chore(release): pact-python v4.1.0

[pact-foundation]

[pact-python/4.1.0] 2026-10-16

🚀 Features

• (types) Add a str-based URL type

🐛 Bug Fixes

• Keep pact attributes bound under lazy imports

🚜 Refactor

• (verifier) [breaking] Accept only str URLs

  Verifier.state_handler and Verifier.add_source accept only str URLs, and raise TypeError for a yarl.URL; pass str(url) instead. pact.types.StateHandlerUrl is now an alias of str.

• [breaking] Replace yarl.URL with a str-based URL

  PactServer.url and PactServer / str return pact.types.URL, a str subclass that supports / and the scheme, host, port and path attributes. Other yarl.URL methods, such as with_query, are gone; pass query parameters to the HTTP client instead. yarl is no longer a dependency.

⚡️ Performance

• Write the version file at build time
• Import the message and state servers on demand

🧪 Testing

• Run the suite with lazy Pact imports on Python 3.15

Contributors

• @JP-Ellis

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70%. Comparing base (ddbf773) to head (ac857df).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@         Coverage Diff          @@
##           main   #1736   +/-   ##
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  Coverage    70%     70%           
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  Files        19      19           
  Lines      3331    3331           
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  Hits       2337    2337           
  Misses      994     994           

Flag	Coverage Δ
examples	52% <ø> (ø)
tests	69% <ø> (ø)

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