refactor: Use pathlib over os

[matthewfeickert]

• Use pathlib.Path over os.path in all instances of the codebase.

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.87%. Comparing base (cb5dcf2) to head (092ad2b).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/skhep_testdata/remote_files.py	75.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #196      +/-   ##
==========================================
- Coverage   72.38%   71.87%   -0.52%     
==========================================
  Files           3        3              
  Lines         134      128       -6     
==========================================
- Hits           97       92       -5     
+ Misses         37       36       -1     

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[Copilot]

Pull Request Overview

This PR refactors the codebase to use pathlib.Path instead of os.path for all file path operations, improving code readability and modernizing the code to use Python 3's pathlib module.

Key Changes:

• Replaced os.path.join(), os.path.dirname(), os.path.exists(), os.path.isfile(), and os.makedirs() with pathlib equivalents
• Updated type hints to accept str | Path where appropriate
• Removed unused errno and os imports where fully replaced

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/test_remote_files.py	Replaced os.path.join with Path / operator for creating test file paths
tests/test_local_files.py	Converted directory construction and file existence checks to use Path methods
src/skhep_testdata/remote_files.py	Comprehensive refactoring of file operations to pathlib, including directory creation, file checks, and path manipulation; updated type hints to support Path objects
setup.py	Replaced os.path.join with Path / operator for file path construction

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[ariostas]

Looks good to me!

[matthewfeickert]

Thanks @ariostas. I'm going to merge this then with one review, but others are welcome and if there are issues found we can do a follow up PR.

[eduardo-rodrigues]

Thanks @ariostas. I'm going to merge this then with one review, but others are welcome and if there are issues found we can do a follow up PR.

This is nicer, thank you @matthewfeickert.