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tokenize(readline) is a generator that breaks a stream of bytes into
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determining source file encoding.
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next line of input (or b"" for EOF). It generates 5-tuples with these
members:
the token type (see token.py)
the token (a string)
the starting (row, column) indices of the token (a 2-tuple of ints)
the ending (row, column) indices of the token (a 2-tuple of ints)
the original line (string)
It is designed to match the working of the Python tokenizer exactly, except
that it produces COMMENT tokens for comments and gives type OP for all
operators. Additionally, all token lists start with an ENCODING token
which tells you which encoding was used to decode the bytes stream.
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token, which is the first token sequence output by tokenize.
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only two tokens are passed, the resulting output is poor.
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The detect_encoding() function is used to detect the encoding that should
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The tokenize() generator requires one argument, readline, which
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readline() method of built-in file objects. Each call to the function
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can be a callable function terminating with StopIteration:
readline = open(myfile, 'rb').__next__ # Example of alternate readline
The generator produces 5-tuples with these members: the token type; the
token string; a 2-tuple (srow, scol) of ints specifying the row and
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ints specifying the row and column where the token ends in the source;
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