feat: Add AssertionError variant to PolarsError in polars-error

[Kevin-Patyk]

This PR adds support for assertion errors to Polars error handling system. The assertion errors will ultimately be used in Rust when working on migrating assert_series_equal and assert_frame_equal to Rust to facilitate testing. This is the first part (of roughly 3) working on this issue: #21388

crates/polars-error/src/lib.rs:

• Added AssertionError variant to PolarsError enum
• Added AssertionError to implementation of Display
• Added AssertionError to wrap_msg()
• Added a macro for AssertionError under macro rules! polars_err

crates/polars-python/src/error.rs

• Imported AssertionError exception
• Added AssertionError match arm

crates/polars-python/src/exceptions.rs

• Added AssertionError to create_exception!()

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 79.99%. Comparing base (93bfd2c) to head (e3bd004).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/polars-error/src/lib.rs	0.00%	2 Missing ⚠️
crates/polars-python/src/error.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #21460      +/-   ##
==========================================
+ Coverage   79.94%   79.99%   +0.05%     
==========================================
  Files        1597     1598       +1     
  Lines      229007   229199     +192     
  Branches     2620     2620              
==========================================
+ Hits       183074   183355     +281     
+ Misses      45334    45245      -89     
  Partials      599      599              

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[ritchie46]

This wasn't sufficient. We also need the python data types. See polars.exceptions.

[Kevin-Patyk]

Shall I update py-polars/polars/exceptions.py and make a new PR?

[coastalwhite]

This wasn't sufficient. We also need the python data types. See polars.exceptions.

I actually think it is better to map it to the PyAssertionError from PyO3. This way you can catch it with the existing exceptions.

[Kevin-Patyk]

This wasn't sufficient. We also need the python data types. See polars.exceptions.

I actually think it is better to map it to the PyAssertionError from PyO3. This way you can catch it with the existing exceptions.

If we choose to rely on PyAssertionError, then I do have to update error.rs and exception.rs files.