Python posixpath 模块,samestat() 实例源码

我们从Python开源项目中,提取了以下38个代码示例,用于说明如何使用posixpath.samestat()

项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_samestat(self):
        test_fn = support.TESTFN + "1"
        self._create_file(test_fn)
        test_fns = [test_fn]*2
        stats = map(os.stat, test_fns)
        self.assertTrue(posixpath.samestat(*stats))
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_samestat_on_links(self):
        test_fn1 = support.TESTFN + "1"
        test_fn2 = support.TESTFN + "2"
        self._create_file(test_fn1)
        test_fns = (test_fn1, test_fn2)
        os.symlink(*test_fns)
        stats = map(os.stat, test_fns)
        self.assertTrue(posixpath.samestat(*stats))
        os.remove(test_fn2)

        self._create_file(test_fn2)
        stats = map(os.stat, test_fns)
        self.assertFalse(posixpath.samestat(*stats))

        self.assertRaises(TypeError, posixpath.samestat)
项目:oil    作者:oilshell    | 项目源码 | 文件源码
def test_samestat(self):
        f = open(test_support.TESTFN + "1", "wb")
        try:
            f.write("foo")
            f.close()
            self.assertIs(
                posixpath.samestat(
                    os.stat(test_support.TESTFN + "1"),
                    os.stat(test_support.TESTFN + "1")
                ),
                True
            )
            # If we don't have links, assume that os.stat() doesn't return
            # reasonable inode information and thus, that samestat() doesn't
            # work.
            if hasattr(os, "symlink"):
                os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    True
                )
                os.remove(test_support.TESTFN + "2")
                f = open(test_support.TESTFN + "2", "wb")
                f.write("bar")
                f.close()
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    False
                )
        finally:
            if not f.close():
                f.close()
项目:python2-tracer    作者:extremecoders-re    | 项目源码 | 文件源码
def test_samestat(self):
        f = open(test_support.TESTFN + "1", "wb")
        try:
            f.write("foo")
            f.close()
            self.assertIs(
                posixpath.samestat(
                    os.stat(test_support.TESTFN + "1"),
                    os.stat(test_support.TESTFN + "1")
                ),
                True
            )
            # If we don't have links, assume that os.stat() doesn't return
            # reasonable inode information and thus, that samestat() doesn't
            # work.
            if hasattr(os, "symlink"):
                os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    True
                )
                os.remove(test_support.TESTFN + "2")
                f = open(test_support.TESTFN + "2", "wb")
                f.write("bar")
                f.close()
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    False
                )
        finally:
            if not f.close():
                f.close()
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_samestat(self):
        test_fn = support.TESTFN + "1"
        self._create_file(test_fn)
        test_fns = [test_fn]*2
        stats = map(os.stat, test_fns)
        self.assertTrue(posixpath.samestat(*stats))
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_samestat_on_links(self):
        test_fn1 = support.TESTFN + "1"
        test_fn2 = support.TESTFN + "2"
        self._create_file(test_fn1)
        test_fns = (test_fn1, test_fn2)
        os.symlink(*test_fns)
        stats = map(os.stat, test_fns)
        self.assertTrue(posixpath.samestat(*stats))
        os.remove(test_fn2)

        self._create_file(test_fn2)
        stats = map(os.stat, test_fns)
        self.assertFalse(posixpath.samestat(*stats))

