timezone.dst(dt) Always returns None.

exception shutil.Error This exception collects exceptions that are raised during a multi-file operation. For copytree(), the exception argument is a list of 3-tuples (srcname, dstname, exception).

_setroot(element) Replaces the root element for this tree. This discards the current contents of the tree, and replaces it with the given element. Use with care. element is an element instance.

exception http.client.CannotSendRequest A subclass of ImproperConnectionState.

PurePath.parts A tuple giving access to the path’s various components: >>> p = PurePath('/usr/bin/python3') >>> p.parts ('/', 'usr', 'bin', 'python3') >>> p = PureWindowsPath('c:/Program Files/PSF') >>> p.parts ('c:\\', 'Program Files', 'PSF') (note how the drive and local root are regrouped in a single part)

DocumentType.entities This is a NamedNodeMap giving the definitions of external entities. For entity names defined more than once, only the first definition is provided (others are ignored as required by the XML recommendation). This may be None if the information is not provided by the parser, or if no entities are defined.

PurePath.relative_to(*other) Compute a version of this path relative to the path represented by other. If it’s impossible, ValueError is raised: >>> p = PurePosixPath('/etc/passwd') >>> p.relative_to('/') PurePosixPath('etc/passwd') >>> p.relative_to('/etc') PurePosixPath('passwd') >>> p.relative_to('/usr') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pathlib.py", line 694, in relative_to .format(str(self

exception mailbox.FormatError Raised when the data in a file cannot be parsed, such as when an MH instance attempts to read a corrupted .mh_sequences file.

Path.is_dir() Return True if the path points to a directory (or a symbolic link pointing to a directory), False if it points to another kind of file. False is also returned if the path doesn’t exist or is a broken symlink; other errors (such as permission errors) are propagated.

is_package(fullname) Determines if the module is a package based on path.