Bump coverage from 7.15.4 to 7.16.0

[dependabot]

Bumps coverage from 7.15.4 to 7.16.0.

Release notes

Sourced from coverage's releases.

7.16.0

Version 7.16.0 — 2026-08-28

• When combining files, now path separator slashes will automatically be converted to the local file system style. This makes it less necessary to define [paths] configuration to combine data across operating systems. Fixes issue 2266.
• The Coverage.switch_context() method now returns the previous context.
• Fix: previously, a [paths] pattern would be replaced everywhere in a file path when it was only meant to be replaced once, in the leading portion of the path. This is now fixed, in pull 2268.
• Fixes to validation of options and configuration settings:
  • Negative precision settings now always cause useful error messages (pull 2261).
  • An invalid regex in the --contexts option (or the [report] contexts setting) reported a confusing “Couldn’t use data file …: user-defined function raised exception” error. Now it raises a proper configuration error naming the bad regex, like other regex settings do (pull 2262).
  • Non-string values in TOML configuration settings now produce a helpful error message instead of a traceback. This affects list settings whose elements aren’t strings (like omit, exclude_lines, or a [paths] entry), file settings like data_file, and any wrong-typed value in the [paths] section (pull 2263).
  • coverage run refuses run-affecting command-line options like --branch alongside --concurrency=multiprocessing, since they can’t reach the subprocesses. The check only recognized multiprocessing as the entire option value, so --concurrency=multiprocessing,thread slipped through and failed later with “Can’t combine statement coverage data with branch data”. Each named concurrency library is now properly considered (pull 2270).
• Fix: coverage annotate -d DIR raised an AssertionError if any measured file had an extension other than .py, such as a .pyw file on Windows. The original extension is now restored on the annotated copy (pull 2265).

➡️  PyPI page: coverage 7.16.0. :arrow_right:  To install: python3 -m pip install coverage==7.16.0

Changelog

Sourced from coverage's changelog.

Version 7.16.0 — 2026-08-28

• When combining files, now path separator slashes will automatically be converted to the local file system style. This makes it less necessary to define [paths] configuration to combine data across operating systems. Fixes issue 2266_.

• The :meth:.Coverage.switch_context method now returns the previous context.

• Fix: previously, a [paths] pattern would be replaced everywhere in a file path when it was only meant to be replaced once, in the leading portion of the path. This is now fixed, in pull 2268_.

• Fixes to validation of options and configuration settings:

  • Negative precision settings now always cause useful error messages (pull 2261_).

  • An invalid regex in the --contexts option (or the [report] contexts setting) reported a confusing "Couldn't use data file ...: user-defined function raised exception" error. Now it raises a proper configuration error naming the bad regex, like other regex settings do (pull 2262_).

  • Non-string values in TOML configuration settings now produce a helpful error message instead of a traceback. This affects list settings whose elements aren't strings (like omit, exclude_lines, or a [paths] entry), file settings like data_file, and any wrong-typed value in the [paths] section (pull 2263_).

  • coverage run refuses run-affecting command-line options like --branch alongside --concurrency=multiprocessing, since they can't reach the subprocesses. The check only recognized multiprocessing as the entire option value, so --concurrency=multiprocessing,thread slipped through and failed later with "Can't combine statement coverage data with branch data". Each named concurrency library is now properly considered (pull 2270_).

• Fix: coverage annotate -d DIR raised an AssertionError if any measured file had an extension other than .py, such as a .pyw file on Windows. The original extension is now restored on the annotated copy (pull 2265_).

.. _pull 2261: coveragepy/coveragepy#2261 .. _pull 2262: coveragepy/coveragepy#2262 .. _pull 2263: coveragepy/coveragepy#2263 .. _pull 2265: coveragepy/coveragepy#2265 .. _issue 2266: coveragepy/coveragepy#2266 .. _pull 2268: coveragepy/coveragepy#2268

... (truncated)

Commits

• 3e9fc16 docs: prep for 7.16.0
• 38be8d1 build: control check-manifest explicitly
• 8eb1266 docs(build): no longer commit sample_html
• 1a8b3fa docs: remove sample_html
• aeaa79b docs: linklint is now sphinx-linklint
• d5eaf3f test: a branchless way to re-add extensions
• 57e52fd docs: adjust CHANGES for #2270
• b9d304d fix: check for multiprocessing in a --concurrency list (#2270)
• a6ef928 chore: make upgrade
• 070461f chore: bump the action-dependencies group with 4 updates (#2271)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.28%. Comparing base (9810f50) to head (9157585).
⚠️ Report is 2 commits behind head on 3.15.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.15   #13620   +/-   ##
=======================================
  Coverage   96.28%   96.28%           
=======================================
  Files         161      161           
  Lines       52005    52005           
  Branches     2861     2861           
=======================================
+ Hits        50072    50073    +1     
  Misses       1752     1752           
+ Partials      181      180    -1     

Flag	Coverage Δ
CI-GHA	96.23% <ø> (+<0.01%)	⬆️
OS-Linux	96.02% <ø> (-0.01%)	⬇️
OS-Windows	94.00% <ø> (+<0.01%)	⬆️
OS-macOS	95.42% <ø> (ø)
Py-3.10	95.35% <ø> (ø)
Py-3.11	95.61% <ø> (ø)
Py-3.12	95.69% <ø> (+<0.01%)	⬆️
Py-3.13	95.68% <ø> (ø)
Py-3.14	95.79% <ø> (ø)
Py-3.14t	95.07% <ø> (+<0.01%)	⬆️
Py-pypy-3.11	94.64% <ø> (-0.01%)	⬇️
VM-macos	95.42% <ø> (ø)
VM-ubuntu	96.02% <ø> (-0.01%)	⬇️
VM-windows	94.00% <ø> (+<0.01%)	⬆️
cython-coverage	79.12% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

[codspeed-hq]

Merging this PR will improve performance by 18.81%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 2 improved benchmarks
✅ 92 untouched benchmarks
⏩ 86 skipped benchmarks¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	test_client_receive_large_websocket_compressed_messages[isal.isal_zlib-pyloop]	74.7 ms	61.6 ms	+21.32%
⚡	test_client_send_large_websocket_compressed_messages[isal.isal_zlib-pyloop]	74.7 ms	64.2 ms	+16.36%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing dependabot/pip/3.15/coverage-7.16.0 (9157585) with 3.15 (9810f50)}

Footnotes

1. 86 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