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Merged revisions 67900-67901,67919,67928,67984,67991-67993,68106-68108,68110 via svnmerge from

Browse source 
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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  r67900 | benjamin.peterson | 2008-12-22 14:02:45 -0600 (Mon, 22 Dec 2008) | 4 lines

  fix_execfile: wrap the open(fn).read() call in compile(), so the filename is preserved

  also add unittests for the fixer
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  r67901 | benjamin.peterson | 2008-12-22 14:09:55 -0600 (Mon, 22 Dec 2008) | 1 line

  remove unused import
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  r67919 | benjamin.peterson | 2008-12-23 13:12:22 -0600 (Tue, 23 Dec 2008) | 1 line

  copy permission bits from the backup to the original
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  r67928 | benjamin.peterson | 2008-12-26 20:49:30 -0600 (Fri, 26 Dec 2008) | 1 line

  don't be so idiot about multiple local imports in fix_import; still won't handle absolute and local imports on the same line
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  r67984 | benjamin.peterson | 2008-12-28 09:55:16 -0600 (Sun, 28 Dec 2008) | 1 line

  don't need loop
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  r67991 | benjamin.peterson | 2008-12-28 14:30:26 -0600 (Sun, 28 Dec 2008) | 1 line

  actually call finish_tree()
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  r67992 | benjamin.peterson | 2008-12-28 14:34:47 -0600 (Sun, 28 Dec 2008) | 1 line

  remove useless test
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  r67993 | benjamin.peterson | 2008-12-28 15:04:32 -0600 (Sun, 28 Dec 2008) | 1 line

  update pyk3's test grammar
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  r68106 | benjamin.peterson | 2008-12-31 11:53:58 -0600 (Wed, 31 Dec 2008) | 1 line

  #2734 don't convert every instance of long (eg if it's an attribute)
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  r68107 | benjamin.peterson | 2008-12-31 11:55:10 -0600 (Wed, 31 Dec 2008) | 1 line

  add another test
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  r68108 | benjamin.peterson | 2008-12-31 12:00:12 -0600 (Wed, 31 Dec 2008) | 1 line

  don't change long even if it's the only argument name
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  r68110 | benjamin.peterson | 2008-12-31 14:13:26 -0600 (Wed, 31 Dec 2008) | 1 line

  remove unused import
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This commit is contained in:
Benjamin Peterson 2009-01-03 16:34:02 +00:00
parent edd7d95581
commit 37fc82348c
9 changed files with 199 additions and 59 deletions
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28
Lib/lib2to3/fixes/fix_execfile.py
View file

@ -7,9 +7,9 @@ This converts usages of the execfile function into calls to the built-in
exec() function.
"""
from .. import pytree
from .. import fixer_base
from ..fixer_util import Comma, Name, Call, LParen, RParen, Dot
from ..fixer_util import (Comma, Name, Call, LParen, RParen, Dot, Node,
ArgList, String, syms)
class FixExecfile(fixer_base.BaseFix):
@ -22,16 +22,30 @@ class FixExecfile(fixer_base.BaseFix):
def transform(self, node, results):
assert results
syms = self.syms
filename = results["filename"]
globals = results.get("globals")
locals = results.get("locals")
args = [Name('open'), LParen(), filename.clone(), RParen(), Dot(),
Name('read'), LParen(), RParen()]
args[0].set_prefix("")
# Copy over the prefix from the right parentheses end of the execfile
# call.
execfile_paren = node.children[-1].children[-1].clone()
# Construct open().read().
open_args = ArgList([filename.clone()], rparen=execfile_paren)
open_call = Node(syms.power, [Name("open"), open_args])
read = [Node(syms.trailer, [Dot(), Name('read')]),
Node(syms.trailer, [LParen(), RParen()])]
open_expr = [open_call] + read
# Wrap the open call in a compile call. This is so the filename will be
# preserved in the execed code.
filename_arg = filename.clone()
filename_arg.set_prefix(" ")
exec_str = String("'exec'", " ")
compile_args = open_expr + [Comma(), filename_arg, Comma(), exec_str]
compile_call = Call(Name("compile"), compile_args, "")
# Finally, replace the execfile call with an exec call.
args = [compile_call]
if globals is not None:
args.extend([Comma(), globals.clone()])
if locals is not None:
args.extend([Comma(), locals.clone()])
return Call(Name("exec"), args, prefix=node.get_prefix())