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I've been using 3 for sometime and I haven't really run into any major issues. The one thing I find very annoying, especially with Eclipse, is that if I the 3 as the interpreter, Eclipse gives a warning for the following statement:
However, I don't see any warnings if I use following print statement:Code:print 'foo'
I'm not sure if this a result of a difference between 2.6 and 3.x or just something within Eclipse.Code:print ('foo')
MIT OpenCourseWare has this Python introduction class. It's a quick way to learn Python.
http://ocw.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-189January--IAP--2010/CourseHome/index.htm
What happened to Perl?!
They started the language re-design, circa 2000, and still haven't delivered, so the language became mostly irrelevant in the meantime (well, Perl advocates will fiercely claim that the new version, Perl 6, is actually usable while ago, and that old version, Perl 5.x, was actually updated regularly along the way, but I think at least the fact that the language is irrelevant these days is undeniable). The opinions about re-designed language were mixed: basically, Perl was already write-only language more or less, and this is even more true with the new version.
I agree that Python or Ruby are gaining ground and they have added exceptional features.
However I wouldn't consider Perl irrelevant. It is used more than any other flavor including Python. A lot of system related programming is still done in Perl. Job-offers on tech sites (e.g. Dice) still require Perl more than the other flavors.
http://news.cnet.com/8301-13505_3-10009669-16.html
http://www.eecs.berkeley.edu/~flab/languages.html
http://www.devtopics.com/most-popular-programming-languages/
Statistics like what you mentioned above are always skewed; besides, these in particular seem rather outdated... When I stated that Perl is irrelevant, I was primarily considering how much newbie programmers are learning the language. Throughout past couple years there were number of computer science departments switching to Python as their first programming language (even MIT switched their famous 6.001 to Python), and the rest of kids get introduced to the language too, in one way or another. On the other side, one would probably going to have hard time to find someone of this age with Perl knowledge; so it's not hard to see where the situation like this is heading in the next 5 to 10 years...