You are looking for information, articles, knowledge about the topic nail salons open on sunday near me function object is not subscriptable on Google, you do not find the information you need! Here are the best content compiled and compiled by the https://chewathai27.com/to team, along with other related topics such as: function object is not subscriptable Functional object is not subscriptable, NoneType’ object is not subscriptable, None type object is not subscriptable, Function object is not iterable, Python object is not subscriptable, Object is not subscriptable django, TypeError: ‘int’ object is not subscriptable, Builtin_function_or_method’ object is not subscriptable
The error “TypeError: ‘function’ object is not subscriptable” occurs when you try to access an item from a function. Functions cannot be indexed using square brackets. To solve this error, ensure functions have different names to variables. Always call a function before attempting to access the functions.Python throws the TypeError object is not subscriptable if you use indexing with the square bracket notation on an object that is not indexable. This is the case if the object doesn’t define the __getitem__() method.TypeError: ‘NoneType’ object is not subscriptable Solution
The best way to resolve this issue is by not assigning the sort() method to any variable and leaving the numbers. sort() as is.
What does it mean when an object is not Subscriptable?
Python throws the TypeError object is not subscriptable if you use indexing with the square bracket notation on an object that is not indexable. This is the case if the object doesn’t define the __getitem__() method.
How do I fix NoneType object is not Subscriptable in Python?
TypeError: ‘NoneType’ object is not subscriptable Solution
The best way to resolve this issue is by not assigning the sort() method to any variable and leaving the numbers. sort() as is.
How do you fix float objects are not Subscriptable?
The error “TypeError: ‘float’ object is not subscriptable” occurs when you try to access a floating-point number like a list. To solve this error, ensure you only use indexing or slicing syntax on a subscriptable object, like a list or a string.
What does Builtin_function_or_method object is not Subscriptable mean in Python?
The “TypeError: ‘builtin_function_or_method’ object is not subscriptable” error occurs when you try to access a built-in function using square brackets. This is because when the Python interpreter sees square brackets it tries to access items from a value as if that value is iterable.
What objects are Subscriptable?
In simple words, objects which can be subscripted are called sub scriptable objects. In Python, strings, lists, tuples, and dictionaries fall in subscriptable category.
What is meant by Subscriptable in Python?
Some objects in Python are subscriptable. This means that they contain, or can contain, other objects. Integers are not a subscriptable object. They are used to store whole numbers. If you treat an integer like a subscriptable object, an error will be raised.
How do I fix NoneType errors in Python?
The error “TypeError: ‘NoneType’ object is not iterable” occurs when you try to iterate over a NoneType object. Objects like list, tuple, and string are iterables, but not None. To solve this error, ensure you assign any values you want to iterate over to an iterable object.
What is a NoneType object?
NoneType is the type for the None object, which is an object that indicates no value. None is the return value of functions that “don’t return anything”.
How do you test for NoneType?
To check whether a variable is None or not, use the is operator in Python. With the is operator, use the syntax object is None to return True if the object has the type NoneType and False otherwise.
How do you make an int object Subscriptable?
The TypeError: ‘int’ object is not subscriptable error occurs if we try to index or slice the integer as if it is a subscriptable object like list, dict, or string objects. The issue can be resolved by removing any indexing or slicing to access the values of the integer object.
How do you fix TypeError list indices must be integers or slices not float?
The Python “TypeError: list indices must be integers or slices, not float” occurs when we use a floating-point number to access a list at a specific index. To solve the error, convert the float to an integer, e.g. my_list[int(my_float)] .
What does type object is not Subscriptable mean in Python?
The “TypeError: ‘type’ object is not subscriptable” error is raised when you try to access an object using indexing whose data type is “type”. To solve this error, ensure you only try to access iterable objects, like tuples and strings, using indexing.
What is a builtin_function_or_method?
This usually happens when a function or any operation is applied against an incorrect object. In such a situation, you are likely to encounter an error called typeerror ‘builtin_function_or_method’ object is not subscriptable.
What is type builtin_function_or_method?
The python error TypeError: object of type ‘builtin_function_or_method’ has no len() occurs while attempting to find the length of an object that returns a build in function or a method. The python variables can have a reference of a build in function or a method.
What is NoneType object is not Subscriptable?
The error, NoneType object is not subscriptable, means that you were trying to subscript a NoneType object. This resulted in a type error. ‘NoneType’ object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn’t define the __getitem__ method.
What does type object is not Subscriptable mean in Python?
