Python stat 模块，S_IWRITE 实例源码

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def delete(self):
        """
        WindowsError is raised if the file cannot be deleted
        """
        if self.isfile():
            selfStr = str(self)
            try:
                os.remove(selfStr)
            except WindowsError:
                os.chmod(selfStr, stat.S_IWRITE)
                os.remove(selfStr)
        elif self.isdir():
            selfStr = str(self.asDir())
            for f in self.files(recursive=True):
                f.delete()

            shutil.rmtree(selfStr, True)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def ExecRecursiveMirror(self, source, dest):
    """Emulation of rm -rf out && cp -af in out."""
    if os.path.exists(dest):
      if os.path.isdir(dest):
        def _on_error(fn, path, dummy_excinfo):
          # The operation failed, possibly because the file is set to
          # read-only. If that's why, make it writable and try the op again.
          if not os.access(path, os.W_OK):
            os.chmod(path, stat.S_IWRITE)
          fn(path)
        shutil.rmtree(dest, onerror=_on_error)
      else:
        if not os.access(dest, os.W_OK):
          # Attempt to make the file writable before deleting it.
          os.chmod(dest, stat.S_IWRITE)
        os.unlink(dest)

    if os.path.isdir(source):
      shutil.copytree(source, dest)
    else:
      shutil.copy2(source, dest)
      # Try to diagnose crbug.com/741603
      if not os.path.exists(dest):
        raise Exception("Copying of %s to %s failed" % (source, dest))

def _CopyRuntimeImpl(target, source, verbose=True):
  """Copy |source| to |target| if it doesn't already exist or if it needs to be
  updated (comparing last modified time as an approximate float match as for
  some reason the values tend to differ by ~1e-07 despite being copies of the
  same file... https://crbug.com/603603).
  """
  if (os.path.isdir(os.path.dirname(target)) and
      (not os.path.isfile(target) or
       abs(os.stat(target).st_mtime - os.stat(source).st_mtime) >= 0.01)):
    if verbose:
      print 'Copying %s to %s...' % (source, target)
    if os.path.exists(target):
      # Make the file writable so that we can delete it now, and keep it
      # readable.
      os.chmod(target, stat.S_IWRITE | stat.S_IREAD)
      os.unlink(target)
    shutil.copy2(source, target)
    # Make the file writable so that we can overwrite or delete it later,
    # keep it readable.
    os.chmod(target, stat.S_IWRITE | stat.S_IREAD)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def test_sync_works(self):
        try:
            synced_file = os.path.join(self.workspace_root, "microDAQ", "exportLocation")
            config = {
                KEYS.USER: "riormt",
                KEYS.P4_PORT: "penguin.natinst.com:1666",
                KEYS.PERFORCE_PATH: "//microDAQ/exportLocation",
                KEYS.CLIENT_WORKSPACE: self.workspace,
                KEYS.FORCE: True
            }
            sync_perforce_path(config, self.status)
            self.assertEqual(self.export_location_path, self.status.status["local_path"])
            self.assertTrue(os.path.exists(synced_file))
            self.assertTrue(self.status.status["succeeded"])
        finally:
            try:
                os.chmod(self.export_location_path, stat.S_IWRITE)
                shutil.rmtree(self.workspace_root)
            except OSError:
                self.fail("Directory was not synced from perforce...")

def ExecRecursiveMirror(self, source, dest):
    """Emulation of rm -rf out && cp -af in out."""
    if os.path.exists(dest):
      if os.path.isdir(dest):
        def _on_error(fn, path, dummy_excinfo):
          # The operation failed, possibly because the file is set to
          # read-only. If that's why, make it writable and try the op again.
          if not os.access(path, os.W_OK):
            os.chmod(path, stat.S_IWRITE)
          fn(path)
        shutil.rmtree(dest, onerror=_on_error)
      else:
        if not os.access(dest, os.W_OK):
          # Attempt to make the file writable before deleting it.
          os.chmod(dest, stat.S_IWRITE)
        os.unlink(dest)

    if os.path.isdir(source):
      shutil.copytree(source, dest)
    else:
      shutil.copy2(source, dest)

