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annotate planemo/lib/python3.7/site-packages/libfuturize/fixes/fix_bytes.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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1 """Optional fixer that changes all unprefixed string literals "..." to b"...".
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2
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3 br'abcd' is a SyntaxError on Python 2 but valid on Python 3.
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4 ur'abcd' is a SyntaxError on Python 3 but valid on Python 2.
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5
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6 """
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7 from __future__ import unicode_literals
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8
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9 import re
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10 from lib2to3.pgen2 import token
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11 from lib2to3 import fixer_base
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12
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13 _literal_re = re.compile(r"[^bBuUrR]?[\'\"]")
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14
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15 class FixBytes(fixer_base.BaseFix):
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16 BM_compatible = True
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17 PATTERN = "STRING"
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18
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19 def transform(self, node, results):
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20 if node.type == token.STRING:
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21 if _literal_re.match(node.value):
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22 new = node.clone()
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23 new.value = u'b' + new.value
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24 return new