        self.assertRaises(TypeError, posixpath.samestat)
项目:pefile.pypy    作者:cloudtracer    | 项目源码 | 文件源码
def test_samestat(self):
        f = open(test_support.TESTFN + "1", "wb")
        try:
            f.write("foo")
            f.close()
            self.assertIs(
                posixpath.samestat(
                    os.stat(test_support.TESTFN + "1"),
                    os.stat(test_support.TESTFN + "1")
                ),
                True
            )
            # If we don't have links, assume that os.stat() doesn't return
            # reasonable inode information and thus, that samestat() doesn't
            # work.
            if hasattr(os, "symlink"):
                os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    True
                )
                os.remove(test_support.TESTFN + "2")
                f = open(test_support.TESTFN + "2", "wb")
                f.write("bar")
                f.close()
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    False
                )
        finally:
            if not f.close():
                f.close()
项目:ndk-python    作者:gittor    | 项目源码 | 文件源码
def test_samestat(self):
        f = open(test_support.TESTFN + "1", "wb")
        try:
            f.write("foo")
            f.close()
            self.assertIs(
                posixpath.samestat(
                    os.stat(test_support.TESTFN + "1"),
                    os.stat(test_support.TESTFN + "1")
                ),
                True
            )
            # If we don't have links, assume that os.stat() doesn't return
            # reasonable inode information and thus, that samestat() doesn't
            # work.
            if hasattr(os, "symlink"):
                os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    True
                )
                os.remove(test_support.TESTFN + "2")
                f = open(test_support.TESTFN + "2", "wb")
                f.write("bar")
                f.close()
                self.assertIs(
                    posixpath.samestat(
                        os.stat(test_support.TESTFN + "1"),
                        os.stat(test_support.TESTFN + "2")
                    ),
                    False
                )
        finally:
            if not f.close():
                f.close()
项目:python-    作者:secondtonone1    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        if not isinstance(top, int) or not hasattr(top, '__index__'):
            top = fspath(top)
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:python-    作者:secondtonone1    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except OSError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except OSError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:ivaochdoc    作者:ivaoch    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        if not isinstance(top, int) or not hasattr(top, '__index__'):
            top = fspath(top)
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:ivaochdoc    作者:ivaoch    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except OSError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except OSError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:news-for-good    作者:thecodinghub    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        if not isinstance(top, int) or not hasattr(top, '__index__'):
            top = fspath(top)
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:news-for-good    作者:thecodinghub    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except OSError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except OSError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:Tencent_Cartoon_Download    作者:Fretice    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:Tencent_Cartoon_Download    作者:Fretice    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:fieldsight-kobocat    作者:awemulya    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:fieldsight-kobocat    作者:awemulya    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except error as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:CloudPrint    作者:William-An    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:CloudPrint    作者:William-An    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:gardenbot    作者:GoestaO    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:gardenbot    作者:GoestaO    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:projeto    作者:BarmyPenguin    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:projeto    作者:BarmyPenguin    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:flask-zhenai-mongo-echarts    作者:Fretice    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:flask-zhenai-mongo-echarts    作者:Fretice    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:aweasome_learning    作者:Knight-ZXW    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:aweasome_learning    作者:Knight-ZXW    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                return
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:blog_flask    作者:momantai    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:blog_flask    作者:momantai    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd
项目:MyFriend-Rob    作者:lcheniv    | 项目源码 | 文件源码
def fwalk(top=".", topdown=True, onerror=None, *, follow_symlinks=False, dir_fd=None):
        """Directory tree generator.

        This behaves exactly like walk(), except that it yields a 4-tuple

            dirpath, dirnames, filenames, dirfd

        `dirpath`, `dirnames` and `filenames` are identical to walk() output,
        and `dirfd` is a file descriptor referring to the directory `dirpath`.

        The advantage of fwalk() over walk() is that it's safe against symlink
        races (when follow_symlinks is False).

        If dir_fd is not None, it should be a file descriptor open to a directory,
          and top should be relative; top will then be relative to that directory.
          (dir_fd is always supported for fwalk.)

        Caution:
        Since fwalk() yields file descriptors, those are only valid until the
        next iteration step, so you should dup() them if you want to keep them
        for a longer period.

        Example:

        import os
        for root, dirs, files, rootfd in os.fwalk('python/Lib/email'):
            print(root, "consumes", end="")
            print(sum([os.stat(name, dir_fd=rootfd).st_size for name in files]),
                  end="")
            print("bytes in", len(files), "non-directory files")
            if 'CVS' in dirs:
                dirs.remove('CVS')  # don't visit CVS directories
        """
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        orig_st = stat(top, follow_symlinks=False, dir_fd=dir_fd)
        topfd = open(top, O_RDONLY, dir_fd=dir_fd)
        try:
            if (follow_symlinks or (st.S_ISDIR(orig_st.st_mode) and
                                    path.samestat(orig_st, stat(topfd)))):
                yield from _fwalk(topfd, top, topdown, onerror, follow_symlinks)
        finally:
            close(topfd)
项目:MyFriend-Rob    作者:lcheniv    | 项目源码 | 文件源码
def _fwalk(topfd, toppath, topdown, onerror, follow_symlinks):
        # Note: This uses O(depth of the directory tree) file descriptors: if
        # necessary, it can be adapted to only require O(1) FDs, see issue
        # #13734.

        names = listdir(topfd)
        dirs, nondirs = [], []
        for name in names:
            try:
                # Here, we don't use AT_SYMLINK_NOFOLLOW to be consistent with
                # walk() which reports symlinks to directories as directories.
                # We do however check for symlinks before recursing into
                # a subdirectory.
                if st.S_ISDIR(stat(name, dir_fd=topfd).st_mode):
                    dirs.append(name)
                else:
                    nondirs.append(name)
            except FileNotFoundError:
                try:
                    # Add dangling symlinks, ignore disappeared files
                    if st.S_ISLNK(stat(name, dir_fd=topfd, follow_symlinks=False)
                                .st_mode):
                        nondirs.append(name)
                except FileNotFoundError:
                    continue

        if topdown:
            yield toppath, dirs, nondirs, topfd

        for name in dirs:
            try:
                orig_st = stat(name, dir_fd=topfd, follow_symlinks=follow_symlinks)
                dirfd = open(name, O_RDONLY, dir_fd=topfd)
            except OSError as err:
                if onerror is not None:
                    onerror(err)
                continue
            try:
                if follow_symlinks or path.samestat(orig_st, stat(dirfd)):
                    dirpath = path.join(toppath, name)
                    yield from _fwalk(dirfd, dirpath, topdown, onerror, follow_symlinks)
            finally:
                close(dirfd)

        if not topdown:
            yield toppath, dirs, nondirs, topfd