[bkizer-tenable]

Snyk has created this PR to fix 23 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• requirements.txt

⚠️ Warning

matplotlib 3.3.3 requires numpy, which is not installed.
matplotlib 3.3.3 requires pillow, which is not installed.
fpdf2 2.5.5 requires Pillow, which is not installed.

Breaking Change Risk

Notice: This assessment is enhanced by AI.

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[bkizer-tenable]

This is a major upgrade from Pillow 9.2.0 to 13.0.0, which includes multiple significant breaking changes and requires code modifications.

Key Breaking Changes:

• Python Version Support: Support for Python 3.7, 3.8, and 3.9 has been dropped across these releases. Pillow 12.0.0 and later require Python 3.10+.

• Pillow 10.0.0:

  • Image Resampling: The Image.ANTIALIAS constant has been removed. It must be replaced with Image.Resampling.LANCZOS.
  • Font Rendering: The widely used ImageFont.getsize() method has been removed. You must migrate to using font.getbbox() or font.getlength().
  • Image Frames: The im.category attribute has been removed. To check if an image is animated, use getattr(im, "is_animated", False).

• Pillow 13.0.0:

  • PNG Saving: Saving 32-bit integer (I mode) images directly to PNG is no longer supported to prevent silent data loss. You must explicitly convert the image to a supported bit depth first, for example: im.convert("I;16").save("out.png").
  • Removed Methods: Several previously deprecated methods have been removed, including Image._show() and parts of the Image.fromarray() mode parameter functionality.

Recommendation:
This upgrade will likely break existing image processing and text rendering code. Developers must carefully review the changelogs, especially for the migration away from Image.ANTIALIAS and ImageFont.getsize(). Thorough testing is required after updating.

Source: Pillow Release Notes

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