$ git clone https://github.com/gitpython-developers/GitPython git-python $ cd git-python $ python -m venv --prompt git venv $ .\venv\Scirpts\Activate.ps1 # or whatever script is appropriate for you $ rm pyproject.toml # make any edit $ git status -sb ## main...origin/main D pyproject.toml $ python >>> from git import Repo >>> repo.index.reset(working_tree=True) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\<user>\code\git-python\git\index\util.py", line 103, in check_default_index return func(self, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\<user>\code\git-python\git\index\base.py", line 1320, in reset new_inst = type(self).from_tree(self.repo, commit) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\<user>\code\git-python\git\index\base.py", line 367, in from_tree repo.git.read_tree(*arg_list, **kwargs) File "C:\Users\<user>\code\git-python\git\cmd.py", line 739, in <lambda> return lambda *args, **kwargs: self._call_process(name, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user>\code\git-python\git\cmd.py", line 1312, in _call_process return self.execute(call, **exec_kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\<user>\code\git-python\git\cmd.py", line 1107, in execute raise GitCommandError(redacted_command, status, stderr_value, stdout_value) git.exc.GitCommandError: Cmd('git') failed due to: exit code(128) cmdline: git read-tree --index-output=C:\Users\<user>\code\git-python\.git\tmpxnmxtmmu HEAD stderr: 'fatal: unable to write new index file'