TypeError: Protocols cannot be instantiated #1332

jessielaf · 2021-09-02T08:57:08Z

I am having a issue with getting the date from a git commit. I keep getting this error:

Traceback (most recent call last):
  File "/code/manage.py", line 19, in <module>
    main()
  File "/code/manage.py", line 15, in main
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 413, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 354, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 398, in execute
    output = self.handle(*args, **options)
  File "/code/commits/management/commands/scan_commits.py", line 35, in handle
    self.create_commits_branch(project, branch)
  File "/code/commits/management/commands/scan_commits.py", line 57, in create_commits_branch
    date=datetime.fromtimestamp(git_commit.committed_date),
  File "/usr/local/lib/python3.9/site-packages/gitdb/util.py", line 253, in __getattr__
    self._set_cache_(attr)
  File "/usr/local/lib/python3.9/site-packages/git/objects/commit.py", line 199, in _set_cache_
    self._deserialize(BytesIO(stream.read()))
  File "/usr/local/lib/python3.9/site-packages/git/objects/commit.py", line 528, in _deserialize
    self.tree = Tree(self.repo, hex_to_bin(readline().split()[1]), Tree.tree_id << 12, '')
  File "/usr/local/lib/python3.9/site-packages/git/objects/tree.py", line 215, in __init__
    super(Tree, self).__init__(repo, binsha, mode, path)
  File "/usr/local/lib/python3.9/site-packages/git/objects/base.py", line 168, in __init__
    super(IndexObject, self).__init__(repo, binsha)
  File "/usr/local/lib/python3.9/site-packages/git/objects/base.py", line 56, in __init__
    super(Object, self).__init__()
  File "/usr/local/lib/python3.9/typing.py", line 1083, in _no_init
    raise TypeError('Protocols cannot be instantiated')
TypeError: Protocols cannot be instantiated

I get this error with the python 3.9 in docker. Using version 3.1.20 of GitPython.

The text was updated successfully, but these errors were encountered:

jakob-keller · 2021-09-02T12:20:15Z

I am experiencing the same issue since upgrading to GitPython 3.1.20 and Python 3.9.7. Downgrading GitPython to 3.1.18 fixed it for me.

This could be related to bc37d15

msbuhl · 2021-09-03T09:34:39Z

I got this error with Python 3.9.7
A downgrade to Python 3.9.6 fixed it for me

Using GitPython 3.1.20

Yobmod · 2021-09-09T17:57:24Z

Hi,
Yeah, this is caused by a change in how python enforces protocol initilisation.
But it should also be worked-around in main already ( #1318) - it worked for 3.10.0, just have to test 3.9.7.
3.9.7 tests passed, So will be fixed on next release.

gitpython-developers/GitPython#1332 Package-Manager: Portage-3.0.20, Repoman-3.0.3 Signed-off-by: Matthew Thode <prometheanfire@gentoo.org>

gitpython-3.1.20 (imported via Kapitan 0.30.0rc0) triggers a regression in Python 3.9.7, with errors like ``` simon@wyvern:~/work/syn/commodore $ poetry run commodore component new test Adding component test... Traceback (most recent call last): File "<string>", line 1, in <module> File "/home/simon/work/syn/commodore/commodore/cli.py", line 327, in main commodore.main(prog_name="commodore", auto_envvar_prefix="COMMODORE") File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 1053, in main rv = self.invoke(ctx) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 1659, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 1659, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 1395, in invoke return ctx.invoke(self.callback, **ctx.params) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/decorators.py", line 84, in new_func return ctx.invoke(f, obj, *args, **kwargs) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/home/simon/work/syn/commodore/commodore/cli.py", line 264, in component_new f.create() File "/home/simon/work/syn/commodore/commodore/component/template.py", line 100, in create git.commit(repo, "Initial commit", self.config) File "/home/simon/work/syn/commodore/commodore/git.py", line 230, in commit repo.index.commit(commit_message, author=author, committer=author) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/git/index/base.py", line 1000, in commit tree = self.write_tree() File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/git/index/base.py", line 574, in write_tree root_tree = Tree(self.repo, binsha, path='') File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/git/objects/tree.py", line 215, in __init__ super(Tree, self).__init__(repo, binsha, mode, path) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/git/objects/base.py", line 168, in __init__ super(IndexObject, self).__init__(repo, binsha) File "/home/simon/.cache/pypoetry/virtualenvs/syn-commodore-mfZDsTMQ-py3.9/lib/python3.9/site-packages/git/objects/base.py", line 56, in __init__ super(Object, self).__init__() File "/usr/lib/python3.9/typing.py", line 1083, in _no_init raise TypeError('Protocols cannot be instantiated') TypeError: Protocols cannot be instantiated ``` This issue has been reported in gitpython-developers/GitPython#1332 and should be fixed with a workaround in the next release of gitpython. Additionally, the regression should be fixed in the next Python 3.9 patch release, cf. https://bugs.python.org/issue45121

1Mark · 2021-11-12T20:19:26Z

I had the same issue using python3.9.7 and GitPython 3.1.19. After upgrading to 3.1.24 the error went away.

@Yobmod can we close this?

Byron assigned Byron and Yobmod and unassigned Byron Sep 5, 2021

Yobmod mentioned this issue Sep 9, 2021

General fixes for next release #1318

Merged

Yobmod mentioned this issue Sep 24, 2021

repo.index.commit fails on python 3.10.0-rc2 (but not 3.10.0-rc1) #1341

Closed

gentoo-bot pushed a commit to gentoo/gentoo that referenced this issue Oct 20, 2021

dev-python/GitPython: 3.9.7 stable amd64/x86/arm64

c6ffbfa

gitpython-developers/GitPython#1332 Package-Manager: Portage-3.0.20, Repoman-3.0.3 Signed-off-by: Matthew Thode <prometheanfire@gentoo.org>

simu mentioned this issue Nov 19, 2021

Update GitPython to 3.1.24 kapicorp/kapitan#797

Closed

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TypeError: Protocols cannot be instantiated #1332

TypeError: Protocols cannot be instantiated #1332

jessielaf commented Sep 2, 2021

jakob-keller commented Sep 2, 2021 •

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msbuhl commented Sep 3, 2021 •

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Yobmod commented Sep 9, 2021 •

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1Mark commented Nov 12, 2021 •

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TypeError: Protocols cannot be instantiated #1332

TypeError: Protocols cannot be instantiated #1332

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jessielaf commented Sep 2, 2021

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msbuhl commented Sep 3, 2021 •

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Yobmod commented Sep 9, 2021 •

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