The “TypeError: ‘type’ object is not subscriptable” error is raised when you try to access an object using indexing whose data type is “type”. To solve this error, ensure you only try to access iterable objects, like tuples and strings, using indexing.
What is NoneType object is not Subscriptable?
The error, NoneType object is not subscriptable, means that you were trying to subscript a NoneType object. This resulted in a type error. ‘NoneType’ object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn’t define the __getitem__ method.
Are sets Subscriptable Python?
In Python, you cannot access values inside a set using indexing syntax. A set is an unordered collection of unique elements. Because a set is unordered, they do not record element position or insertion order.
How to Solve Python TypeError: ‘function’ object is not subscriptable – The Research Scientist Pod
- Article author: researchdatapod.com
- Reviews from users: 14291 Ratings
- Top rated: 4.6
- Lowest rated: 1
- Summary of article content: Articles about How to Solve Python TypeError: ‘function’ object is not subscriptable – The Research Scientist Pod Updating …
- Most searched keywords: Whether you are looking for How to Solve Python TypeError: ‘function’ object is not subscriptable – The Research Scientist Pod Updating You cannot access a function as if it were an iterable object like a string or a list. Solve this Python TypeError with this tutorial!
- Table of Contents:
Table of contents
TypeError ‘function’ object is not subscriptable
Example #1 Calling a Function Using Square Brackets
Example #2 Function has the Same Name as a Subscriptable object
Summary
Python TypeError: ‘function’ object is not subscriptable | Career Karma
- Article author: careerkarma.com
- Reviews from users: 47126 Ratings
- Top rated: 4.2
- Lowest rated: 1
- Summary of article content: Articles about Python TypeError: ‘function’ object is not subscriptable | Career Karma The “TypeError: ‘function’ object is not subscriptable” error is raised when you try to access an item from a function as if the function were … …
- Most searched keywords: Whether you are looking for Python TypeError: ‘function’ object is not subscriptable | Career Karma The “TypeError: ‘function’ object is not subscriptable” error is raised when you try to access an item from a function as if the function were … On Career Karma, learn about the Python TypeError: ‘function’ object is not subscriptable, how the error works, and how to solve the error.
- Table of Contents:
TypeError ‘function’ object is not subscriptable
Scenario #1 Function with Same Name as an Iterable
Scenario #2 Accessing a Function Using Indexing
Conclusion
TypeError: ‘function’ object is not subscriptable – Python – Stack Overflow
- Article author: stackoverflow.com
- Reviews from users: 44848 Ratings
- Top rated: 3.1
- Lowest rated: 1
- Summary of article content: Articles about TypeError: ‘function’ object is not subscriptable – Python – Stack Overflow You have two objects both named bank_holay — one a list and one a function. Disambiguate the two. bank_holay[month] is raising an error … …
- Most searched keywords: Whether you are looking for TypeError: ‘function’ object is not subscriptable – Python – Stack Overflow You have two objects both named bank_holay — one a list and one a function. Disambiguate the two. bank_holay[month] is raising an error …
- Table of Contents:
4 Answers
4
Your Answer
Not the answer you’re looking for Browse other questions tagged python or ask your own question
Python TypeError: ‘NoneType’ object is not subscriptable – ItsMyCode
- Article author: itsmycode.com
- Reviews from users: 40284 Ratings
- Top rated: 4.6
- Lowest rated: 1
- Summary of article content: Articles about Python TypeError: ‘NoneType’ object is not subscriptable – ItsMyCode Updating …
- Most searched keywords: Whether you are looking for Python TypeError: ‘NoneType’ object is not subscriptable – ItsMyCode Updating If you subscript object like list, tuple, dict with None value, Python will raise TypeError: ‘NoneType’ object is not subscriptable error.
- Table of Contents:
What is TypeError ‘NoneType’ object is not subscriptable
TypeError ‘NoneType’ object is not subscriptable Solution
Conclusion
Python String strip()
Python FileNotFoundError [Errno 2] No such file or directory Solution
TypeError only size-1 arrays can be converted to python scalars
IndentationError unexpected indent
How to enable CORS on Django REST Framework
List of Free Python Books
How to Solve Python TypeError: ‘float’ object is not subscriptable – The Research Scientist Pod
- Article author: researchdatapod.com
- Reviews from users: 29110 Ratings
- Top rated: 4.9
- Lowest rated: 1
- Summary of article content: Articles about How to Solve Python TypeError: ‘float’ object is not subscriptable – The Research Scientist Pod Updating …
- Most searched keywords: Whether you are looking for How to Solve Python TypeError: ‘float’ object is not subscriptable – The Research Scientist Pod Updating This error occurs when we try to index a floating-point number. Learn how to solve this error in this tutorial!
