fix_execfile.py
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# coding: utf-8
"""
Fixer for the execfile() function on Py2, which was removed in Py3.
The Lib/lib2to3/fixes/fix_execfile.py module has some problems: see
python-future issue #37. This fixer merely imports execfile() from
past.builtins and leaves the code alone.
Adds this import line::
from past.builtins import execfile
for the function execfile() that was removed from Py3.
"""
from __future__ import unicode_literals
from lib2to3 import fixer_base
from libfuturize.fixer_util import touch_import_top
expression = "name='execfile'"
class FixExecfile(fixer_base.BaseFix):
BM_compatible = True
run_order = 9
PATTERN = """
power<
({0}) trailer< '(' args=[any] ')' >
rest=any* >
""".format(expression)
def transform(self, node, results):
name = results["name"]
touch_import_top(u'past.builtins', name.value, node)