New submission from Gregory P. Smith:
>From a conversion through 2to3:
< default_value=unicode("", "utf-8"),
---
> default_value=str("", "utf-8"),
The Python 2 unicode constructor takes an optional second parameter which is
the codec to use to convert when the first parameter is non-unicode.
2to3 should check the parameters on uses of unicode() and if there is a second
parameter and the first is explicitly b"" bytes it should turn it into
default_value=b"whatever".decode(second_param)
if the first is valid utf-8 and the second is "utf-8" (or its other spellings)
it should leave it as is and simply become:
default_value="thing passed to unicode() that was already utf-8"
----------
messages: 198929
nosy: gregory.p.smith
priority: normal
severity: normal
stage: needs patch
status: open
title: 2to3 incorrectly converts two parameter unicode() constructor to str()
type: behavior
versions: Python 2.7, Python 3.3, Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19159>
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