[pull] main from python:main #504
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Fix inconsistent subprocess.Popen.communicate() behavior between Windows and POSIX when using memoryview objects with non-byte elements as input. On POSIX systems, the code was incorrectly comparing bytes written against element count instead of byte count, causing data truncation for large inputs with non-byte element types. Changes: - Cast memoryview inputs to byte view when input is already a memoryview - Fix progress tracking to use len(input_view) instead of len(self._input) - Add comprehensive test coverage for memoryview inputs 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com> * old-man-yells-at-ReST * Update 2025-05-30-18-37-44.gh-issue-134453.kxkA-o.rst * assertIsNone review feedback * fix memoryview_nonbytes test to fail without our fix on main, and have a nicer error. Thanks to Peter Bierma @ZeroIntensity for the code review.
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