TypeError builtin function or method object is not subscriptable

Question

elif  listb 0      -test        run all set  testview       listb pop 0       ERROR  Exception in Tkinter callback Traceback  most recent call   last     File     tools python 2 7 2 lib python2 7 lib-tk Tkinter py   line 1410    in call       return self func  args    File    edit py   line 581  in populate       listb pop 0  TypeError   builtin function or method  object is not subscriptable   The line   581 is represented by last pop statement in the code above  run all is a StringVar   Why am I getting this error and how can it be solved

User · Accepted Answer

I think you want  listb pop   0    The expression listb pop is a valid python expression which results in a reference to the pop method  but doesn t actually call that method  You need to add the open and close parentheses to call the method

User · Answer

instead of writing listb pop 0  write   listb pop   0

User · Answer

This error arises when you don t use brackets with pop operation  Write the code in this manner   listb pop 0    This is a valid python expression

User · Answer

Mad a similar error  easy to fix        TypeError Traceback  most recent call last   lt ipython-input-2-1eb12bfdc7db gt  in  lt module gt    3 mylist    10 20 30  ---- gt  4 arr   np array  10 20 30   5 d     a  10   b  20   c  30  TypeError   builtin function or method  object is not subscriptable   but I should have written it as   arr   np array  10 20 30     Very fixable  rookie dumb mistake

User · Answer

Looks like you typed brackets instead of parenthesis by mistake

User · Answer

You are trying to access pop as if was a list or a tupple  but pop is not  It s a method

User · Answer

FYI  this is not an answer to the post  But it may help future users who may get the error with the message      TypeError   builtin function or method  object is not subscriptable   In my case  it was occurred due to bad indentation   Just indenting the line of code solved the issue

User · Answer

Can t believe this thread was going on for so long  You would get this error if you got distracted and used    instead of     at least my case  Pop is a method on the list data type  https   docs python org 2 tutorial datastructures html more-on-lists Therefore  you shouldn t be using pop as if it was a list itself  pop 0   It s a method that takes an optional parameter representing an index  so as Tushar Palawat pointed out in one of the answers that didn t get approved  the correct adjustment which will fix the example above is  listb pop 0   If you don t believe  run a sample such as  if   name         main       listb     quot -test quot     if  listb 0      quot -test quot        print listb pop 0    Other adjustments would work as well  but it feels as they are abusing the Python language  This thread needs to get fixed  not to confuse users  Addition  a pop   removes and returns the last item in the list  As a result  a pop   0  will get the first character of that last element  It doesn t seem that is what the given code snippet is aiming to achieve

[python] TypeError: 'builtin_function_or_method' object is not subscriptable

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