On Apr 22, 2007, at 1:49 PM, proctor wrote: > i have a small function which mimics binary counting. it runs fine as > long as the input is not too long, but if i give it input longer than > 8 characters it gives > > RuntimeError: maximum recursion depth exceeded in cmp > > i'm not too sure what i am doing improperly. is there really a lot of > recursion in this code? > > ================== > > import sys > > def ch4(item, n=0): > if n < len(item): > if item[n] == '0': > item[n] = '1' > print ''.join(item) > ch4(item) > elif item[n] == '1': > item[n] = '0' > ch4(item, n+1) > > ch4(list(sys.argv[1])) > > ==================
Yes. There really is *that* much recursion in that code. 502 levels with input length of 8 characters, 1013 with 9 characters, 2035 with 10 characters... There's a pattern there ;-) -- http://mail.python.org/mailman/listinfo/python-list
