Regarding my python code

Question

This is my code, while I am running my function rwpos() is supposed to return something, but it is not returning anything. Please help me through this...

import random

def rs():
    return random.choice([-1,1])

def rwpos(start,nsteps):
        if nsteps == 0:
                print start,nsteps
                return start
        else:
                start = start + rs()
                rwpos(start,nsteps-1)

x = rwpos(40,4)
print x

x is printing None ... ~

`return rwpos(start,nsteps-1)` – sobolevn Jun 15 '15 at 16:18 — sobolevn, Jun 15 '15 at 16:18
you miss a `return` statement in the `else` branch – fferri Jun 15 '15 at 16:19 — fferri, Jun 15 '15 at 16:19

score 1 · Answer 1 · edited Jun 15 '15 at 16:25

1

import random

def rs():
    return random.choice([-1,1])

def rwpos(start,nsteps):

    if nsteps == 0:
        print start,nsteps
    else:
        start = start + rs()
        return rwpos(start,nsteps-1)

x = rwpos(40,4)
print x

You were not returning in the else statement.

edited Jun 15 '15 at 16:25

Nathan M.

286
1
9

answered Jun 15 '15 at 16:19

marsh

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Regarding my python code

1 Answers1