我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用site.py()。
def unpack_and_compile(self, egg_path, destination): to_compile = [] to_chmod = [] def pf(src, dst): if dst.endswith('.py') and not src.startswith('EGG-INFO/'): to_compile.append(dst) elif dst.endswith('.dll') or dst.endswith('.so'): to_chmod.append(dst) self.unpack_progress(src, dst) return not self.dry_run and dst or None unpack_archive(egg_path, destination, pf) self.byte_compile(to_compile) if not self.dry_run: for f in to_chmod: mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755 chmod(f, mode)
def unpack_and_compile(self, egg_path, destination): to_compile = [] to_chmod = [] def pf(src, dst): if dst.endswith('.py') and not src.startswith('EGG-INFO/'): to_compile.append(dst) elif dst.endswith('.dll') or dst.endswith('.so'): to_chmod.append(dst) self.unpack_progress(src,dst) return not self.dry_run and dst or None unpack_archive(egg_path, destination, pf) self.byte_compile(to_compile) if not self.dry_run: for f in to_chmod: mode = ((os.stat(f)[stat.ST_MODE]) | 0x16D) & 0xFED # 0555, 07755 chmod(f, mode)
def write_script(self, script_name, contents, mode="t", blockers=()): """Write an executable file to the scripts directory""" self.delete_blockers( # clean up old .py/.pyw w/o a script [os.path.join(self.script_dir, x) for x in blockers] ) log.info("Installing %s script to %s", script_name, self.script_dir) target = os.path.join(self.script_dir, script_name) self.add_output(target) mask = current_umask() if not self.dry_run: ensure_directory(target) if os.path.exists(target): os.unlink(target) with open(target, "w" + mode) as f: f.write(contents) chmod(target, 0o777 - mask)
def write_script(self, script_name, contents, mode="t", blockers=()): """Write an executable file to the scripts directory""" self.delete_blockers( # clean up old .py/.pyw w/o a script [os.path.join(self.script_dir, x) for x in blockers] ) log.info("Installing %s script to %s", script_name, self.script_dir) target = os.path.join(self.script_dir, script_name) self.add_output(target) mask = current_umask() if not self.dry_run: ensure_directory(target) if os.path.exists(target): os.unlink(target) f = open(target, "w" + mode) f.write(contents) f.close() chmod(target, 0o777 - mask)
def write_script(self, script_name, contents, mode="t", blockers=()): """Write an executable file to the scripts directory""" self.delete_blockers( # clean up old .py/.pyw w/o a script [os.path.join(self.script_dir,x) for x in blockers]) log.info("Installing %s script to %s", script_name, self.script_dir) target = os.path.join(self.script_dir, script_name) self.add_output(target) mask = current_umask() if not self.dry_run: ensure_directory(target) if os.path.exists(target): os.unlink(target) f = open(target,"w"+mode) f.write(contents) f.close() chmod(target, 0x1FF-mask) # 0777
def check_site_dir(self): """Verify that self.install_dir is .pth-capable dir, if needed""" instdir = normalize_path(self.install_dir) pth_file = os.path.join(instdir, 'easy-install.pth') # Is it a configured, PYTHONPATH, implicit, or explicit site dir? is_site_dir = instdir in self.all_site_dirs if not is_site_dir and not self.multi_version: # No? Then directly test whether it does .pth file processing is_site_dir = self.check_pth_processing() else: # make sure we can write to target dir testfile = self.pseudo_tempname() + '.write-test' test_exists = os.path.exists(testfile) try: if test_exists: os.unlink(testfile) open(testfile, 'w').close() os.unlink(testfile) except (OSError, IOError): self.cant_write_to_target() if not is_site_dir and not self.multi_version: # Can't install non-multi to non-site dir raise DistutilsError(self.no_default_version_msg()) if is_site_dir: if self.pth_file is None: self.pth_file = PthDistributions(pth_file, self.all_site_dirs) else: self.pth_file = None if instdir not in map(normalize_path, _pythonpath()): # only PYTHONPATH dirs need a site.py, so pretend it's there self.sitepy_installed = True elif self.multi_version and not os.path.exists(pth_file): self.sitepy_installed = True # don't need site.py in this case self.pth_file = None # and don't create a .pth file self.install_dir = instdir
