Fixed linter errors

Latest changes regarding type hints introduced linter errors.
Also adapt the workflow run which is expected to detect them

.github/workflows/ci-code-style.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["3.6", "3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10"]
 
     steps:
       - uses: actions/checkout@v2
@@ -23,7 +23,7 @@ jobs:
       - name: Install Tox
         run: |
           python -m pip install --upgrade pip
-          python -m pip install tox==3.28.0
+          python -m pip install tox
       - name: Run code checks
         run: |
           tox -e check

.github/workflows/ci-units-types.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["3.6", "3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10"]
 
     steps:
       - uses: actions/checkout@v2
@@ -23,7 +23,7 @@ jobs:
       - name: Install Tox
         run: |
           python -m pip install --upgrade pip
-          python -m pip install tox==3.28.0
+          python -m pip install tox
       - name: Run unit and type tests
         run: |
           tox -e unit_py3_6,unit_py3_8,unit_py3_9,unit_py3_10

kiwi/container/base.py

@@ -24,4 +24,4 @@ def create(
         self, filename: str, base_image: str,
         ensure_empty_tmpdirs: bool, compress_archive: bool = False
     ) -> str:
-        pass # pragma: no cover
+        pass  # pragma: no cover

kiwi/container/oci.py

@@ -20,9 +20,9 @@
 import sys
 from typing import Dict, List, Optional
 if sys.version_info >= (3, 8):
-    from typing import TypedDict # pragma: no cover
-else: # pragma: no cover
-    from typing_extensions import TypedDict # pragma: no cover
+    from typing import TypedDict  # pragma: no cover
+else:  # pragma: no cover
+    from typing_extensions import TypedDict  # pragma: no cover
 
 # project
 from kiwi.utils.compress import Compress
@@ -119,7 +119,6 @@ def __init__(self, root_dir: str, transport: str, custom_args: Optional[OciConfi
             self.oci_config['history']['created_by'] = \
                 Defaults.get_default_container_created_by()
 
-
     def create(
         self, filename: str, base_image: str,
         ensure_empty_tmpdirs: bool = True, compress_archive: bool = False

kiwi/path.py

@@ -223,9 +223,10 @@ def rebase_to_root(root: str, elements: List[str]) -> List[str]:
 
     @staticmethod
     def which(
-        filename: str, alternative_lookup_paths: Optional[List[str]]=None,
-        custom_env: Optional[Dict[str, str]]=None, access_mode: Optional[int]=None,
-        root_dir: Optional[str]=None
+        filename: str, alternative_lookup_paths: Optional[List[str]] = None,
+        custom_env: Optional[Dict[str, str]] = None,
+        access_mode: Optional[int] = None,
+        root_dir: Optional[str] = None
     ) -> Optional[str]:
         """
         Lookup file name in PATH

kiwi/utils/compress.py

@@ -44,7 +44,9 @@ class Compress:
     :param str uncompressed_filename:
         Uncompressed file name path
     """
-    def __init__(self, source_filename: str, keep_source_on_compress: bool=False) -> None:
+    def __init__(
+        self, source_filename: str, keep_source_on_compress: bool = False
+    ) -> None:
         if not os.path.exists(source_filename):
             raise KiwiFileNotFound(
                 'compression source file %s not found' % source_filename
@@ -57,7 +59,7 @@ def __init__(self, source_filename: str, keep_source_on_compress: bool=False) ->
         self.compressed_filename: Optional[str] = None
         self.uncompressed_filename: Optional[str] = None
 
-    def xz(self, options: Optional[List[str]]=None) -> str:
+    def xz(self, options: Optional[List[str]] = None) -> str:
         """
         Create XZ compressed file
 
@@ -89,7 +91,7 @@ def gzip(self) -> str:
         self.compressed_filename = self.source_filename + '.gz'
         return self.compressed_filename
 
-    def uncompress(self, temporary: bool=False) -> str:
+    def uncompress(self, temporary: bool = False) -> str:
         """
         Uncompress with format autodetection