我可能忽略了一些东西,但是我得到了一个带有函数“getallegates”的类“parse”。在主脚本中,我使用
from parseXML import parse.
那我就知道了
^{pr2}$效果很好。但当我这么做的时候
print parseXML.parse(file).getAllElements()
我得到以下错误:
NameError: global name 'getAllElements' is not defined
下面是代码。我哪里出错了?在
编辑:在注释后更改代码
class parse:
# Constructor
def __init__(self, file):
# parse the xml file into a tree
tree = xml.parse('/homes/ndeklein/test.featureXML')
# Get the root node of the xml file
self.rootElement = tree.getroot()
# Set self.parent to rootElement, because the first element won't have a parent (because it is the root)
self.parent = 'rootElement'
# dictionary that contains the parent -> child relation
self.parentChildDict = {}
# Go recursively through all the elements in the xml file, starting at the choosen rootElement, until only leaves (elements that don't contain elements) are left
# Return all the elements from the xml file
def getAllElements(self):
# if this is the first time this parent is seen:
# make elementDict with parent as key and child as value in a list
if not self.parentChildDict.has_key(self.parent):
self.parentChildDict[self.parent] = [self.rootElement]
# else: add the child to the parent dictionary
else:
self.parentChildDict[self.parent].append(self.rootElement)
for node in self.rootElement:
# if the len of rootElement > 0 (there are more elements in the element):
# set self.parent to be node and recursively call getAllElements
if len(self.rootElement) > 0:
self.parent = node
getAllElements()
return self.parentChildDict
一。在
#!/usr/bin/env python
# author: ndeklein
# date: 08/02/2012
# function: calls out the script
import parseXML
import xml.etree.cElementTree as xml
import sys
#Parse XML directly from the file path
file = '/homes/ndeklein/EP-B1.featureXML'
# parse the xml file into a tree
print parseXML.parse(file).getAllElements()
正如Praveen所暗示的,这是你的要义和通话风格。在
因为您以这种方式导入:
您不需要(事实上也不应该)在调用中显式声明foo。在
^{pr2}$不是
所以在你的情况下,试着打电话:
但您仍然需要在递归中处理裸调用: getAllegements()可能应该自我等位基因()
看起来
parseXML
不在本地命名空间中,因为您正在执行from parseXML import parse
。您是否尝试直接导入parseXML
并执行此操作?在因为不能在方法内部调用
getAllElements()
,所以会得到NameError。它必须是self.getAllElements()
。在正如注释中提到的,代码中还有其他逻辑错误需要您更正。在
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