本文整理汇总了Python中lib2to3.pygram.token.COMMA属性的典型用法代码示例。如果您正苦于以下问题：Python token.COMMA属性的具体用法？Python token.COMMA怎么用？Python token.COMMA使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类lib2to3.pygram.token的用法示例。
在下文中一共展示了token.COMMA属性的3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: parse_args
# 需要导入模块: from lib2to3.pygram import token [as 别名]
# 或者: from lib2to3.pygram.token import COMMA [as 别名]
def parse_args(arglist, scheme):
u"""
Parse a list of arguments into a dict
"""
arglist = [i for i in arglist if i.type != token.COMMA]
ret_mapping = dict([(k, None) for k in scheme])
for i, arg in enumerate(arglist):
if arg.type == syms.argument and arg.children[1].type == token.EQUAL:
# argument < NAME '=' any >
slot = arg.children[0].value
ret_mapping[slot] = arg.children[2]
else:
slot = scheme[i]
ret_mapping[slot] = arg
return ret_mapping
# def is_import_from(node):
# """Returns true if the node is a statement "from ... import ..."
# """
# return node.type == syms.import_from 示例2: parse_args
# 需要导入模块: from lib2to3.pygram import token [as 别名]
# 或者: from lib2to3.pygram.token import COMMA [as 别名]
def parse_args(arglist, scheme):
u"""
Parse a list of arguments into a dict
"""
arglist = [i for i in arglist if i.type != token.COMMA]
ret_mapping = dict([(k, None) for k in scheme])
for i, arg in enumerate(arglist):
if arg.type == syms.argument and arg.children[1].type == token.EQUAL:
# argument < NAME '=' any >
slot = arg.children[0].value
ret_mapping[slot] = arg.children[2]
else:
slot = scheme[i]
ret_mapping[slot] = arg
return ret_mapping
# def is_import_from(node):
# """Returns true if the node is a statement "from ... import ..."
# """
# return node.type == syms.import_from 示例3: has_metaclass
# 需要导入模块: from lib2to3.pygram import token [as 别名]
# 或者: from lib2to3.pygram.token import COMMA [as 别名]
def has_metaclass(parent):
results = None
for node in parent.children:
kids = node.children
if node.type == syms.argument:
if kids[0] == Leaf(token.NAME, u"metaclass") and \
kids[1] == Leaf(token.EQUAL, u"=") and \
kids[2]:
#Hack to avoid "class X(=):" with this case.
results = [node] + kids
break
elif node.type == syms.arglist:
# Argument list... loop through it looking for:
# Node(*, [*, Leaf(token.NAME, u"metaclass"), Leaf(token.EQUAL, u"="), Leaf(*, *)]
for child in node.children:
if results: break
if child.type == token.COMMA:
#Store the last comma, which precedes the metaclass
comma = child
elif type(child) == Node:
meta = equal = name = None
for arg in child.children:
if arg == Leaf(token.NAME, u"metaclass"):
#We have the (metaclass) part
meta = arg
elif meta and arg == Leaf(token.EQUAL, u"="):
#We have the (metaclass=) part
equal = arg
elif meta and equal:
#Here we go, we have (metaclass=X)
name = arg
results = (comma, meta, equal, name)
break
return results