"""
For the ``future`` package.
A special fixer that ensures that these lines have been added::
from future import standard_library
standard_library.install_hooks()
even if the only module imported was ``urllib``, in which case the regular fixer
wouldn't have added these lines.
"""
from lib2to3.fixes.fix_urllib import FixUrllib
from libfuturize.fixer_util import touch_import_top, find_root
class FixFutureStandardLibraryUrllib(FixUrllib): # not a subclass of FixImports
run_order = 8
def transform(self, node, results):
# transform_member() in lib2to3/fixes/fix_urllib.py breaks node so find_root(node)
# no longer works after the super() call below. So we find the root first:
root = find_root(node)
result = super(FixFutureStandardLibraryUrllib, self).transform(node, results)
# TODO: add a blank line between any __future__ imports and this?
touch_import_top(u'future', u'standard_library', root)
return result
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