Question

我目前在Python中有一个打开XML文件的程序，遍历标记并将内容打印到文本文件中。

import xml.etree.ElementTree as etree
import xml.etree.ElementTree as ET
import tkFileDialog

#asks for the location of the file to open
file = tkFileDialog.askopenfilename()
#parse in the file
tree = ET.parse(file)
root = tree.getroot()
#asks for the location/name of court file to save as
file = tkFileDialog.asksaveasfilename()
f = open(file, 'w')
f.write("\t\t\tReport: \n\n")

#this prints out all tags and text in the right order 
iter_ = tree.getiterator()
for elem in iter_:
    #print (elem.tag, elem.text)
    f.write("\t")
    f.write(elem.tag)
    f.write(": \t\t")
    f.write(str(elem.text))
    f.write("\n")

f.close()

问题是XML文件中的某些标记没有任何用户输入，因此当程序迭代时，它会将NONE放在空格中，而不是将其留空。

文本文件输出：

Crime Report: 

crime_report:       None
case_number:        090
victim_details:     None
victim_first_name:  j
victim_surname:     j
officer_details:    None
officer_name:       j
officer_ID_number:  j
witness_details:    None    
witness_first_name: j
witness_address:    j

当前XML文件：

<crime_report>
    <case_number caseno="unique identifier associated to the case">090
        <victim_details>
            <victim_first_name>j</victim_first_name>
            <victim_surname>j</victim_surname>
        </victim_details>
        <officer_details>
            <officer_name>j</officer_name>
            <officer_ID_number>j</officer_ID_number>
        </officer_details>
        <witness_details>
            <witness_first_name>j</witness_first_name>
            <witness_address>j</witness_address>
        </witness_details>
    </case_number>
</crime_report>

我无法弄清楚如何迭代，以便这些只是空白，而不是显示NONE？

Python，XML，迭代标记产生NONE值

0 个答案: