# Buggy code
def generate(
    self,
    more_content: Any = None,
    real_modname: str = None,
    check_module: bool = False,
    all_members: bool = False,
) -> None:
    """Generate reST for the object given by *self.name*, and possibly for
    its members.

    If *more_content* is given, include that content. If *real_modname* is
    given, use that module name to find attribute docs. If *check_module* is
    True, only generate if the object is defined in the module name it is
    imported from. If *all_members* is True, document all members.
    """
    if not self.parse_name():
        # need a module to import
        logger.warning(
            __(
                "don't know which module to import for autodocumenting "
                '%r (try placing a "module" or "currentmodule" directive '
                "in the document, or giving an explicit module name)"
            )
            % self.name,
            type="autodoc",
        )
        return

    # now, import the module and get object to document
    if not self.import_object():
        return

    # If there is no real module defined, figure out which to use.
    # The real module is used in the module analyzer to look up the module
    # where the attribute documentation would actually be found in.
    # This is used for situations where you have a module that collects the
    # functions and classes of internal submodules.
    guess_modname = self.get_real_modname()
    self.real_modname = real_modname or guess_modname

    # try to also get a source code analyzer for attribute docs
    try:
        self.analyzer = ModuleAnalyzer.for_module(self.real_modname)
        # parse right now, to get PycodeErrors on parsing (results will
        # be cached anyway)
        self.analyzer.find_attr_docs()
    except PycodeError:
        logger.debug("[autodoc] module analyzer failed:", exc_info=True)
        # no source file -- e.g. for builtin and C modules
        self.analyzer = None
        # at least add the module.__file__ as a dependency
        if hasattr(self.module, "__file__") and self.module.__file__:
            self.directive.filename_set.add(self.module.__file__)
    else:
        self.directive.filename_set.add(self.analyzer.srcname)

    if self.real_modname != guess_modname:
        # Add module to dependency list if target object is defined in other module.
        try:
            analyzer = ModuleAnalyzer.for_module(guess_modname)
            self.directive.filename_set.add(analyzer.srcname)
        except PycodeError:
            pass

    # check __module__ of object (for members not given explicitly)
    if check_module:
        if not self.check_module():
            return

    sourcename = self.get_sourcename()

    # make sure that the result starts with an empty line.  This is
    # necessary for some situations where another directive preprocesses
    # reST and no starting newline is present
    self.add_line("", sourcename)

    # format the object's signature, if any
    sig = self.format_signature()

    # generate the directive header and options, if applicable
    self.add_directive_header(sig)
    self.add_line("", sourcename)

    # e.g. the module directive doesn't have content
    self.indent += self.content_indent

    # add all content (from docstrings, attribute docs etc.)
    self.add_content(more_content)

    # document members, if possible
    self.document_members(all_members)


# Traceback (TypeError)
Process Process-2:
Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "/usr/lib/python3.6/multiprocessing/process.py", line 93, in run
self._target(*self._args, **self._kwargs)
File "/home/robsan00/venv/python3/lib/python3.6/site-packages/sphinx/util/parallel.py", line 91, in _process
pipe.send((failed, collector.logs, ret))
File "/usr/lib/python3.6/multiprocessing/connection.py", line 206, in send
self._send_bytes(_ForkingPickler.dumps(obj))
File "/usr/lib/python3.6/multiprocessing/reduction.py", line 51, in dumps
cls(buf, protocol).dump(obj)
TypeError: can't pickle traceback objects

Exception occurred:
File "/usr/lib/python3.6/multiprocessing/connection.py", line 383, in _recv
raise EOFError
EOFError
The full traceback has been saved in /tmp/sphinx-err-4oh9kpix.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
Process Process-6:
(...)

# Fixed code
def generate(
    self,
    more_content: Any = None,
    real_modname: str = None,
    check_module: bool = False,
    all_members: bool = False,
) -> None:
    """Generate reST for the object given by *self.name*, and possibly for
    its members.

    If *more_content* is given, include that content. If *real_modname* is
    given, use that module name to find attribute docs. If *check_module* is
    True, only generate if the object is defined in the module name it is
    imported from. If *all_members* is True, document all members.
    """
    if not self.parse_name():
        # need a module to import
        logger.warning(
            __(
                "don't know which module to import for autodocumenting "
                '%r (try placing a "module" or "currentmodule" directive '
                "in the document, or giving an explicit module name)"
            )
            % self.name,
            type="autodoc",
        )
        return

    # now, import the module and get object to document
    if not self.import_object():
        return

    # If there is no real module defined, figure out which to use.
    # The real module is used in the module analyzer to look up the module
    # where the attribute documentation would actually be found in.
    # This is used for situations where you have a module that collects the
    # functions and classes of internal submodules.
    guess_modname = self.get_real_modname()
    self.real_modname = real_modname or guess_modname

    # try to also get a source code analyzer for attribute docs
    try:
        self.analyzer = ModuleAnalyzer.for_module(self.real_modname)
        # parse right now, to get PycodeErrors on parsing (results will
        # be cached anyway)
        self.analyzer.find_attr_docs()
    except PycodeError as exc:
        logger.debug("[autodoc] module analyzer failed: %s", exc)
        # no source file -- e.g. for builtin and C modules
        self.analyzer = None
        # at least add the module.__file__ as a dependency
        if hasattr(self.module, "__file__") and self.module.__file__:
            self.directive.filename_set.add(self.module.__file__)
    else:
        self.directive.filename_set.add(self.analyzer.srcname)

    if self.real_modname != guess_modname:
        # Add module to dependency list if target object is defined in other module.
        try:
            analyzer = ModuleAnalyzer.for_module(guess_modname)
            self.directive.filename_set.add(analyzer.srcname)
        except PycodeError:
            pass

    # check __module__ of object (for members not given explicitly)
    if check_module:
        if not self.check_module():
            return

    sourcename = self.get_sourcename()

    # make sure that the result starts with an empty line.  This is
    # necessary for some situations where another directive preprocesses
    # reST and no starting newline is present
    self.add_line("", sourcename)

    # format the object's signature, if any
    sig = self.format_signature()

    # generate the directive header and options, if applicable
    self.add_directive_header(sig)
    self.add_line("", sourcename)

    # e.g. the module directive doesn't have content
    self.indent += self.content_indent

    # add all content (from docstrings, attribute docs etc.)
    self.add_content(more_content)

    # document members, if possible
    self.document_members(all_members)