IOError:[Errno 2]多个xml文件中没有这样的文件或目录

Question

我的代码：

import xml.etree.ElementTree as ET
import sys

XS = '{http://pubchem.ncbi.nlm.nih.gov/pug_view}'

mols = {'CID_11249995','CID_11249995'}

molstring = str(mols);

tree = ET.fromstring(open('C:/Python27/xml/'+ molstring +'.xml','r'))

root = tree.getroot( )

print(root)

这将产生以下错误：

Traceback (most recent call last): File "C:\Users\HENRY\Desktop\prac1.py", line 6, in tree = ET.fromstring(open('C:/Python27/xml/'+ molstring +'.xml','r')) IOError: [Errno 2] No such file or directory: "C:/Python27/xml/set(['CID_11249995', 'CID_11249995']).xml"

Answer 1

用于从多个xml文件读取数据

mols = {'CID_11249995' , 'CID_11249995'}

for mol in mols:

     tree = ET.parse('tree path' + mol + '.xml')

     root = tree.getroot( )   

     print(root)