Like any other language or tool, Python has some best practices to follow before, during, and after the process of writing your code. These make the code readable and create a standard across the industry. Other developers working on the project should be able to read and understand your code.
This 'cheat sheet' is a handy reference, meant for beginning Perl programmers. Not everything is mentioned, but 194 features may already be overwhelming.http://search.cpan.org/~nwclark/perl-5.8.7/pod/perlcheat.pod