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tabnanny -- Detection of ambiguous indentation
For the time being this module is intended to be called as a script.
However it is possible to import it into an IDE and use the function
check() described below.
Warning: The API provided by this module is likely to change in future
releases; such changes may not be backward compatible.
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Raised by process_tokens() if detecting an ambiguous indent.
Captured and handled in check().
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written to standard output using the print statement.
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