Fixed issue with list providers

README.md

@@ -44,7 +44,7 @@ cd python-gpt-po
 python3 -m venv .venv
 source .venv/bin/activate
 pip install -r requirements.txt
-python -m python_gpt_po.main --folder test --lang nl --bulk --provider="deepseek" --list-models
+python -m python_gpt_po.main --provider="deepseek" --list-models
 ```
 
 ## API Key Configuration
@@ -96,6 +96,8 @@ For a detailed explanation of all available parameters and a deep dive into the
 - `--bulk`: Enable bulk translation mode.
 - `--bulksize`: Set the number of entries per bulk translation (default is 50).
 - `--model`: Specify the translation model (defaults are provider-specific).
+- `--provider`: Specify the AI provider (openai, anthropic, or deepseek).
+- `--list-models`: List available models for the selected provider. This is the only command that can be used without `--folder` and `--lang`.
 - `--api_key`: API key for translation; can also be provided via environment variable.
 - `--folder-language`: Infer the target language from the folder structure.
 
@@ -186,7 +188,7 @@ docker run -v $(pwd):/data -e OPENAI_API_KEY="your_key" ghcr.io/pescheckit/pytho
 # Use a specific Python version (3.12)
 docker run -v $(pwd):/data -e OPENAI_API_KEY="your_key" ghcr.io/pescheckit/python-gpt-po:latest-py3.12 --folder /data --lang fr
 
-# List available models
+# List available models (no need for --folder or --lang)
 docker run -e OPENAI_API_KEY="your_key" ghcr.io/pescheckit/python-gpt-po:latest --provider openai --list-models
 ```
 

docker-entrypoint.sh

@@ -27,6 +27,9 @@ if [ $# -eq 0 ]; then
   echo "  # MacOS example"
   echo "  docker run -v /Users/username/Documents/translations:/input -e OPENAI_API_KEY=<your_key> ghcr.io/pescheckit/python-gpt-po --folder /input --lang fr,es"
   echo
+  echo "  # List available models (no need for --folder or --lang)"
+  echo "  docker run -e OPENAI_API_KEY=<your_key> ghcr.io/pescheckit/python-gpt-po --provider openai --list-models"
+  echo
   echo "For full documentation, visit: https://github.com/pescheckit/python-gpt-po"
   exit 0
 fi

docs/usage.md

@@ -139,8 +139,8 @@ Below is a detailed explanation of all command-line arguments:
   *Behind the scenes:* The chosen model is passed along to the provider’s API calls. If the model is not available, a warning is logged and the default is used.
 
 - **`--list-models`**  
-  *Description:* Lists all available models for the selected provider and exits without processing any files.  
-  *Behind the scenes:* Makes a test API call to retrieve a list of models and prints them to the console.
+  *Description:* Lists all available models for the selected provider and exits without processing any files. This is the only command that doesn't require `--folder` and `--lang` parameters.  
+  *Behind the scenes:* Makes a test API call to retrieve a list of models and prints them to the console. When this flag is provided, the CLI parser automatically makes the usually required parameters optional.
 
 - **`--openai-key`**  
   *Description:* Provides the OpenAI API key directly as a command-line argument (alternative to using `--api_key` or the environment variable).  

python_gpt_po/utils/cli.py

@@ -36,21 +36,28 @@ def parse_args():
     Returns:
         argparse.Namespace: Parsed arguments
     """
+    # First pass - check if list-models is in args
+    # This allows us to make folder and lang not required when listing models
+    list_models_present = False
+    for arg in sys.argv:
+        if arg in ("--list-models", "--version"):
+            list_models_present = True
+            break
     parser = CustomArgumentParser(
         description="Translate .po files using AI language models",
         epilog="""
 Examples:
   # Basic usage with OpenAI
-  python po_translator.py --folder ./locales --lang fr,es,de
+  gpt-po-translator --folder ./locales --lang fr,es,de
 
   # Use Anthropic with detailed language names
-  python po_translator.py --folder ./i18n --lang nl,de --detail-lang "Dutch,German" --provider anthropic
+  gpt-po-translator --folder ./i18n --lang nl,de --detail-lang "Dutch,German" --provider anthropic
 
-  # List available models for a provider
-  python po_translator.py --provider deepseek --list-models
+  # List available models for a provider (no need for --folder or --lang)
+  gpt-po-translator --provider deepseek --list-models
 
   # Process multiple translations in bulk with a specific model
-  python po_translator.py --folder ./locales --lang ja,ko --bulk --model gpt-4
+  gpt-po-translator --folder ./locales --lang ja,ko --bulk --model gpt-4
 """,
         formatter_class=lambda prog: argparse.RawDescriptionHelpFormatter(prog, max_help_position=35, width=100)
     )
@@ -62,16 +69,16 @@ def parse_args():
     api_group = parser.add_argument_group('API Keys')
     advanced_group = parser.add_argument_group('Advanced Options')
 
-    # Required arguments
+    # Required arguments (not required if listing models)
     required_group.add_argument(
         "-f", "--folder",
-        required=True,
+        required=(not list_models_present),
         metavar="FOLDER",
         help="Input folder containing .po files"
     )
     required_group.add_argument(
         "-l", "--lang",
-        required=True,
+        required=(not list_models_present),
         metavar="LANG",
         help="Comma-separated language codes to translate (e.g., fr,es,de)"
     )