On 12/28/20 10:46 AM, Marco Sulla wrote: > On 2020年12月28日 at 17:37, Bischoop <Bischoop at vimart.net> wrote: >>>> I'd like to check if there's "@" in a string and wondering if any method >> is better/safer than others. I was told on one occasion that I should >> use is than ==, so how would be on this example. >>>> s = 'this at mail.is' >> You could do simply >> if "@" in s: >> but probably what you really want is a regular expression. https://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/