chore(deps-dev): bump coverage from 7.14.1 to 7.16.1 - #1125

Sourced from coverage's releases.

7.16.1

Version 7.16.1 — 2026-09-13

• Fix: when the body of an irrefutable case (like case _:) is entirely excluded, the case line is now excluded too, just as an excluded else: body removes the else: line. Previously the case line was left behind and reported as missing. Closes issue 1563 with pull 2269.
• Fix: using CoverageData.update() twice on an in-memory database would fail, as described in issue 2279. This is now fixed.

➡️  PyPI page: coverage 7.16.1. :arrow_right:  To install: python3 -m pip install coverage==7.16.1

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

7.15.4

Version 7.15.4 — 2026-08-06

• Fix: in the HTML report, a source file name containing a double quote (legal on POSIX) wasn’t escaped where it’s dropped into the href of the index and prev/next links, so it could close the attribute early and inject markup. Page URLs are now escaped. Thanks, Rajath Mohare.
• Fix: the LCOV report wrote file names and other fields into its line-oriented records without neutralizing control characters. A measured file whose name contained a newline (legal on POSIX) could forge extra records, inflating the coverage seen by tools that read the report. Control characters in a field are now replaced. Thanks, Rajath Mohare.
• Wheels are now provided for Python 3.15.

➡️  PyPI page: coverage 7.15.4. :arrow_right:  To install: python3 -m pip install coverage==7.15.4

7.15.3

Version 7.15.3 — 2026-08-02

• Fix: the sysmon core is incompatible with dynamic contexts. Previously, the combination would be prevented when read from the coverage.py configuration. But using the context API as pytest-cov does, contexts would be silently dropped. Now a warning is issued, thanks to Jisang Han. Closes issue 2200.
• A performance improvement in the low-level line number bookkeeping when combining data files, thanks to Kevin Turcios.
• Performance improvement in HTML reporting by reducing the number of times files have to be parsed, thanks to Kevin Turcios.

➡️  PyPI page: coverage 7.15.3. :arrow_right:  To install: python3 -m pip install coverage==7.15.3

7.15.2

Version 7.15.2 — 2026-07-15

• Fix: one of the performance improvements in 7.15.1 (pull 2215) dramatically increased memory use during reporting for large projects. Now we use a different approach that is both faster and slimmer than 7.15.0. Fixes issue 2229.

... (truncated)

Sourced from coverage's changelog.

Version 7.16.1 — 2026-09-13

• Fix: when the body of an irrefutable case (like case _:) is entirely excluded, the case line is now excluded too, just as an excluded else: body removes the else: line. Previously the case line was left behind and reported as missing. Closes issue 1563_ with pull 2269_.

• Fix: using :meth:.CoverageData.update twice on an in-memory database would fail, as described in issue 2279_. This is now fixed.

.. _issue 1563: coveragepy/coveragepy#1563 .. _pull 2269: coveragepy/coveragepy#2269 .. _issue 2279: coveragepy/coveragepy#2279

.. _changes_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 :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

... (truncated)

• ccbb992 docs: prep for 7.16.1
• 0697ccc chore: make upgrade
• 12f3595 chore: bump docker/setup-qemu-action in the action-dependencies group (#2280)
• 35b58d3 fix: CoverageData.update() can be called twice on an in-memory database. #2279
• 92e1ce9 chore: bump the action-dependencies group with 4 updates (#2278)
• bf07310 build: quote var expansion (actionlint SC2086)
• 3c434f5 quality: use shellcheck-py to get shellcheck in GitHub CI
• 632f397 build: use .txt instead of .pip, even though it's a stupid extension
• ffc6a4a test: only run diff-cover on pull requests
• 33553b3 fix: exclude the case line when an irrefutable case body is excluded (#2269)
• Additional commits viewable in compare view

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