@@ -110,6 +110,8 @@ To typecheck, run: `mypy -p git`
 
 To test, run: `pytest`
 
+For automatic code formatting run: `black git`
+
 Configuration for flake8 is in the ./.flake8 file.
 
 Configurations for mypy, pytest and coverage.py are in ./pyproject.toml.
 
@@ -122,6 +122,7 @@ def handle_process_output(
         To specify a timeout in seconds for the git command, after which the process
         should be killed.
     """
+
     # Use 2 "pump" threads and wait for both to finish.
     def pump_stream(
         cmdline: List[str],
@@ -488,10 +489,7 @@ def check_unsafe_options(cls, options: List[str], unsafe_options: List[str]) ->
         """
         # Options can be of the form `foo` or `--foo bar` `--foo=bar`,
         # so we need to check if they start with "--foo" or if they are equal to "foo".
-        bare_unsafe_options = [
-            option.lstrip("-")
-            for option in unsafe_options
-        ]
+        bare_unsafe_options = [option.lstrip("-") for option in unsafe_options]
         for option in options:
             for unsafe_option, bare_option in zip(unsafe_options, bare_unsafe_options):
                 if option.startswith(unsafe_option) or option == bare_option:
@@ -1194,7 +1192,6 @@ def transform_kwargs(self, split_single_char_options: bool = True, **kwargs: Any
 
     @classmethod
     def _unpack_args(cls, arg_list: Sequence[str]) -> List[str]:
-
         outlist = []
         if isinstance(arg_list, (list, tuple)):
             for arg in arg_list:
 
@@ -248,7 +248,6 @@ def items_all(self) -> List[Tuple[str, List[_T]]]:
 
 
 def get_config_path(config_level: Lit_config_levels) -> str:
-
     # we do not support an absolute path of the gitconfig on windows ,
     # use the global config instead
     if is_win and config_level == "system":
@@ -655,7 +654,7 @@ def write_section(name: str, section_dict: _OMD) -> None:
 
             values: Sequence[str]  # runtime only gets str in tests, but should be whatever _OMD stores
             v: str
-            for (key, values) in section_dict.items_all():
+            for key, values in section_dict.items_all():
                 if key == "__name__":
                     continue
 
 
@@ -145,7 +145,7 @@ def diff(
         args.append("--full-index")  # get full index paths, not only filenames
 
         # remove default '-M' arg (check for renames) if user is overriding it
-        if not any(x in kwargs for x in ('find_renames', 'no_renames', 'M')):
+        if not any(x in kwargs for x in ("find_renames", "no_renames", "M")):
             args.append("-M")
 
         if create_patch:
@@ -338,7 +338,6 @@ def __init__(
         change_type: Optional[Lit_change_type],
         score: Optional[int],
     ) -> None:
-
         assert a_rawpath is None or isinstance(a_rawpath, bytes)
         assert b_rawpath is None or isinstance(b_rawpath, bytes)
         self.a_rawpath = a_rawpath
 
@@ -139,7 +139,6 @@ def __init__(
         valid_files: Sequence[PathLike],
         failed_reasons: List[str],
     ) -> None:
-
         Exception.__init__(self, message)
         self.failed_files = failed_files
         self.failed_reasons = failed_reasons
@@ -170,7 +169,6 @@ def __init__(
         stderr: Union[bytes, str, None] = None,
         stdout: Union[bytes, str, None] = None,
     ) -> None:
-
         super(HookExecutionError, self).__init__(command, status, stderr, stdout)
         self._msg = "Hook('%s') failed%s"
 
 
@@ -394,7 +394,6 @@ def aggressive_tree_merge(odb: "GitCmdObjectDB", tree_shas: Sequence[bytes]) ->
                         out.append(_tree_entry_to_baseindexentry(theirs, 0))
                     # END handle modification
                 else:
-
                     if ours[0] != base[0] or ours[1] != base[1]:
                         # they deleted it, we changed it, conflict
                         out.append(_tree_entry_to_baseindexentry(base, 1))
 
@@ -345,9 +345,7 @@ def trailers(self) -> Dict[str, str]:
             Dictionary containing whitespace stripped trailer information.
             Only contains the latest instance of each trailer key.
         """
-        return {
-            k: v[0] for k, v in self.trailers_dict.items()
-        }
+        return {k: v[0] for k, v in self.trailers_dict.items()}
 
     @property
     def trailers_list(self) -> List[Tuple[str, str]]:
 
@@ -190,7 +190,6 @@ def traverse_trees_recursive(
     # is a tree. If the match is a non-tree item, put it into the result.
     # Processed items will be set None
     for ti, tree_data in enumerate(trees_data):
-
         for ii, item in enumerate(tree_data):
             if not item:
                 continue
 
@@ -143,7 +143,7 @@ def utctz_to_altz(utctz: str) -> int:
     :param utctz: git utc timezone string, i.e. +0200
     """
     int_utctz = int(utctz)
-    seconds = ((abs(int_utctz) // 100) * 3600 + (abs(int_utctz) % 100) * 60)
+    seconds = (abs(int_utctz) // 100) * 3600 + (abs(int_utctz) % 100) * 60
     return seconds if int_utctz < 0 else -seconds
 
 
 
@@ -826,7 +826,6 @@ def _get_fetch_info_from_stderr(
         progress: Union[Callable[..., Any], RemoteProgress, None],
         kill_after_timeout: Union[None, float] = None,
     ) -> IterableList["FetchInfo"]:
-
         progress = to_progress_instance(progress)
 
         # skip first line as it is some remote info we are not interested in