在 Python 中读取文件时添加额外字符

Question

I try to check if url is equal with url_auth.

    short_url='short.url/001'
    url='five'
    with open("shortener_db",'r',encoding='utf-8') as file:
        for line in file:
            item,url_auth = line.split(",",1)
            if item == short_url:
                shortener(take_url())
            if url_auth == url:
                print(f"""
This url is already in use!
shortener version of this url: {item}""")
                shortener(take_url())
    with open('shortener_db','a',encoding='utf-8') as f2:
        f2.write(short_url)
        f2.write(',')
        f2.write(url)
        f2.write('\n')

I printed both url and url_auth length, url_auth has an extra length.I suppose, python takes \n as an extra character and url becomes.= url_auth,If this is the case, how can I block this from happening or if that's not the case? how can I block this and what is the case: this is the shortener_db file:

short.url/001,five
short.url/002,five

Answer 1

solved by using line = line.strip('\n')