add: ruff linter

Author: mavwolverine

appmap/__init__.py

@@ -4,7 +4,7 @@
 from _appmap.env import Env  # noqa: F401
 from _appmap.importer import instrument_module  # noqa: F401
 from _appmap.labels import labels  # noqa: F401
-from _appmap.noappmap import decorator as noappmap
+from _appmap.noappmap import decorator as noappmap  # noqa: F401
 from _appmap.recording import Recording  # noqa: F401
 
 try:

appmap/http.py

@@ -52,7 +52,7 @@ def putheader(self, orig, header, *values):
         if not hasattr(request, "headers"):
             request["headers"] = {}
         headers = request["headers"]
-        if not header in headers:
+        if header not in headers:
             headers[header] = []
         headers[header].extend(values)
         orig(self, header, *values)

appmap/labeling/__init__.py

@@ -8,7 +8,7 @@
 import yaml
 from importlib_resources import files
 
-from _appmap.labels import LabelSet
+from _appmap.labels import LabelSet  # noqa: F401
 
 
 @lru_cache(maxsize=None)

appmap/pytest.py

@@ -80,5 +80,5 @@ def pytest_pyfunc_call(pyfuncitem):
             try:
                 with testing_framework.collect_result_metadata(metadata):
                     result.get_result()
-            except:  # pylint: disable=bare-except
+            except:  # pylint: disable=bare-except # noqa: E722
                 pass  # exception got recorded in metadata

appmap/unittest.py

@@ -4,4 +4,3 @@
 
 if not Env.current.is_appmap_repo and Env.current.enables("unittest"):
     logger.debug("Test recording is enabled (unittest)")
-    import _appmap.unittest  # pyright: ignore pylint: disable=unused-import

pyproject.toml

@@ -49,6 +49,7 @@ packaging = ">=19.0"
 #
 # So, if you'd like to run the tests outside of tox, run `pip install -r requirements-dev.txt` to
 # install it and the rest of the dev dependencies.
+ruff = "^0.3.3"
 
 [tool.poetry.group.dev.dependencies]
 SQLAlchemy = "^1.4.11"