Staging
v0.5.1
v0.5.1
swh:1:snp:635f4099902912592851108bcac178ff574f7c5f
Tip revision: 11591c3dda25a4fd27d2ae012972f74d3b8fe578 authored by Benjamin Peterson on 06 June 2010, 00:54:29 UTC
fix sphinx warning with an extra space
fix sphinx warning with an extra space
Tip revision: 11591c3
fix_itertools_imports.py
""" Fixer for imports of itertools.(imap|ifilter|izip|ifilterfalse) """
# Local imports
from lib2to3 import fixer_base
from lib2to3.fixer_util import BlankLine, syms, token
class FixItertoolsImports(fixer_base.BaseFix):
PATTERN = """
import_from< 'from' 'itertools' 'import' imports=any >
""" %(locals())
def transform(self, node, results):
imports = results['imports']
if imports.type == syms.import_as_name or not imports.children:
children = [imports]
else:
children = imports.children
for child in children[::2]:
if child.type == token.NAME:
member = child.value
name_node = child
else:
assert child.type == syms.import_as_name
name_node = child.children[0]
member_name = name_node.value
if member_name in (u'imap', u'izip', u'ifilter'):
child.value = None
child.remove()
elif member_name == u'ifilterfalse':
node.changed()
name_node.value = u'filterfalse'
# Make sure the import statement is still sane
children = imports.children[:] or [imports]
remove_comma = True
for child in children:
if remove_comma and child.type == token.COMMA:
child.remove()
else:
remove_comma ^= True
if children[-1].type == token.COMMA:
children[-1].remove()
# If there are no imports left, just get rid of the entire statement
if not (imports.children or getattr(imports, 'value', None)) or \
imports.parent is None:
p = node.prefix
node = BlankLine()
node.prefix = p
return node