python-shiny deploy fails when Connect version is unavailable

[christierney]

The following code errs when the Connect version is not included in the server settings response (Connect can be configured to hide version information.)

rsconnect-python/rsconnect/utils_package.py

Lines 220 to 221 in 3d86cd0

	if not (app_mode == AppModes.PYTHON_SHINY and compare_semvers(connect_version_string, "2024.01.0") == -1):
	return environment

rsconnect-python/rsconnect/main.py

Lines 1698 to 1701 in 3d86cd0

	environment = fix_starlette_requirements(
	environment=environment,
	app_mode=app_mode,
	connect_version_string=ce.client.server_settings()["version"],

Traceback (most recent call last):

  File "/home/ USERNAME /venv311/venv_test_shiny/lib/python3.11/site-packages/rsconnect/main.py", line 118, in wrapper

    result = func(*args, **kwargs)

             ^^^^^^^^^^^^^^^^^^^^^

  File "/home/ USERNAME /venv311/venv_test_shiny/lib/python3.11/site-packages/click/decorators.py", line 34, in new_func

    return f(get_current_context(), *args, **kwargs)

           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/home/USERNAME/venv311/venv_test_shiny/lib/python3.11/site-packages/rsconnect/main.py", line 1698, in deploy_app

    environment = fix_starlette_requirements(

                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/home/ USERNAME /venv311/venv_test_shiny/lib/python3.11/site-packages/rsconnect/utils_package.py", line 220, in fix_starlette_requirements

    if not (app_mode == AppModes.PYTHON_SHINY and compare_semvers(connect_version_string, "2024.01.0") == -1):

                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/home/ USERNAME /venv311/venv_test_shiny/lib/python3.11/site-packages/rsconnect/utils_package.py", line 58, in compare_semvers

    return semver.VersionInfo.parse(version1).compare(version2)  # type: ignore

           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/home/ USERNAME /venv311/venv_test_shiny/lib/python3.11/site-packages/semver/version.py", line 644, in parse

    raise ValueError(f"{version} is not valid SemVer string")

ValueError:  is not valid SemVer string

Internal error:  is not valid SemVer string

 

    Posit Connect version: <redacted>

Reported via https://rstudioide.zendesk.com/agent/tickets/120597