本文整理汇总了Python中lib2to3.fixer_util.FromImport方法的典型用法代码示例。如果您正苦于以下问题：Python fixer_util.FromImport方法的具体用法？Python fixer_util.FromImport怎么用？Python fixer_util.FromImport使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类lib2to3.fixer_util的用法示例。
在下文中一共展示了fixer_util.FromImport方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_is_shebang_comment
# 需要导入模块: from lib2to3 import fixer_util [as 别名]
# 或者: from lib2to3.fixer_util import FromImport [as 别名]
def test_is_shebang_comment(self):
"""
Tests whether the fixer_util.is_encoding_comment() function is working.
"""
shebang_comments = [u'#!/usr/bin/env python\n'
u"#!/usr/bin/python2\n",
u"#! /usr/bin/python3\n",
]
not_shebang_comments = [u"# I saw a giant python\n",
u"# I have never seen a python2\n",
]
for comment in shebang_comments:
node = FromImport(u'math', [Leaf(token.NAME, u'cos', prefix=" ")])
node.prefix = comment
self.assertTrue(is_shebang_comment(node))
for comment in not_shebang_comments:
node = FromImport(u'math', [Leaf(token.NAME, u'cos', prefix=" ")])
node.prefix = comment
self.assertFalse(is_shebang_comment(node)) 示例2: test_is_encoding_comment
# 需要导入模块: from lib2to3 import fixer_util [as 别名]
# 或者: from lib2to3.fixer_util import FromImport [as 别名]
def test_is_encoding_comment(self):
"""
Tests whether the fixer_util.is_encoding_comment() function is working.
"""
encoding_comments = [u"# coding: utf-8",
u"# encoding: utf-8",
u"# -*- coding: latin-1 -*-",
u"# vim: set fileencoding=iso-8859-15 :",
]
not_encoding_comments = [u"# We use the file encoding utf-8",
u"coding = 'utf-8'",
u"encoding = 'utf-8'",
]
for comment in encoding_comments:
node = FromImport(u'math', [Leaf(token.NAME, u'cos', prefix=" ")])
node.prefix = comment
self.assertTrue(is_encoding_comment(node))
for comment in not_encoding_comments:
node = FromImport(u'math', [Leaf(token.NAME, u'cos', prefix=" ")])
node.prefix = comment
self.assertFalse(is_encoding_comment(node)) 示例3: transform
# 需要导入模块: from lib2to3 import fixer_util [as 别名]
# 或者: from lib2to3.fixer_util import FromImport [as 别名]
def transform(self, node, results):
"""
Copied from FixImport.transform(), but with this line added in
any modules that had implicit relative imports changed:
from __future__ import absolute_import"
"""
if self.skip:
return
imp = results['imp']
if node.type == syms.import_from:
# Some imps are top-level (eg: 'import ham')
# some are first level (eg: 'import ham.eggs')
# some are third level (eg: 'import ham.eggs as spam')
# Hence, the loop
while not hasattr(imp, 'value'):
imp = imp.children[0]
if self.probably_a_local_import(imp.value):
imp.value = u"." + imp.value
imp.changed()
future_import(u"absolute_import", node)
else:
have_local = False
have_absolute = False
for mod_name in traverse_imports(imp):
if self.probably_a_local_import(mod_name):
have_local = True
else:
have_absolute = True
if have_absolute:
if have_local:
# We won't handle both sibling and absolute imports in the
# same statement at the moment.
self.warning(node, "absolute and local imports together")
return
new = FromImport(u".", [imp])
new.prefix = node.prefix
future_import(u"absolute_import", node)
return new 示例4: new_future_import
# 需要导入模块: from lib2to3 import fixer_util [as 别名]
# 或者: from lib2to3.fixer_util import FromImport [as 别名]
def new_future_import(self, old):
new = FromImport("__future__",
[Name("absolute_import", prefix=" "), Comma(),
Name("division", prefix=" "), Comma(),
Name("print_function", prefix=" "), Comma(),
Name("with_statement", prefix=" ")])
if old is not None:
new.prefix = old.prefix
return new 示例5: new_future_import
# 需要导入模块: from lib2to3 import fixer_util [as 别名]
# 或者: from lib2to3.fixer_util import FromImport [as 别名]
def new_future_import(self, old):
new = FromImport("__future__",
[Name("absolute_import", prefix=" "), Comma(),
Name("division", prefix=" "), Comma(),
Name("with_statement", prefix=" ")])
if old is not None:
new.prefix = old.prefix
return new