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#!/usr/bin/env python3
"""Helper script to read Python configuration from JSON config file.
This script is called from:
- docker/scripts/generate-pypi-package.sh
- docker/scripts/sync_versions.sh
The script is used to read the Python versions from the docker/python_versions.json config file.
"""
import json
import sys
from pathlib import Path
def get_config_path():
"""Get the path to the python_versions.json config file."""
script_dir = Path(__file__).parent
# Config is now at docker root
config_path = script_dir.parent / "python_versions.json"
return config_path
def main():
if len(sys.argv) != 2:
print("Usage: python read_python_config.py <key>", file=sys.stderr)
print("Available keys: default_versions (derived), supported_versions", file=sys.stderr)
sys.exit(1)
key = sys.argv[1]
config_path = get_config_path()
if not config_path.exists():
print(f"Error: Config file not found at {config_path}", file=sys.stderr)
sys.exit(1)
try:
with open(config_path, 'r') as f:
config = json.load(f)
# Handle default_versions by deriving from supported_versions
if key == "default_versions":
if "supported_versions" not in config:
print("Error: supported_versions not found in config", file=sys.stderr)
sys.exit(1)
result = list(config["supported_versions"].keys())
print(",".join(result))
elif key in config:
result = config[key]
if key == "supported_versions":
# Output as JSON for shell parsing
print(json.dumps(result))
else:
print(result)
else:
print(f"Error: Key '{key}' not found in config", file=sys.stderr)
sys.exit(1)
except Exception as e:
print(f"Error reading config: {e}", file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()
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