如何在 Python 中将元组转换为字符串?
问题描述：
在 MySQL select 语句之后，我剩下以下内容:
After a MySQL select statement, I am left with the following:
set([('1@a.com',), ('2@b.net',), ('3@c.com',), ('4@d.com',), ('5@e.com',), ('6@f.net',), ('7@h.net',), ('8@g.com',)])
我想要的是一个
emaillist = "\n".join(queryresult)
到最后，有一个字符串:
to in the end, have a string:
1@a.com
2@b.net
3@c.com
etc
将此嵌套元组转换为字符串的正确方法是什么?
What would be the proper way to convert this nested tuple into string?
答
只要您确定每个元组只有一个元素:
As long as you're sure you have just one element per tuple:
'\n'.join(elem[0] for elem in queryresult)