anarchy golf - the source code

Digit depth by mcgridles

import os
s,x='',0
for c in os.read(0,999):
    x+=1 if c=='(' else -1 if c==')' else 0
    s+=str(x) if c=='0' else c
print(s)

Note that non-ascii characters in the above source code will be escaped (such as \x9f).