Fix typecheck: TextIOBase instead of TextIO

[tovrstra]

This fixes one aspect of #367, includes test.

As far as I understand, type hints should still use TextIO from the typing module, so I'm not changing these.

Summary by Sourcery

This pull request fixes a type checking issue by replacing TextIO with TextIOBase in the _interpret_file_lineno function and adds a new test to verify the handling of mixed pure Cartesian data.

• Bug Fixes:
  • Fixed type checking by replacing TextIO with TextIOBase in the _interpret_file_lineno function.
• Tests:
  • Added a new test test_mixed_pure_cartesian to verify the handling of mixed pure Cartesian data in the molden_dump_one function.

[deepsource-io[bot]]

Here's the code health analysis summary for commits 22475e1..d3fbc2b. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Shell	✅ Success		View Check ↗
Python	✅ Success		View Check ↗

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[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This pull request addresses a type checking issue by replacing TextIO with TextIOBase in the iodata/utils.py file. Additionally, a new test function test_mixed_pure_cartesian has been added to iodata/test/test_molden.py to validate the handling of mixed pure Cartesian data.

File-Level Changes

Files	Changes
iodata/test/test_molden.py iodata/utils.py	Added a new test case in test_molden.py and fixed type checking by replacing TextIO with TextIOBase in utils.py.

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[tovrstra]

Thanks for checking, Paul!