{"id":21789,"date":"2020-08-27T10:16:13","date_gmt":"2020-08-27T17:16:13","guid":{"rendered":"https:\/\/careerkarma.com\/blog\/?p=21789"},"modified":"2023-12-01T03:58:53","modified_gmt":"2023-12-01T11:58:53","slug":"python-typeerror-list-object-is-not-callable","status":"publish","type":"post","link":"https:\/\/careerkarma.com\/blog\/python-typeerror-list-object-is-not-callable\/","title":{"rendered":"Python typeerror: \u2018list\u2019 object is not callable Solution"},"content":{"rendered":"\n

When you try to access items in a list using curly brackets ( () ), Python returns an error. This is because Python thinks that you are trying to call a function.
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In this guide, we talk about the Python \u201ctypeerror: \u2018list\u2019 object is not callable\u201d error and why it is raised. We\u2019ll walk through an example scenario to help you learn how to fix this error. Let\u2019s begin!<\/p>\n\n\n\n

The Problem: typeerror: \u2018list\u2019 object is not callable<\/h2>\n\n\n\n

Python already tells us all we need to know in this error:
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typeerror: 'list' object is not callable<\/pre><\/div>\n\n\n\n
Take a look at the error type: TypeError. This is one of the most common types of Python errors. It tells us we\u2019re trying to manipulate a value using a method not available to the type of data in which the value is stored.
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Our error message tells us that we\u2019re trying to call a Python list object<\/a>. This means we are treating it like a function rather than as a list.
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This error is raised when you use curly brackets to access items in a list<\/a>. Consider the following list of scones:
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scones = ["Cherry", "Apple and Cinnamon", "Plain", "Cheese"]<\/pre><\/div>\n\n\n\n
To access items in this list, we must state the index number of the value we want to access enclosed by square brackets:
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print(scones[0])<\/pre><\/div>\n\n\n\n
This returns: Cherry. 0 is the position of the first item in our list, \u201cCherry\u201d.<\/p>\n\n\n\n
An Example Scenario<\/h2>\n\n\n\n
We\u2019re going to build a Python program that capitalizes a list of names. We must capitalize the first letters of these names because they are going to be printed out on name cards.
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Start by declaring a list of names:<\/p>\n\n\n\n
names = ["Peter Geoffrey", "Dakota Williams", "Rebecca Lee"]<\/pre><\/div>\n\n\n\n
Next, create a for loop that iterates through this list of names. We\u2019ll convert each name to upper case and replace the lowercase name with the uppercase name in the list:
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for n in range(len(names)):\n\tnames[n] = names(n).upper()\n\tprint(names(n))\n\nprint(names)<\/pre><\/div>\n\n\n\n
Use the range()<\/a> method to iterate through every item in the \u201cnames\u201d list. Then use the assignment operator to change the value of each name to its uppercase equivalent. The Python upper()<\/a> method converts each name to uppercase.
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Next, print out the new name to the console. Once our loop has run, print out the whole revised list to the console.
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Let\u2019s run our code:<\/p>\n\n\n\n
Traceback (most recent call last):\n  File "main.py", line 4, in <module>\n\tnames[n] = names(n).upper()\nTypeError: 'list' object is not callable<\/pre><\/div>\n\n\n\n
We\u2019ve received an error, as expected. Let\u2019s solve this problem.<\/p>\n\n\n\n
The Solution<\/h2>\n\n\n\n
Use square brackets to access items in a list. Curly brackets are used to call functions in Python<\/a>. The problem in our code is that we\u2019re trying to call a list as a function because we\u2019re using curly brackets to access items in our list.
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In our code, use curly brackets to access a list item in two places:<\/p>\n\n\n\n
for n in range(len(names)):\nnames[n] = names(n).upper()\nprint(names(n))<\/pre><\/div>\n\n\n\n
We must swap the names(n) code to use square brackets: 
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for n in range(len(names)):\nnames[n] = names[n].upper()\nprint(names[n])<\/pre><\/div>\n\n\n\n
This tells Python we want to access the item at the index position \u201cn\u201d in the list \u201cnames\u201d.
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Run our code with the applicable revisions we just discussed:
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PETER GEOFFREY\nDAKOTA WILLIAMS\nREBECCA LEE\n\n['PETER GEOFFREY', 'DAKOTA WILLIAMS', 'REBECCA LEE']<\/pre><\/div>\n\n\n\n
This time, a successful response returns. Every name is converted into capital letters.
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The version of a name in capital letters replaces the sentence-case version of the name. Then, we print out each name to the console. When our program is done, we print out a list of all the names in \u201cnames\u201d to check that they have been changed in our list.
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