Skip to content

Patch in enum deepcopy on Python 3.10 #312

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
stefanv merged 1 commit into from
Jan 22, 2026
Merged

Patch in enum deepcopy on Python 3.10 #312

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 0 additions & 1 deletion pyproject.toml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@ classifiers = [
"Programming Language :: Python :: 3 :: Only",
]
dependencies = [
"click>=8,<=8.2; python_version == '3.10'", # cannot deepcopy cmd params (specifically, Sentinel.UNSET) on 3.10
"click>=8,!=8.3.0,<8.4",
"tomli; python_version < '3.11'",
"colorama; platform_system == 'Windows'",
Expand Down
9 changes: 9 additions & 0 deletions spin/cmds/util.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
)

import copy
import enum
import os
import shlex
import shutil
Expand Down Expand Up @@ -159,6 +160,14 @@ def build(*, parent_callback, extra=None, **kwargs):
"""
my_cmd = copy.copy(cmd)

# This patch is to work around an enum deepcopy bug in Python 3.10.
if not hasattr(enum.Enum, "__deepcopy__"):

def __deepcopy__(self, memo):
return self

enum.Enum.__deepcopy__ = __deepcopy__ # type: ignore[method-assign]

# This is necessary to ensure that added options do not leak
# to the original command
my_cmd.params = copy.deepcopy(cmd.params)
Expand Down
Loading