As someone who spends most of his time working in Python, the section called One nice thing about Ruby’s scoping made me a little bit jealous. I hate the way Python handles default parameters.

Also, I think glyphobet is a little hard on Ruby's range objects. He says:

Python’s xrange() can also be passed around like a variable, but you test for membership with value in myrange instead of ===.

An important difference there is that "value in xrange(10000)" iterates to find the value, while "(1..10000) === value" does something O(1), like 1 <= value < 10000. Range objects are handy, and different from list constructors like range() and generators like xrange(). But I agree that the ".." and "..." syntax is weird.