- Table of Contents:
Table of contents
TypeError ‘float’ object is not subscriptable
Example #1 Accessing an Item from a Float
Example #2 Replacing Multiple Items in a List
Summary
Python TypeError: ‘builtin_function_or_method’ object is not subscriptable
- Article author: careerkarma.com
- Reviews from users: 18480 Ratings
- Top rated: 4.0
- Lowest rated: 1
- Summary of article content: Articles about Python TypeError: ‘builtin_function_or_method’ object is not subscriptable Updating …
- Most searched keywords: Whether you are looking for Python TypeError: ‘builtin_function_or_method’ object is not subscriptable Updating On Career Karma, learn about the Python TypeError: ‘builtin_function_or_method’ object is not subscriptable error, how the error works, and how to solve the error.
- Table of Contents:
TypeError ‘builtin_function_or_method’ object is not subscriptable
An Example Scenario
The Solution
Conclusion
Python TypeError: ‘function’ object is not subscriptable Solution
- Article author: www.techgeekbuzz.com
- Reviews from users: 36503 Ratings
- Top rated: 4.6
- Lowest rated: 1
- Summary of article content: Articles about Python TypeError: ‘function’ object is not subscriptable Solution This error message is telling us that we are performing the subscritable or indexing operation on a function object. In Python, everything is an … …
- Most searched keywords: Whether you are looking for Python TypeError: ‘function’ object is not subscriptable Solution This error message is telling us that we are performing the subscritable or indexing operation on a function object. In Python, everything is an …
- Table of Contents:
Table of Content
Conclusion
Get the latest tutorials and updates
typeerror: function object is not subscriptable ( Easy ways to Fix )
- Article author: www.datasciencelearner.com
- Reviews from users: 47081 Ratings
- Top rated: 3.5
- Lowest rated: 1
- Summary of article content: Articles about typeerror: function object is not subscriptable ( Easy ways to Fix ) The typeerror: function object is not subscriptable error generates because of using indexes while invoking functional object. Generally, Functions are … …
- Most searched keywords: Whether you are looking for typeerror: function object is not subscriptable ( Easy ways to Fix ) The typeerror: function object is not subscriptable error generates because of using indexes while invoking functional object. Generally, Functions are … The typeerror: function object is not subscriptable error generates because of using indexes while invoking functional object.
- Table of Contents:
typeerror function object is not subscriptable ( Root Cause ) –
typeerror function object is not subscriptable ( Solution ) –
Similar Errors
FOLLOW SOCIALS
You Might Also Enjoy
‘function’ object is not subscriptable – Python Error – Code & Demo
- Article author: akashmittal.com
- Reviews from users: 12192 Ratings
- Top rated: 4.8
- Lowest rated: 1
- Summary of article content: Articles about ‘function’ object is not subscriptable – Python Error – Code & Demo Python throws error, ‘method’ object is not subscriptable, when a method is indexed or subscripted using square brackets [] like if its a … …
- Most searched keywords: Whether you are looking for ‘function’ object is not subscriptable – Python Error – Code & Demo Python throws error, ‘method’ object is not subscriptable, when a method is indexed or subscripted using square brackets [] like if its a … Python throws error, ‘function’ object is not subscriptable, when we try to index or subscript a function. Lear from code and demo.
