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"""Fixer that changes unicode to str, unichr to chr, and u"..." into "...".
"""
import re
from ..pgen2 import token
from .. import fixer_base
class FixUnicode(fixer_base.BaseFix):
PATTERN = "STRING | NAME<'unicode' | 'unichr'>"
def transform(self, node, results):
if node.type == token.NAME:
if node.value == "unicode":
new = node.clone()
new.value = "str"
return new
if node.value == "unichr":
new = node.clone()
new.value = "chr"
return new
# XXX Warn when __unicode__ found?
elif node.type == token.STRING:
if re.match(r"[uU][rR]?[\'\"]", node.value):
new = node.clone()
new.value = new.value[1:]
return new
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