def _find_runtime_with_pip()

in aws_lambda_builders/workflows/python_pip/actions.py [0:0]

• 15 lines of code
• 8 McCabe index (conditional complexity)

    def _find_runtime_with_pip(self) -> Tuple[SubprocessPip, str]:
        """
        Finds a Python runtime that also contains `pip`.

        Returns
        -------
        Tuple[SubprocessPip, str]
            Returns a tuple of the SubprocessPip object created from
            a valid Python runtime and the runtime path itself

        Raises
        ------
        ActionFailedError
            Raised if the method is not able to find a valid runtime
            that has the correct Python and pip installed
        """
        binary_object: Optional[BinaryPath] = self.binaries.get(self.LANGUAGE)

        if not binary_object:
            raise ActionFailedError("Failed to fetch Python binaries from the PATH.")

        for python_path in binary_object.resolver.exec_paths:
            try:
                valid_python_path = binary_object.validator.validate(python_path)

                if valid_python_path:
                    pip = SubprocessPip(osutils=self._os_utils, python_exe=valid_python_path)

                    return (pip, valid_python_path)
            except (MisMatchRuntimeError, RuntimeValidatorError):
                # runtime and mismatch exceptions should have been caught
                # during the init phase

                # we can ignore these and let the action fail at the end
                LOG.debug(f"Python runtime path '{python_path}' does not match the workflow")
            except MissingPipError:
                LOG.debug(f"Python runtime path '{python_path}' does not contain pip")

        raise ActionFailedError("Failed to find a Python runtime containing pip on the PATH.")