- Table of Contents:
Live Demo
Python TypeError Unhashable Type ‘list’
‘nonetype’ object has no attribute ‘append’ – Python Error
ValueError The truth value of a Series is ambiguous Use aempty abool() aitem() aany() or aall()
‘int’ object is not subscriptable – Python Error
‘module’ object is not callable – Python Error
‘numpyndarray’ object is not callable – Python Error
Only length-1 arrays can be converted to python scalars
aapt error resource androidcolorsystem_neutral1_1000 not found
sonarr radarr jackett transmission docker
Third time lucky how I conquered WordPress
Object Is Not Subscriptable – Runbooks
- Article author: containersolutions.github.io
- Reviews from users: 26320 Ratings
- Top rated: 3.6
- Lowest rated: 1
- Summary of article content: Articles about Object Is Not Subscriptable – Runbooks Specific examples: … This problem is caused by trying to access an object that cannot be indexed as though it can be accessed via an index. For example, in the … …
- Most searched keywords: Whether you are looking for Object Is Not Subscriptable – Runbooks Specific examples: … This problem is caused by trying to access an object that cannot be indexed as though it can be accessed via an index. For example, in the … Fixing this cryptic Python TypeError|
- Table of Contents:
Overview
Initial Steps Overview
Detailed Steps
Solutions List
Solutions Detail
Further Information
Authors
Why is this error showing in a Python function ‘object is not subscriptable’? – Quora
- Article author: www.quora.com
- Reviews from users: 22812 Ratings
- Top rated: 3.7
- Lowest rated: 1
- Summary of article content: Articles about Why is this error showing in a Python function ‘object is not subscriptable’? – Quora it means your code has a variable which your code is treating as a list but where the actual variable is an integer. For instance : x = 17. …
- Most searched keywords: Whether you are looking for Why is this error showing in a Python function ‘object is not subscriptable’? – Quora it means your code has a variable which your code is treating as a list but where the actual variable is an integer. For instance : x = 17. My first guess would be that you are using the wrong syntax. A function call is [code]func( arguments ) [/code]Note the use of round brackets And I think you are using [code]func[ arguments ] [/code]The square brackets are used to index or subscri…
- Table of Contents:
Attention Required! | Cloudflare
- Article author: copyprogramming.com
- Reviews from users: 18835 Ratings
- Top rated: 4.7
- Lowest rated: 1
- Summary of article content: Articles about Attention Required! | Cloudflare However, I kept receiving the error : function object is not subscriptable. Now you try to take the second to last element of a function … …
- Most searched keywords: Whether you are looking for Attention Required! | Cloudflare However, I kept receiving the error : function object is not subscriptable. Now you try to take the second to last element of a function …
- Table of Contents:
You are unable to access copyprogrammingcom
Why have I been blocked
What can I do to resolve this
Azure – Web Application Firewall
- Article author: docs.microsoft.com
- Reviews from users: 23883 Ratings
- Top rated: 4.3
- Lowest rated: 1
- Summary of article content: Articles about Azure – Web Application Firewall Dear Team,. I’m trying to execute a custom python script inse my Azure Function App and getting function object is not subscriptable error … …
- Most searched keywords: Whether you are looking for Azure – Web Application Firewall Dear Team,. I’m trying to execute a custom python script inse my Azure Function App and getting function object is not subscriptable error …
- Table of Contents:
See more articles in the same category here: Chewathai27.com/to/blog.
How to Solve Python TypeError: ‘function’ object is not subscriptable
In Python, a function is a block of code that only runs when called. You can pass data, known as parameters or arguments, to a function, and a function can return data as a result. To call a function, you must use the function name followed by parentheses () and pass the arguments inside the parentheses separated by commas. If you try to call a function using square brackets [] instead of parentheses, you will raise the error: “TypeError: ‘function’ object is not subscriptable”.
This tutorial will go through the error in detail. We will go through two example scenarios of this error and learn to solve it.
TypeError: ‘function’ object is not subscriptable
What is a TypeError?
A TypeError occurs when you perform an illegal operation for a specific data type.
What Does Subscriptable Mean?
The subscript operator, which is square brackets [] , retrieves items from subscriptable objects like lists or tuples. The operator in fact calls the __getitem__ method, for example, a[i] is equivalent to a.__getitem__(i) .
All subscriptable objects have a __getitem__ method. Functions do not contain items and do not have a __getitem__ method. We can verify that functions objects do not have the __getitem__ method by defining a function and passing it to the dir() method:
def add(a, b): result = a + b return result print(type(add)) print(dir(add))
[‘__annotations__’, ‘__call__’, ‘__class__’, ‘__closure__’, ‘__code__’, ‘__defaults__’, ‘__delattr__’, ‘__dict__’, ‘__dir__’, ‘__doc__’, ‘__eq__’, ‘__format__’, ‘__ge__’, ‘__get__’, ‘__getattribute__’, ‘__globals__’, ‘__gt__’, ‘__hash__’, ‘__init__’, ‘__init_subclass__’, ‘__kwdefaults__’, ‘__le__’, ‘__lt__’, ‘__module__’, ‘__name__’, ‘__ne__’, ‘__new__’, ‘__qualname__’, ‘__reduce__’, ‘__reduce_ex__’, ‘__repr__’, ‘__setattr__’, ‘__sizeof__’, ‘__str__’, ‘__subclasshook__’] Let’s look at an example of accessing an item from a list:
numbers = [0, 1, 2, 3, 4] print(numbers[2])
2
The value at the index position 2 is 2. Therefore, the code returns 2.
