New submission from Devin Jeanpierre <[email protected]>:
tokenize only deals with bytes. Users might want to deal with unicode source
(for example, if python source is embedded into a document with an
already-known encoding).
The naive approach might be something like:
def my_readline():
return my_oldreadline().encode('utf-8')
But this doesn't work for python source that declares its encoding, which might
be something other than utf-8. The only safe ways are to either manually add a
coding line yourself (there are lots of ways, I picked a dumb one):
def my_readline_safe(was_read=[]):
if not was_read:
was_read.append(True)can
return b'# coding: utf-8'
return my_oldreadline().encode('utf-8')
tokenstream = tokenize.tokenize(my_readline_safe)
Or to use the same my_readline as before (no added coding line), but instead of
passing it to tokenize.tokenize, you could pass it to the undocumented
_tokenize function:
tokenstream = tokenize._tokenize(my_readline, 'utf-8')
Or, ideally, you'd just pass the original readline that produces unicode into a
utokenize function:
tokenstream = tokenize.utokenize(my_oldreadline)
----------
components: Library (Lib)
messages: 139733
nosy: Devin Jeanpierre
priority: normal
severity: normal
status: open
title: tokenize module should have a unicode API
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Python tracker <[email protected]>
<http://bugs.python.org/issue12486>
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