Fix pypi token keyrinerror (#5189) (#5911)

* add checking for env variable in pypi token getter

* add unit tests for env pypi token

* add checking for env variable in pypi token getter

* add unit tests for env pypi token

* add info to the changelog

* refactor the structure

* fix unit tests

* undo changelog addition

* change docstring format to sphinx

* delete uncrsy unit test

* Delete unscry funtion call

Co-authored-by: Bjorn Neergaard <bjorn@neersighted.com>

* Update src/poetry/utils/password_manager.py

Co-authored-by: Bartosz Sokorski <b.sokorski@gmail.com>

* fix unit tests

* lol

* fix type hints

Co-authored-by: Bjorn Neergaard <bjorn@neersighted.com>
Co-authored-by: Bartosz Sokorski <b.sokorski@gmail.com>

src/poetry/utils/password_manager.py

@@ -170,12 +170,21 @@ class PasswordManager:
         else:
         else:
             self.keyring.set_password(name, "__token__", token)
             self.keyring.set_password(name, "__token__", token)
 
 
-    def get_pypi_token(self, name: str) -> str | None:
-        if not self.keyring.is_available():
-            token: str | None = self._config.get(f"pypi-token.{name}")
+    def get_pypi_token(self, repo_name: str) -> str | None:
+        """Get PyPi token.
+
+        First checks the environment variables for a token,
+        then the configured username/password and the
+        available keyring.
+
+        :param repo_name:  Name of repository.
+        :return: Returns a token as a string if found, otherwise None.
+        """
+        token: str | None = self._config.get(f"pypi-token.{repo_name}")
+        if token:
             return token
             return token
 
 
-        return self.keyring.get_password(name, "__token__")
+        return self.keyring.get_password(repo_name, "__token__")
 
 
     def delete_pypi_token(self, name: str) -> None:
     def delete_pypi_token(self, name: str) -> None:
         if not self.keyring.is_available():
         if not self.keyring.is_available():

tests/utils/test_password_manager.py

@@ -231,3 +231,31 @@ def test_get_http_auth_from_environment_variables(
 
 
     assert auth["username"] == "bar"
     assert auth["username"] == "bar"
     assert auth["password"] == "baz"
     assert auth["password"] == "baz"
+
+
+def test_get_pypi_token_with_env_var_positive(
+    mocker: MockerFixture,
+    config: Config,
+    with_simple_keyring: None,
+    dummy_keyring: DummyBackend,
+):
+    sample_token = "sampletoken-1234"
+    repo_name = "foo"
+    manager = PasswordManager(config)
+    mocker.patch.dict(
+        os.environ,
+        {f"POETRY_PYPI_TOKEN_{repo_name.upper()}": sample_token},
+    )
+
+    assert manager.get_pypi_token(repo_name) == sample_token
+
+
+def test_get_pypi_token_with_env_var_not_available(
+    config: Config, with_simple_keyring: None, dummy_keyring: DummyBackend
+):
+    repo_name = "foo"
+    manager = PasswordManager(config)
+
+    result_token = manager.get_pypi_token(repo_name)
+
+    assert result_token is None