def numslice(x, start=None, stop=None, system=10):
if start is None:
start = 0
if stop is None:
stop = int(mlog.log(system)(x)) + 1
if start < 0 and stop >= 0:
start = int(mlog.log(system)(x)) + 1 + start
elif stop < 0 and start >= 0:
stop = int(mlog.log(system)(x)) + 1 + stop
if stop < start:
raise ValueError
return nth(x, max(start, stop - 1), abs(start - stop), system)
def nth(x, n, digits=1, system=10):
if n < 0:
return int(x / (system ** (abs(n) - 1))) % system ** digits
else:
return int(
x / (system ** int(mlog.log(system)(x) - n))
) % system ** digits