Allow version ranges for uvicorn and fastapi

[artamonovkirill]

While trying to bump pact-python version in one of our projects, I get the following error (we are using poetry):

⋊> poetry update                                         11:36:03
Updating dependencies
Resolving dependencies... (48.7s)

  SolverProblemError

  Because pact-python (1.4.0) depends on uvicorn (0.14.0)
   and no versions of pact-python match >1.4.0,<2.0.0, pact-python (>=1.4.0,<2.0.0) requires uvicorn (0.14.0).
  So, because <our project name> depends on both uvicorn (0.15.0) and pact-python (^1.4.0), version solving failed.

  at /usr/local/Cellar/poetry/1.1.7/libexec/lib/python3.9/site-packages/poetry/puzzle/solver.py:241 in _solve
      237│             packages = result.packages
      238│         except OverrideNeeded as e:
      239│             return self.solve_in_compatibility_mode(e.overrides, use_latest=use_latest)
      240│         except SolveFailure as e:
    → 241│             raise SolverProblemError(e)
      242│ 
      243│         results = dict(
      244│             depth_first_search(
      245│                 PackageNode(self._package, packages), aggregate_package_nodes

Would it be possible to allow a range of uvicorn versions, e.g., >= 0.14.0?

Same for FastAPI - since it's the main dependency for some of our services, there is a high chance that the exact version will not match with one defined in pact-python.

Thanks in advance.

[elliottmurray]

I've created #255. I have never used poetry though. Can you check it out locally and test for me? If it's all good I'll make a patch release.

[artamonovkirill]

@elliottmurray , works fine

poetry update                                                                              09:47:23
Updating dependencies
Resolving dependencies... (51.7s)

Writing lock file

Package operations: 2 installs, 1 update, 0 removals

  • Installing starlette (0.14.2)
  • Installing fastapi (0.68.0)
  • Updating pact-python (1.3.9 -> 1.4.0 9d4620e)

🙌