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dropbox / pyannotate

Auto-generate PEP-484 annotations
Apache License 2.0
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Traceback when type_info.json not found #68

Closed gvanrossum closed 6 years ago

gvanrossum commented 6 years ago

E.g.

$ pyannotate foo
Traceback (most recent call last):
  File "/usr/local/bin/pyannotate", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.4/site-packages/pyannotate_tools/annotations/__main__.py", line 92, in main
    data = generate_annotations_json_string(infile)  # type: List[Any]
  File "/usr/local/lib/python3.4/site-packages/pyannotate_tools/annotations/main.py", line 51, in generate_annotations_json_string
    items = parse_json(source_path)
  File "/usr/local/lib/python3.4/site-packages/pyannotate_tools/annotations/parse.py", line 102, in parse_json
    with open(path) as f:
FileNotFoundError: [Errno 2] No such file or directory: 'type_info.json'
$

This should give a proper error message e.g. "Raw type info file 'type_info.json' not found" instead of a traceback.