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GetElement example with findall and search in python3

Last updated at 2021-05-17Posted at 2021-05-16

source

import re

def getElement(src, name, attribute=""):
    e = ""
    print("==findall==")
    ret = re.findall('<'+name+"(>| [^>]+>)([^<]+)<", src, re.S)
    print(ret)
    if ret[0:1]:
        ret = ret[0:1]
        print(ret)
        for i in range(len(ret)):
            print(ret[i])
            print(ret[i][1])
    print("==search==")
    ret = re.search('<'+name+"(>| [^>]+>)([^<]+)<", src, re.S)
    if ret:
        print(ret.group(2))
    else:
        print("could not search")
    #print(ret.groups(),ret.group(1),ret.group(2))

str = """
<span>333</span><a href="/entry" title="タイトル" class=entry-page" label="entry-info"><span>615</span>favs</a>
"""

getElement(str, "span")

result

==findall==
[('>', '333'), ('>', '615')]
[('>', '333')]
('>', '333')
333
==search==
333

memo

findallはタプルのリストがかえる。
groupを使う場合、if ... is not None を使って判定する。

GetElement example with findall and search in python3

source

result

memo

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