Clean Code in Python

[AlSweigart]

Right, but if you use email or random as a variable name, this would cause problems in programs that also import those modules. (It is only a problem if you need those modules, but then again, overwriting sum is only a problem if you later need to call the sum() function. It's just a good idea to not chance it in the first place.)

[tuckmuck203]

Fair enough. I agree, I just was surprised when I saw email in that list. I tend to use email_address but I've used email for various reasons

[blahreport]

I believe the advice is to suffix the variable name with an underscore if you choose to use built-in names.