PYTHON-6063 Remove PyPy support

[sleepyStick]

PYTHON-6063

Changes in this PR

Test Plan

Checklist

Checklist for Author

• Did you update the changelog (if necessary)?
• Is there test coverage?
• Is any followup work tracked in a JIRA ticket? If so, add link(s).

Checklist for Reviewer

• Does the title of the PR reference a JIRA Ticket?
• Do you fully understand the implementation? (Would you be comfortable explaining how this code works to someone else?)
• Is all relevant documentation (README or docstring) updated?

[sleepyStick]

oops made this branch off of my previous branch hence the first commit not relating to this ticket >.<

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[Copilot]

🟡 Changes recommended

Removing the last @flaky use leaves an unused import that will fail linting.

1 open finding

• Remove unused flaky import from synchronous tests · New

What changed in this PR

Removes PyPy support across packaging, runtime accommodations, tests, documentation, and Evergreen CI.

Changes:

• Declares CPython 3.11+ as the supported interpreter range.
• Removes PyPy-specific workarounds and test skips.
• Removes PyPy CI tasks and regenerates Evergreen configuration.

File	Description
README.md	Documents CPython-only support.
CONTRIBUTING.md	Updates interpreter and CI guidance.
pyproject.toml	Removes the PyPy classifier.
_setup.py	Enables extension builds except on GraalPy.
doc/​changelog.rst	Announces removal of PyPy support.
bson/​codec_options.py	Generalizes implementation-specific commentary.
pymongo/​common.py	Generalizes implementation-specific commentary.
pymongo/​network_layer.py	Removes PyPy socket handling.
pymongo/​pool_options.py	Removes PyPy-specific metadata formatting.
pymongo/​asynchronous/​pool.py	Updates race-condition commentary.
pymongo/​synchronous/​pool.py	Mirrors pool commentary update.
.evergreen/​scripts/​setup-uv-python.sh	Removes PyPy examples.
.evergreen/​scripts/​setup_tests.py	Enables coverage without implementation filtering.
.evergreen/​scripts/​generate_config.py	Removes PyPy task generation and filtering.
.evergreen/​scripts/​generate_config_utils.py	Removes PyPy interpreter definitions.
.evergreen/​generated_configs/​variants.yml	Regenerates CPython-only variants.
.evergreen/​generated_configs/​tasks.yml	Regenerates CPython-only tasks.
test/​helpers_shared.py	Removes obsolete PyPy commentary.
test/​unified_format.py	Removes PyPy-specific CSOT skips.
test/​test_client.py	Removes PyPy skips and GC workaround.
test/​test_collection.py	Removes obsolete GC commentary.
test/​test_compression_support.py	Assumes tracemalloc availability.
test/​test_discovery_and_monitoring.py	Removes PyPy flakiness marking.
test/​test_load_balancer.py	Simplifies explicit collection.
test/​test_logger.py	Generalizes cleanup commentary.
test/​test_monitor.py	Removes a PyPy skip.
test/​test_network_layer.py	Updates Windows-specific commentary.
test/​test_session.py	Enforces session pooling on supported interpreters.
test/​test_ssl.py	Removes PyPy SSL skips.
test/​test_streaming_protocol.py	Uses the standard heartbeat timeout.
test/​test_transactions.py	Removes a PyPy TLS skip.
test/​asynchronous/​unified_format.py	Removes async PyPy CSOT skips.
test/​asynchronous/​test_async_network_layer.py	Updates Windows-specific commentary.
test/​asynchronous/​test_client.py	Removes async PyPy skips and workaround.
test/​asynchronous/​test_collection.py	Removes obsolete GC commentary.
test/​asynchronous/​test_discovery_and_monitoring.py	Removes PyPy flakiness marking.
test/​asynchronous/​test_load_balancer.py	Simplifies explicit collection.
test/​asynchronous/​test_logger.py	Generalizes cleanup commentary.
test/​asynchronous/​test_monitor.py	Removes a PyPy skip.
test/​asynchronous/​test_session.py	Enforces session pooling on supported interpreters.
test/​asynchronous/​test_ssl.py	Removes async PyPy SSL skips.
test/​asynchronous/​test_streaming_protocol.py	Uses the standard heartbeat timeout.
test/​asynchronous/​test_transactions.py	Removes an async PyPy TLS skip.

🧠 Review effort: Balanced

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