Reduce testing and minor fixes (#898)

Author: mauvilsa

.github/workflows/tests.yaml

@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
@@ -73,7 +73,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
@@ -88,7 +88,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.10", "3.12", "3.14"]
+        python: ["3.12", "3.14"]
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-python@v6

jsonargparse/_common.py

@@ -487,10 +487,6 @@ def debug_mode_active() -> bool:
     return get_env_var_bool("JSONARGPARSE_DEBUG")
 
 
-if debug_mode_active():
-    os.environ["LOGGER_LEVEL"] = "DEBUG"  # pragma: no cover
-
-
 # base classes
 
 

jsonargparse/_core.py

@@ -1633,8 +1633,7 @@ def env_prefix(self, env_prefix: Union[bool, str]):
 
     @property
     def parser_mode(self) -> str:
-        """Mode for parsing configuration files: ``yaml``, ``json``, ``jsonnet`` or ones added via
-        :func:`.set_loader`.
+        """Mode for parsing config files, ``yaml``, ``json``, ``jsonnet`` or ones added via :func:`.set_loader`.
 
         :getter: Returns the current parser mode.
         :setter: Sets the parser mode.