def _CopyRuntimeImpl(target, source, verbose=True):
  """Copy |source| to |target| if it doesn't already exist or if it needs to be
  updated (comparing last modified time as an approximate float match as for
  some reason the values tend to differ by ~1e-07 despite being copies of the
  same file... https://crbug.com/603603).
  """
  if (os.path.isdir(os.path.dirname(target)) and
      (not os.path.isfile(target) or
       abs(os.stat(target).st_mtime - os.stat(source).st_mtime) >= 0.01)):
    if verbose:
      print 'Copying %s to %s...' % (source, target)
    if os.path.exists(target):
      # Make the file writable so that we can delete it now.
      os.chmod(target, stat.S_IWRITE)
      os.unlink(target)
    shutil.copy2(source, target)
    # Make the file writable so that we can overwrite or delete it later.
    os.chmod(target, stat.S_IWRITE)

def save_token_file(token):
    token_file = raw_input("> Enter token file location [~/.sympy/release-token] ")
    token_file = token_file or "~/.sympy/release-token"

    token_file_expand = os.path.expanduser(token_file)
    token_file_expand = os.path.abspath(token_file_expand)
    token_folder, _ = os.path.split(token_file_expand)

    try:
        if not os.path.isdir(token_folder):
            os.mkdir(token_folder, 0o700)
        with open(token_file_expand, 'w') as f:
            f.write(token + '\n')
        os.chmod(token_file_expand, stat.S_IREAD | stat.S_IWRITE)
    except OSError as e:
        print("> Unable to create folder for token file: ", e)
        return
    except IOError as e:
        print("> Unable to save token file: ", e)
        return

    return token_file

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def ExecRecursiveMirror(self, source, dest):
    """Emulation of rm -rf out && cp -af in out."""
    if os.path.exists(dest):
      if os.path.isdir(dest):
        def _on_error(fn, path, excinfo):
          # The operation failed, possibly because the file is set to
          # read-only. If that's why, make it writable and try the op again.
          if not os.access(path, os.W_OK):
            os.chmod(path, stat.S_IWRITE)
          fn(path)
        shutil.rmtree(dest, onerror=_on_error)
      else:
        if not os.access(dest, os.W_OK):
          # Attempt to make the file writable before deleting it.
          os.chmod(dest, stat.S_IWRITE)
        os.unlink(dest)

    if os.path.isdir(source):
      shutil.copytree(source, dest)
    else:
      shutil.copy2(source, dest)

def ExecRecursiveMirror(self, source, dest):
    """Emulation of rm -rf out && cp -af in out."""
    if os.path.exists(dest):
      if os.path.isdir(dest):
        def _on_error(fn, path, dummy_excinfo):
          # The operation failed, possibly because the file is set to
          # read-only. If that's why, make it writable and try the op again.
          if not os.access(path, os.W_OK):
            os.chmod(path, stat.S_IWRITE)
          fn(path)
        shutil.rmtree(dest, onerror=_on_error)
      else:
        if not os.access(dest, os.W_OK):
          # Attempt to make the file writable before deleting it.
          os.chmod(dest, stat.S_IWRITE)
        os.unlink(dest)

    if os.path.isdir(source):
      shutil.copytree(source, dest)
    else:
      shutil.copy2(source, dest)

def _CopyRuntimeImpl(target, source, verbose=True):
  """Copy |source| to |target| if it doesn't already exist or if it needs to be
  updated (comparing last modified time as an approximate float match as for
  some reason the values tend to differ by ~1e-07 despite being copies of the
  same file... https://crbug.com/603603).
  """
  if (os.path.isdir(os.path.dirname(target)) and
      (not os.path.isfile(target) or
       abs(os.stat(target).st_mtime - os.stat(source).st_mtime) >= 0.01)):
    if verbose:
      print 'Copying %s to %s...' % (source, target)
    if os.path.exists(target):
      # Make the file writable so that we can delete it now.
      os.chmod(target, stat.S_IWRITE)
      os.unlink(target)
    shutil.copy2(source, target)
    # Make the file writable so that we can overwrite or delete it later.
    os.chmod(target, stat.S_IWRITE)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def CacheRetrieveFunc(target, source, env):
    t = target[0]
    fs = t.fs
    cd = env.get_CacheDir()
    cachedir, cachefile = cd.cachepath(t)
    if not fs.exists(cachefile):
        cd.CacheDebug('CacheRetrieve(%s):  %s not in cache\n', t, cachefile)
        return 1
    cd.CacheDebug('CacheRetrieve(%s):  retrieving from %s\n', t, cachefile)
    if SCons.Action.execute_actions:
        if fs.islink(cachefile):
            fs.symlink(fs.readlink(cachefile), t.get_internal_path())
        else:
            env.copy_from_cache(cachefile, t.get_internal_path())
        st = fs.stat(cachefile)
        fs.chmod(t.get_internal_path(), stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
    return 0

def copyFunc(dest, source, env):
    """Install a source file or directory into a destination by copying,
    (including copying permission/mode bits)."""

