Enable pylint checks (#4092)

* pylint: enable checks for imports

* ci: add github action for pylint

* enable pylint on pre-commit

* Install requirements

* use local pylint installation rather than of pre-commit's

* fix import errors

* more checks

* Silence unused imports

* Make a copy of dict

scripts/hooks/hook-google.cloud.storage.py

@@ -1,4 +1,6 @@
-from PyInstaller.utils.hooks import copy_metadata
+from PyInstaller.utils.hooks import (  # pylint:disable=import-error
+    copy_metadata,
+)
 
 datas = copy_metadata("google-cloud-storage")
 

scripts/hooks/hook-google_compute_engine.logger.py

@@ -1,4 +1,6 @@
-from PyInstaller.utils.hooks import copy_metadata
+from PyInstaller.utils.hooks import (  # pylint:disable=import-error
+    copy_metadata,
+)
 
 datas = copy_metadata("google-compute-engine")
 hiddenimports = ["google_cloud_engine"]

scripts/hooks/hook-pydrive2.py

@@ -1,4 +1,6 @@
-from PyInstaller.utils.hooks import copy_metadata
+from PyInstaller.utils.hooks import (  # pylint:disable=import-error
+    copy_metadata,
+)
 
 datas = copy_metadata("pydrive2")
 datas += copy_metadata("google-api-python-client")