小编kon*_*iik的帖子

场景:由于SQL查询,您有一个长元组,并希望将其解压缩为单个值.符合PEP8的最佳方法是什么？到目前为止,我有以下三种选择:

1. 单个赋值,使用反斜杠分割为多行

   person_id, first_name, last_name, email, \
       birth_date, graduation_year, home_street, \
       home_city, home_zip, mail_street, mail_city, \
       mail_zip = row
   

   Run Code Online (Sandbox Code Playgroud)

2. 单个赋值,在parantheses中分组左侧和没有反斜杠的断行

   (person_id, first_name, last_name, email,
       birth_date, graduation_year, home_street,
       home_city, home_zip, mail_street, mail_city,
       mail_zip) = row
   

   Run Code Online (Sandbox Code Playgroud)

3. 分成多个分配,每个分配成一行

   person_id, first_name, last_name, email = row[0:4]
   birth_date, graduation_year, home_street = row[4:7]
   home_city, home_zip, mail_street, mail_city = row[7:11]
   mail_zip = row[11]
   

   Run Code Online (Sandbox Code Playgroud)

三个选项中哪一个最好？有更好的吗？