    if os.path.isdir(source):
        if os.path.exists(dest):
            if not os.path.isdir(dest):
                raise SCons.Errors.UserError("cannot overwrite non-directory `%s' with a directory `%s'" % (str(dest), str(source)))
        else:
            parent = os.path.split(dest)[0]
            if not os.path.exists(parent):
                os.makedirs(parent)
        scons_copytree(source, dest)
    else:
        shutil.copy2(source, dest)
        st = os.stat(source)
        os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)

    return 0

#
# Functions doing the actual work of the InstallVersionedLib Builder.
#

def copyFuncVersionedLib(dest, source, env):
    """Install a versioned library into a destination by copying,
    (including copying permission/mode bits) and then creating
    required symlinks."""

    if os.path.isdir(source):
        raise SCons.Errors.UserError("cannot install directory `%s' as a version library" % str(source) )
    else:
        # remove the link if it is already there
        try:
            os.remove(dest)
        except:
            pass
        shutil.copy2(source, dest)
        st = os.stat(source)
        os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
        installShlibLinks(dest, source, env)

    return 0

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def mirror_pic(output_data_path, _dir, pic, img):

    fname, fextension = os.path.splitext(pic)

    mirror_x_img = img[:, ::-1, :]
    mirror_x_img_gray = rgb2gray(mirror_x_img)
    mirror_y_img = img[::-1, :, :]
    mirror_y_img_gray = rgb2gray(mirror_y_img)
    mirror_xy_img = img[::-1, ::-1, :]
    mirror_xy_img_gray = rgb2gray(mirror_xy_img)

    misc.imsave(os.path.join(output_data_path, _dir, (fname + '_mirror_x' + fextension)), mirror_x_img_gray)
    os.chmod(os.path.join(output_data_path, _dir, (fname + '_mirror_x' + fextension)), stat.S_IWRITE)
    misc.imsave(os.path.join(output_data_path, _dir, (fname + '_mirror_y' + fextension)), mirror_y_img_gray)
    os.chmod(os.path.join(output_data_path, _dir, (fname + '_mirror_y' + fextension)), stat.S_IWRITE)
    misc.imsave(os.path.join(output_data_path, _dir, (fname + '_mirror_xy' + fextension)), mirror_xy_img_gray)
    os.chmod(os.path.join(output_data_path, _dir, (fname + '_mirror_xy' + fextension)), stat.S_IWRITE)

    return mirror_x_img, mirror_y_img, mirror_xy_img

def ExecRecursiveMirror(self, source, dest):
    """Emulation of rm -rf out && cp -af in out."""
    if os.path.exists(dest):
      if os.path.isdir(dest):
        def _on_error(fn, path, excinfo):
          # The operation failed, possibly because the file is set to
          # read-only. If that's why, make it writable and try the op again.
          if not os.access(path, os.W_OK):
            os.chmod(path, stat.S_IWRITE)
          fn(path)
        shutil.rmtree(dest, onerror=_on_error)
      else:
        if not os.access(dest, os.W_OK):
          # Attempt to make the file writable before deleting it.
          os.chmod(dest, stat.S_IWRITE)
        os.unlink(dest)

    if os.path.isdir(source):
      shutil.copytree(source, dest)
    else:
      shutil.copy2(source, dest)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    exctype, value = exc_info[:2]
    if not ((exctype is WindowsError and value.args[0] == 5) or #others
            (exctype is OSError and value.args[0] == 13) or #python2.4
            (exctype is PermissionError and value.args[3] == 5) #python3.3
            ):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path)

def _write(self):
        if threading.currentThread().isDaemon():
            log.warning('daemon thread cannot write wallet')
            return
        if not self.modified:
            return
        s = json.dumps(self.data, indent=4, sort_keys=True)
        temp_path = "%s.tmp.%s" % (self.path, os.getpid())
        with open(temp_path, "w") as f:
            f.write(s)
            f.flush()
            os.fsync(f.fileno())

        if os.path.exists(self.path):
            mode = os.stat(self.path).st_mode
        else:
            mode = stat.S_IREAD | stat.S_IWRITE
        # perform atomic write on POSIX systems
        try:
            os.rename(temp_path, self.path)
        except:
            os.remove(self.path)
            os.rename(temp_path, self.path)
        os.chmod(self.path, mode)
        self.modified = False

