Mercurial > repos > shellac > guppy_basecaller

comparison env/lib/python3.7/site-packages/libfuturize/fixes/fix_bytes.py @ 2:6af9afd405e9 draft

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"planemo upload commit 0a63dd5f4d38a1f6944587f52a8cd79874177fc1"
author shellac
date Thu, 14 May 2020 14:56:58 -0400
parents 26e78fe6e8c4
children
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1:75ca89e9b81c 2:6af9afd405e9
1 """Optional fixer that changes all unprefixed string literals "..." to b"...".
2
3 br'abcd' is a SyntaxError on Python 2 but valid on Python 3.
4 ur'abcd' is a SyntaxError on Python 3 but valid on Python 2.
5
6 """
7 from __future__ import unicode_literals
8
9 import re
10 from lib2to3.pgen2 import token
11 from lib2to3 import fixer_base
12
13 _literal_re = re.compile(r"[^bBuUrR]?[\'\"]")
14
15 class FixBytes(fixer_base.BaseFix):
16 BM_compatible = True
17 PATTERN = "STRING"
18
19 def transform(self, node, results):
20 if node.type == token.STRING:
21 if _literal_re.match(node.value):
22 new = node.clone()
23 new.value = u'b' + new.value
24 return new