Mercurial > cpython-lru_cache-weakref

annotate Lib/lib2to3/fixes/fix_exec.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 119e4323400d
children 7700408f65fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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302625fa6a2a Import lib2to3.
Martin v. Löwis <martin@v.loewis.de>
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1 # Copyright 2006 Google, Inc. All Rights Reserved.
302625fa6a2a Import lib2to3.
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2 # Licensed to PSF under a Contributor Agreement.
302625fa6a2a Import lib2to3.
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3
302625fa6a2a Import lib2to3.
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4 """Fixer for exec.
302625fa6a2a Import lib2to3.
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5
302625fa6a2a Import lib2to3.
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6 This converts usages of the exec statement into calls to a built-in
302625fa6a2a Import lib2to3.
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7 exec() function.
302625fa6a2a Import lib2to3.
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8
302625fa6a2a Import lib2to3.
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9 exec code in ns1, ns2 -> exec(code, ns1, ns2)
302625fa6a2a Import lib2to3.
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10 """
302625fa6a2a Import lib2to3.
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11
302625fa6a2a Import lib2to3.
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12 # Local imports
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13 from .. import pytree
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14 from .. import fixer_base
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15 from ..fixer_util import Comma, Name, Call
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16
302625fa6a2a Import lib2to3.
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17
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18 class FixExec(fixer_base.BaseFix):
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302625fa6a2a Import lib2to3.
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19
302625fa6a2a Import lib2to3.
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20 PATTERN = """
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21 exec_stmt< 'exec' a=any 'in' b=any [',' c=any] >
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22 |
302625fa6a2a Import lib2to3.
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23 exec_stmt< 'exec' (not atom<'(' [any] ')'>) a=any >
302625fa6a2a Import lib2to3.
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24 """
302625fa6a2a Import lib2to3.
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25
302625fa6a2a Import lib2to3.
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26 def transform(self, node, results):
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27 assert results
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28 syms = self.syms
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29 a = results["a"]
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30 b = results.get("b")
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31 c = results.get("c")
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32 args = [a.clone()]
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33 args[0].set_prefix("")
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34 if b is not None:
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35 args.extend([Comma(), b.clone()])
302625fa6a2a Import lib2to3.
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36 if c is not None:
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37 args.extend([Comma(), c.clone()])
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38
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39 return Call(Name(u"exec"), args, prefix=node.get_prefix())