Merged revisions 68197 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r68197 | benjamin.peterson | 2009-01-03 10:34:02 -0600 (Sat, 03 Jan 2009) | 55 lines

  Merged revisions 67900-67901,67919,67928,67984,67991-67993,68106-68108,68110 via svnmerge from
  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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Lib/lib2to3/fixes/fix_execfile.py

@@ -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())