When I look at a variable in Python, say, p, to take an example from the code shown in the Python documentation, there is no way to tell what p is. Is it an array? A dictionary? A tuple? Something else? With Perl I get more information just by looking at the variable. That makes it more readable.

Python, on the other hand, is still very nice. Maybe one of these days it will get me, especially if the libraries grow to match the breadth of CPAN.