def install_eggs(self, spec, dist_filename, tmpdir): # .egg dirs or files are already built, so just return them if dist_filename.lower().endswith('.egg'): return [self.install_egg(dist_filename, tmpdir)] elif dist_filename.lower().endswith('.exe'): return [self.install_exe(dist_filename, tmpdir)] # Anything else, try to extract and build setup_base = tmpdir if os.path.isfile(dist_filename) and not dist_filename.endswith('.py'): unpack_archive(dist_filename, tmpdir, self.unpack_progress) elif os.path.isdir(dist_filename): setup_base = os.path.abspath(dist_filename) if (setup_base.startswith(tmpdir) # something we downloaded and self.build_directory and spec is not None): setup_base = self.maybe_move(spec, dist_filename, setup_base) # Find the setup.py file setup_script = os.path.join(setup_base, 'setup.py') if not os.path.exists(setup_script): setups = glob(os.path.join(setup_base, '*', 'setup.py')) if not setups: raise DistutilsError( "Couldn't find a setup script in %s" % os.path.abspath(dist_filename) ) if len(setups) > 1: raise DistutilsError( "Multiple setup scripts in %s" % os.path.abspath(dist_filename) ) setup_script = setups[0] # Now run it, and return the result if self.editable: log.info(self.report_editable(spec, setup_script)) return [] else: return self.build_and_install(setup_script, setup_base)
def _update_zipimporter_cache(normalized_path, cache, updater=None): """ Update zipimporter cache data for a given normalized path. Any sub-path entries are processed as well, i.e. those corresponding to zip archives embedded in other zip archives. Given updater is a callable taking a cache entry key and the original entry (after already removing the entry from the cache), and expected to update the entry and possibly return a new one to be inserted in its place. Returning None indicates that the entry should not be replaced with a new one. If no updater is given, the cache entries are simply removed without any additional processing, the same as if the updater simply returned None. """ for p in _collect_zipimporter_cache_entries(normalized_path, cache): # N.B. pypy's custom zipimport._zip_directory_cache implementation does # not support the complete dict interface: # * Does not support item assignment, thus not allowing this function # to be used only for removing existing cache entries. # * Does not support the dict.pop() method, forcing us to use the # get/del patterns instead. For more detailed information see the # following links: # https://github.com/pypa/setuptools/issues/202#issuecomment-202913420 # https://bitbucket.org/pypy/pypy/src/dd07756a34a41f674c0cacfbc8ae1d4cc9ea2ae4/pypy/module/zipimport/interp_zipimport.py#cl-99 old_entry = cache[p] del cache[p] new_entry = updater and updater(p, old_entry) if new_entry is not None: cache[p] = new_entry
def is_python_script(script_text, filename): """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc. """ if filename.endswith('.py') or filename.endswith('.pyw'): return True # extension says it's Python if is_python(script_text, filename): return True # it's syntactically valid Python if script_text.startswith('#!'): # It begins with a '#!' line, so check if 'python' is in it somewhere return 'python' in script_text.splitlines()[0].lower() return False # Not any Python I can recognize
def _get_script_args(cls, type_, name, header, script_text): "For Windows, add a .py extension" ext = dict(console='.pya', gui='.pyw')[type_] if ext not in os.environ['PATHEXT'].lower().split(';'): msg = ( "{ext} not listed in PATHEXT; scripts will not be " "recognized as executables." ).format(**locals()) warnings.warn(msg, UserWarning) old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe'] old.remove(ext) header = cls._adjust_header(type_, header) blockers = [name + x for x in old] yield name + ext, header + script_text, 't', blockers
def _get_script_args(cls, type_, name, header, script_text): """ For Windows, add a .py extension and an .exe launcher """ if type_ == 'gui': launcher_type = 'gui' ext = '-script.pyw' old = ['.pyw'] else: launcher_type = 'cli' ext = '-script.py' old = ['.py', '.pyc', '.pyo'] hdr = cls._adjust_header(type_, header) blockers = [name + x for x in old] yield (name + ext, hdr + script_text, 't', blockers) yield ( name + '.exe', get_win_launcher(launcher_type), 'b' # write in binary mode ) if not is_64bit(): # install a manifest for the launcher to prevent Windows # from detecting it as an installer (which it will for # launchers like easy_install.exe). Consider only # adding a manifest for launchers detected as installers. # See Distribute #143 for details. m_name = name + '.exe.manifest' yield (m_name, load_launcher_manifest(name), 't') # for backward-compatibility
