Take Python, add ";" and "auto", get 140x speed up ;)

[thedeemon]

Just a bit of evangelism.

Original post of drawing Ulam's spiral of primes:
http://users.softlab.ece.ntua.gr/~ttsiod/primes.html

the Python code:
https://github.com/ttsiodras/PrimeSpirals/blob/master/primeSpirals.py

Direct translation to D:
https://gist.github.com/thedeemon/8295146

Result is somewhat shorter and two orders of magnitude faster 
even with the same very very slow and unoptimal algorithm. And, 
it seems, 2x faster than PyPy and Shedskin that do pretty much 
the same thing.

http://www.reddit.com/r/programming/comments/1ujoyk/the_ulam_spiral_python_50x_speedup_with_pypy/