Python indentation error despite correct indent

Question

I am facing indentation error despite correct spaces. I am not able to figure out the exact problem

Code region :

def reverse(self,pos):
cur=pos
prevnode =None
nextnode=None
while cur.next!=None:
        nextnode=cur.next
        cur.next=prevnode
        prevnode=cur
        cur=nextnode
        self.head=prevnode

error comes at this point :

File "python", line 75 nextnode=None ^ IndentationError: unexpected indent Here's the repl link :https://repl.it/@LJ1/ConstantPurpleDisk

The error is self-explanatory... you have an indent where there shouldn't be one on line 75. — l'L'l, Apr 25 '18 at 05:47
Possible duplicate of [What to do with "Unexpected indent" in python?](https://stackoverflow.com/questions/1016814/what-to-do-with-unexpected-indent-in-python) — l'L'l, Apr 25 '18 at 05:48
You are using tabs and spaces to indent. Use either tab or space. Check this https://repl.it/repls/LuxuriousTestyConnections — vishal, Apr 25 '18 at 06:01

score 1 · Answer 1 · answered Apr 25 '18 at 05:48

It should be like this

def reverse(self,pos):
    cur=pos
    prevnode=None
    nextnode=None

    while pos.next!=None:
      cur=self.head
      prevnode=None
      nextnode=None

      while cur.next!=None:
            nextnode=cur.next
            cur.next=prevnode
            prevnode=cur
            cur=nextnode
            self.head=prevnode

Python indentation error despite correct indent

1 Answers1