How to convert a set to a list in python

Question

I am trying to convert a set to a list in Python 2 6  I m using this syntax   first list    1 2 3 4  my set set first list  my list   list my set    However  I get the following stack trace   Traceback  most recent call last     File   lt console gt    line 1  in  lt module gt  TypeError   set  object is not callable   How can I fix this

User · Answer

Simply type   list my set    This will turn a set in the form   1   2   into a list in the form   1   2

User · Answer

Hmmm I bet that in some previous lines you have something like   list   set something    Am I wrong

User · Answer

Instead of    first list    1 2 3 4  my set set first list  my list   list my set    Why not shortcut the process   my list   list set  1 2 3 4     This will remove the dupes from you list and return a list back to you

User · Answer

Whenever you are stuck in such type of problems  try to find the datatype of the element you want to convert first by using     type my set    Then  Use     list my set     to convert it to a list  You can use the newly built list like any normal list in python now

User · Answer

Review your first line  Your stack trace is clearly not from the code you ve pasted here  so I don t know precisely what you ve done    gt  gt  gt  my set   1 2 3 4    gt  gt  gt  my set  1  2  3  4   gt  gt  gt  type my set   lt type  list  gt   gt  gt  gt  list my set   1  2  3  4   gt  gt  gt  type     lt type  list  gt    What you wanted was set  1  2  3  4      gt  gt  gt  my set   set  1  2  3  4    gt  gt  gt  my set set  1  2  3  4    gt  gt  gt  type my set   lt type  set  gt   gt  gt  gt  list my set   1  2  3  4   gt  gt  gt  type     lt type  list  gt    The  not callable  exception means you were doing something like set     - attempting to call a set instance

User · Answer

Python is a dynamically typed language  which means that you cannot define the type of the variable as you do in C or C     type variable   value   or   type variable value    In Python  you use coercing if you change types  or the init functions  constructors  of the types to declare a variable of a type   my set   set  1 2 3   type my set   will give you  lt type  set  gt  for an answer    If you have a list  do this   my list    1 2 3  my set   set my list

User · Answer

It is already a list  type my set   gt  gt  gt   lt type  list  gt    Do you want something like   my set   set  1 2 3 4   my list   list my set  print my list  gt  gt   1  2  3  4    EDIT    Output of your last comment   gt  gt  gt  my list    1 2 3 4   gt  gt  gt  my set   set my list   gt  gt  gt  my new list   list my set   gt  gt  gt  print my new list  1  2  3  4    I m wondering if you did something like this      gt  gt  gt  set set    gt  gt  gt  set  1 2   Traceback  most recent call last     File   lt stdin gt    line 1  in  lt module gt  TypeError   set  object is not callable

User · Answer

EDITED  It s seems you earlier have redefined  list   using it as a variable name  like this   list   set  1 2 3 4     oops      first list    1 2 3 4  my set set first list  my list   list my set    And you l get  Traceback  most recent call last     File   lt console gt    line 1  in  lt module gt  TypeError   set  object is not callable

User · Answer

I m not sure that you re creating a set with this   1  2   syntax  rather a list  To create a set  you should use set  1  2     These brackets are just envelopping your expression  as if you would have written   if  condition1     and condition2    3       print something   There re not really ignored  but do nothing to your expression    Note   something  something else  will create a tuple  but still no list

[python] How to convert a set to a list in python?

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