3.3.0: self test failure due to `resources/snapshot_report_template.jinja2`

[0-wiz-0]

When running the self tests for 3.3.0 with Python 3.13.4, I see

tests/workers/test_worker_manager.py ....                                                                                                                                                                            [100%]Traceback (most recent call last):
  File "/usr/pkg/bin/pytest-3.13", line 8, in <module>
    sys.exit(console_main())
             ~~~~~~~~~~~~^^
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/config/__init__.py", line 201, in console_main
    code = main()
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/config/__init__.py", line 175, in main
    ret: ExitCode | int = config.hook.pytest_cmdline_main(config=config)
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_hooks.py", line 512, in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_manager.py", line 120, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
           ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 167, in _multicall
    raise exception
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 121, in _multicall
    res = hook_impl.function(*args)
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/main.py", line 330, in pytest_cmdline_main
    return wrap_session(config, _main)
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/main.py", line 318, in wrap_session
    config.hook.pytest_sessionfinish(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        session=session, exitstatus=session.exitstatus
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_hooks.py", line 512, in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_manager.py", line 120, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
           ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 167, in _multicall
    raise exception
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 139, in _multicall
    teardown.throw(exception)
    ~~~~~~~~~~~~~~^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/logging.py", line 868, in pytest_sessionfinish
    return (yield)
            ^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 139, in _multicall
    teardown.throw(exception)
    ~~~~~~~~~~~~~~^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/terminal.py", line 893, in pytest_sessionfinish
    result = yield
             ^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 139, in _multicall
    teardown.throw(exception)
    ~~~~~~~~~~~~~~^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/_pytest/warnings.py", line 141, in pytest_sessionfinish
    return (yield)
            ^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pluggy/_callers.py", line 121, in _multicall
    res = hook_impl.function(*args)
  File "/usr/pkg/lib/python3.13/site-packages/pytest_textual_snapshot.py", line 291, in pytest_sessionfinish
    save_svg_diffs(diffs, session, num_snapshots_passing)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/site-packages/pytest_textual_snapshot.py", line 355, in save_svg_diffs
    template = Template(snapshot_template_path.read_text())
                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/pkg/lib/python3.13/pathlib/_local.py", line 546, in read_text
    return PathBase.read_text(self, encoding, errors, newline)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/pathlib/_abc.py", line 632, in read_text
    with self.open(mode='r', encoding=encoding, errors=errors, newline=newline) as f:
         ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/pkg/lib/python3.13/pathlib/_local.py", line 537, in open
    return io.open(self, mode, buffering, encoding, errors, newline)
           ~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/usr/pkg/lib/python3.13/site-packages/resources/snapshot_report_template.jinja2'
*** Error code 1

When I install the file in that location manually, the error goes away.

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[willmcgugan]

Check you are running the latest pytest-textual-snapshot. Given it works elsewhere this is likely an environment issue.

[0-wiz-0]

Yes, I'm running the latest pytest-textual-snapshot. If you think it's an issue with one of the dependencies, here is a list of all installed python modules when I run the test:

aiohappyeyeballs-2.6.1
aiohttp-3.12.13
aiosignal-1.3.2
attrs-25.3.0
babel-2.17.0
build-1.2.2.post1
click-8.2.1
coverage-7.8.0
cython-3.1.2
execnet-2.1.1
frozenlist-1.6.2
idna-3.10
iniconfig-2.1.0
installer-0.7.0
jinja2-3.1.6
linkify-it-py-2.0.3
markdown-it-py-3.0.0
markupsafe-3.0.2
mdurl-0.1.2
msgpack-1.1.0
multidict-6.4.4
packaging-25.0
platformdirs-4.3.8
pluggy-1.6.0
poetry-core-2.1.3
propcache-0.3.2
pygments-2.19.1
pyparsing-3.2.3
pyproject_hooks-1.2.0
rich-14.0.0
syrupy-4.9.1
test-8.3.5
test-aiohttp-1.1.0
test-asyncio-0.26.0
test-cov-6.1.1
test-textual-snapshot-1.1.0
test-xdist-3.6.1
textual-3.3.0
textual-dev-1.7.0
typing-extensions-4.14.0
uc-micro-py-1.0.3
yarl-1.20.1

(some names might be slightly off since I use the pkgsrc names)
However, how would this explain that when I install the file manually, the problem goes away?

[davep]

For what it's worth, here on macOS at least, if I:

git clone git@github.com:textualize/textual
cd textual
make setup
make test

the tests run to completion just fine, I don't see that error. This is of course Textual 3.4.0 at this point.

[TomJGooding]

This was also reported in pytest-textual-snapshot - apparently the problem is that this file now isn't included when building the sdist:

• Include resources package when building wheels pytest-textual-snapshot#26