Python3-xml配置文件上的循环
我想用xml构建具有键值的配置文件,并且可以循环键 例如,我有3个学生(id和姓名)Python3-xml配置文件上的循环,python,xml,python-3.x,configuration,Python,Xml,Python 3.x,Configuration,我想用xml构建具有键值的配置文件,并且可以循环键 例如,我有3个学生(id和姓名) 如何将其放在xml配置文件中,以便在python中检查是否有STxx键并获取值?请分享您迄今为止所做的工作。我尝试在文件中进行设置,然后使用您的代码查找student,如root=open('test.txt').read()但我遇到了错误AttributeError:'str'对象没有属性'findall'请参见此处如何将文件加载到XML文档中 import xml.etree.ElementTree a
如何将其放在xml配置文件中,以便在python中检查是否有STxx键并获取值?请分享您迄今为止所做的工作。我尝试在文件
中进行设置,然后使用您的代码查找student,如root=open('test.txt').read()
但我遇到了错误AttributeError:'str'对象没有属性'findall'
请参见此处如何将文件加载到XML文档中
import xml.etree.ElementTree as ET
STUDENTS = [('ST1','Jhone'),('ST5','Pitter'),('ST77','Arik')]
def indent(elem, level=0):
i = "\n" + level*" "
j = "\n" + (level-1)*" "
if len(elem):
if not elem.text or not elem.text.strip():
elem.text = i + " "
if not elem.tail or not elem.tail.strip():
elem.tail = i
for subelem in elem:
indent(subelem, level+1)
if not elem.tail or not elem.tail.strip():
elem.tail = j
else:
if level and (not elem.tail or not elem.tail.strip()):
elem.tail = j
return elem
def find_student_by_id(doc,_id):
arg = ".//student[@id='{}']".format(_id)
return doc.findall(arg)
# build the XML document
root = ET.Element('students')
for student in STUDENTS:
student_element = ET.SubElement(root, 'student')
student_element.set('name',student[1])
student_element.set('id',student[0])
# print the xml document
indent(root)
ET.dump(root)
# search the document by id
student = find_student_by_id(root,'ST1')
# found
print(student)
student = find_student_by_id(root,'ST111')
# not found
print(student)
import xml.etree.ElementTree as ET
STUDENTS = [('ST1','Jhone'),('ST5','Pitter'),('ST77','Arik')]
def indent(elem, level=0):
i = "\n" + level*" "
j = "\n" + (level-1)*" "
if len(elem):
if not elem.text or not elem.text.strip():
elem.text = i + " "
if not elem.tail or not elem.tail.strip():
elem.tail = i
for subelem in elem:
indent(subelem, level+1)
if not elem.tail or not elem.tail.strip():
elem.tail = j
else:
if level and (not elem.tail or not elem.tail.strip()):
elem.tail = j
return elem
def find_student_by_id(doc,_id):
arg = ".//student[@id='{}']".format(_id)
return doc.findall(arg)
# build the XML document
root = ET.Element('students')
for student in STUDENTS:
student_element = ET.SubElement(root, 'student')
student_element.set('name',student[1])
student_element.set('id',student[0])
# print the xml document
indent(root)
ET.dump(root)
# search the document by id
student = find_student_by_id(root,'ST1')
# found
print(student)
student = find_student_by_id(root,'ST111')
# not found
print(student)