44 lines
1.3 KiB
Python
Executable file
44 lines
1.3 KiB
Python
Executable file
#!/usr/bin/env python
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import ast
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import sys
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def main():
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for path in sys.argv[1:] or sys.stdin.read().splitlines():
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with open(path, 'rb') as path_fd:
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lines = path_fd.read().splitlines()
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missing = True
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if not lines:
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# Files are allowed to be empty of everything including boilerplate
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missing = False
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for text in lines:
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if text == b'__metaclass__ = type':
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missing = False
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break
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if missing:
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with open(path) as file:
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contents = file.read()
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# noinspection PyBroadException
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try:
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node = ast.parse(contents)
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# files consisting of only assignments have no need for metaclass boilerplate
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# the most likely case is that of a documentation only python file
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if all(isinstance(statement, ast.Assign) for statement in node.body):
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missing = False
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except Exception: # pylint: disable=broad-except
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pass # the compile sanity test will report this error
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if missing:
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print('%s: missing: __metaclass__ = type' % path)
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if __name__ == '__main__':
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main()
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