…is automatic syntax checking. It really sucks to run a Python script for 15 - 30 minutes only to find that you forgot to import a package you need.

Perl and Ruby have the -c option built into the interpreter to check syntax, but both do this as a matter of course before execution in order to catch issues of this nature. Python only has PyChecker which is pretty good, but not as well integrated as Perl or Ruby’s syntax checking.

Just something for other Perl/Ruby-to-Python switchers to keep an eye on, that’s all.