Name Error in python [duplicate]

Question

I am getting the following Name Error in my python program though I declared the function before it is used.

Here is my program:

def __init__(self): self.root = None def insert_at(leaf, value): #some code here.... def insert(self,value): #some code here.... insert_at(self.root, value) def main(): #some code here insert(10) #some code here

Here is my error:

File "programs/binary_tree.py", line 38, in insert insert_at(self.root, value) NameError: name 'insert_at' is not defined

I did go through the following questions before asking this question, but couldn't understand why I am getting the error.

Make function definition in a python file order independent and Python NameError: name is not defined

@vaultah : Thanks...missed that question..

honey
– honey

2015-07-09 19:11:01 +00:00
Commented Jul 9, 2015 at 19:11 — honey
– honey, Commented Jul 9, 2015 at 19:11

TigerhawkT3 · Accepted Answer · 2015-07-09 19:05:41Z

2

Looks like those are methods in a class. You need the following changes:

def insert_at(self, leaf, value): # add self

self.insert_at(self.root, value) # add self

answered Jul 9, 2015 at 19:05

TigerhawkT3

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2 Comments

honey Over a year ago

Lets say I recusrively call insert_at() inside insert_at().. Should i still use self? i.e, inside insert_at(), should i call it again by self.insert_at() or just insert_at(). I tried both and they are working...Didnt understand the difference though.

TigerhawkT3 Over a year ago

Yes, still use self.

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