在 python 的一个循环中查找多个元素

Question

I have to insert a few XML tags into the SQL database.
I am able to get values by the below code. But I have to insert multiple values like created, comments, name, modify, etc. How can I get all in one call and insert it in one statement into SQL?

for element in root.iter('Created'):
    print(element.text)

Answer 1

You have several options:

With itertools.chain() :

tags = ['Created', 'Comments', 'Name', 'Modify']
tag_iterators = [root.iter(tag) for tag in tags]
for element in itertools.chain(*tag_iterators):
    print(element.text)

With iterating through all tags and then filtering:

tags = ['Created', 'Comments', 'Name', 'Modify']
for element in root.iter():
    if element.tag not in tags:
        continue
    print(element.text)

Finally, if you need all the tags, then simply:

for element in root.iter():
    print(element.text)