Setting stacksize in a python script

I have good experience with the following code. It doesn't require any special user permissions:

import resource, sys
resource.setrlimit(resource.RLIMIT_STACK, (2**29,-1))
sys.setrecursionlimit(10**6)

It does however not seem to work with pypy.

If resource.setrlimit doesn't work, you can also try using threads:

sys.setrecursionlimit(10**6)
import threading
threading.stack_size(2**26)
threading.Thread(target=main).start()

You can just use the (u)limit command of your shell, if you want:

os.system('ulimit -s unlimited; some_executable')

Or (probably better) use resource.setrlimit:

resource.setrlimit(resource.RLIMIT_STACK, (resource.RLIM_INFINITY, resource.RLIM_INFINITY))

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