def force_delete(self, path=None):
        path = os.path.abspath(path or self.path)
        if path is None or os.path.exists(path) == False : return
        if os.path.isfile(path):
            os.chmod(path, stat.S_IWRITE)
            os.remove(path)
            return
        try    : shutil.rmtree(path)
        except :
            del_dir_paths = []
            for dirpath, dirnames, filenames in os.walk(path):
                try    : shutil.rmtree(dirpath)
                except :
                    del_dir_paths.append(dirpath)
                    for filename in filenames:
                        del_file_path = os.path.join(dirpath, filename)
                        os.chmod(del_file_path, stat.S_IWRITE)
                        os.remove(del_file_path)
            del_dir_paths.sort(reverse=True)
            for del_dir_path in del_dir_paths:
                os.chmod(del_dir_path, stat.S_IWRITE)
                os.rmdir(del_dir_path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func in [os.unlink, os.remove] and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func in [os.unlink, os.remove] and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def execute(self, name, options, parameters):
        try:
            self._cmdLock.acquire()
            self._log.debug("execute(%s, %s, %s)", name, options, parameters)
            if not name.startswith("/"):
                raise CF.InvalidFileName(CF.CF_EINVAL, "Filename must be absolute")

            if self.isLocked(): raise CF.Device.InvalidState("System is locked down")
            if self.isDisabled(): raise CF.Device.InvalidState("System is disabled")

            priority = 0
            stack_size = 4096
            invalidOptions = []
            for option in options:
                val = option.value.value()
                if option.id == CF.ExecutableDevice.PRIORITY_ID:
                    if ((not isinstance(val, int)) and (not isinstance(val, long))):
                        invalidOptions.append(option)
                    else:
                        priority = val
                elif option.id == CF.ExecutableDevice.STACK_SIZE_ID:
                    if ((not isinstance(val, int)) and (not isinstance(val, long))):
                        invalidOptions.append(option)
                    else:
                        stack_size = val
            if len(invalidOptions) > 0:
                self._log.error("execute() received invalid options %s", invalidOptions)
                raise CF.ExecutableDevice.InvalidOptions(invalidOptions)

            command = name[1:] # This is relative to our CWD
            self._log.debug("Running %s %s", command, os.getcwd())

            if not os.path.isfile(command):
                raise CF.InvalidFileName(CF.CF_EINVAL, "File could not be found %s" % command)
            os.chmod(command, os.stat(command)[0] | stat.S_IEXEC | stat.S_IREAD | stat.S_IWRITE)
        finally:
            self._cmdLock.release()

        return self._execute(command, options, parameters)

def rmtree_readonly(directory):
    if os.path.islink(directory):
        os.remove(directory)
    else:
        def remove_readonly(func, path, _):
            os.chmod(path, stat.S_IWRITE)
            func(path)
        shutil.rmtree(directory, onerror=remove_readonly)


# Directory navigation

def remove(path):
    def remove_readonly(func, path, _):
        os.chmod(path, stat.S_IWRITE)
        func(path)

    shutil.rmtree(path, onerror=remove_readonly)

def auto_chmod(func, arg, exc):
    if func is os.remove and os.name=='nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    reraise(et, (ev[0], ev[1] + (" %s %s" % (func,arg))))

def _remove_dir(target):

    #on windows this seems to a problem
    for dir_path, dirs, files in os.walk(target):
        os.chmod(dir_path, stat.S_IWRITE)
        for filename in files:
            os.chmod(os.path.join(dir_path, filename), stat.S_IWRITE)
    shutil.rmtree(target)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def remove_readonly(func, path, excinfo):
        os.chmod(path, stat.S_IWRITE)
        func(path)

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func is os.remove and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func is os.remove and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func is os.remove and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def rmtree_errorhandler(func, path, exc_info):
    """On Windows, the files in .svn are read-only, so when rmtree() tries to
    remove them, an exception is thrown.  We catch that here, remove the
    read-only attribute, and hopefully continue without problems."""
    # if file type currently read only
    if os.stat(path).st_mode & stat.S_IREAD:
        # convert to read/write
        os.chmod(path, stat.S_IWRITE)
        # use the original function to repeat the operation
        func(path)
        return
    else:
        raise

def auto_chmod(func, arg, exc):
    if func in [os.unlink, os.remove] and os.name == 'nt':
        chmod(arg, stat.S_IWRITE)
        return func(arg)
    et, ev, _ = sys.exc_info()
    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))

def setWritable(self, state=True):
        """
        sets the writeable flag (ie: !readonly)
        """
        try:
            setTo = stat.S_IREAD
            if state:
                setTo = stat.S_IWRITE

            os.chmod(self, setTo)
        except:
            pass