Functions are not subscriptable. Therefore, you cannot use square syntax to access the items in a function or to call a function, and functions can only return a subscriptable object if we call them.
The error “TypeError: ‘function’ object is not subscriptable” occurs when you try to access a function as if it were a subscriptable object. There are two common mistakes made in code that can raise this error.
Calling a function using square brackets
Assigning a function the same name as a subscriptable object
Example #1: Calling a Function Using Square Brackets
You can call a function using parentheses after the function name, and indexing uses square brackets after the list, tuple, or string name. If we put the indexing syntax after a function name, the Python interpreter will try to perform the indexing operation on the function. Function objects do not support the indexing operation, and therefore the interpreter will throw the error.
Let’s look at an example of creating a function that takes two integers as arguments and raises the first integer to the power of the second integer using the exponentiation operator ** . First, you define the exponent function, then define two integer values to pass to the function. Then you will print the result of the exponent function.
# Exponent function def exponent(a, b): return a ** b a = 4 b = 3 print(f'{a} raised to the power of {b} is: {exponent[a, b]}’)
————————————————————————— TypeError Traceback (most recent call last) Input In [2], in
() 7 a = 4 9 b = 3 —> 11 print(f'{a} raised to the power of {b} is: {exponent[a, b]}’) TypeError: ‘function’ object is not subscriptable | The code did not run because you tried to call the exponent function using square brackets.
Solution
You need to replace the square brackets after the exponent name with parentheses to solve the problem.
# Exponent function def exponent(a, b): return a ** b a = 4 b = 3 print(f'{a} raised to the power of {b} is: {exponent(a, b)}’)
4 raised to the power of 3 is: 64
The code runs successfully with the correct syntax to call a function in place.
Example #2: Function has the Same Name as a Subscriptable object
You may encounter this TypeError if you define a subscriptable object with the same name as a function. Let’s look at an example where we define a dictionary containing information about the fundamental physical particle, the muon.
particle = { “name”:”Muon”, “charge”:-1, “spin”:1/2, “mass”:105.7 }
Next, we are going to define a function that prints out the values of the dictionary to the console:
def particle(p): print(f’Particle Name: {p[“name”]}’) print(f’Particle Charge: {p[“charge”]}’) print(f’Particle Spin: {p[“spin”]}’) print(f’Particle Mass: {p[“mass”]}’)
Next, we will call the particle function and pass the particle dictionary as a parameter:
particle(particle)
————————————————————————— TypeError Traceback (most recent call last) Input In [5], in
() —-> 1 particle(particle) Input In [4], in particle(p) 1 def particle(p): —-> 3 print(f’Particle Name: {p[“name”]}’) 5 print(f’Particle Charge: {p[“charge”]}’) 7 print(f’Particle Spin: {p[“spin”]}’) TypeError: ‘function’ object is not subscriptable | We raise this error because we have a function and a subscriptable object with the same name. We first declare “ particle ” as a dictionary, and then we define a function with the same name, which makes “ particle ” a function rather than a dictionary. Therefore, when we pass “ particle ” as a parameter to the particle() function, we are passing the function with the name “ particle “. Square brackets are used within the code block to access items in the dictionary, but this is done on the function instead.
Solution
To solve this problem, we can change the name of the function. It is good to change the function name to describe what the function does. In this case, we will rename the function to show_particle_details() .
particle = { “name”:”Muon”, “charge”:-1, “spin”:1/2, “mass”:105.7 }
def show_particle_details(p): print(f’Particle Name: {p[“name”]}’) print(f’Particle Charge: {p[“charge”]}’) print(f’Particle Spin: {p[“spin”]}’) print(f’Particle Mass: {p[“mass”]}’)
Let’s see what happens when we try to run the code:
show_particle_details(particle)
Particle Name: Muon Particle Charge: -1 Particle Spin: 0.5 Particle Mass: 105.7
The code runs successfully and prints out the particle information to the console.
Summary
Congratulations on reading to the end of this tutorial. The error “TypeError: ‘function’ object is not subscriptable” occurs when you try to access an item from a function. Functions cannot be indexed using square brackets.
To solve this error, ensure functions have different names to variables. Always call a function before attempting to access the functions. When you call a function using parentheses and not square brackets, the function returns.
For further reading on TypeErrors, go to the articles:
Go to the online courses page on Python to learn more about Python for data science and machine learning.
Have fun and happy researching!
Python TypeError: ‘function’ object is not subscriptable Solution
Unlike iterable objects, you cannot access a value from a function using indexing syntax.
Even if a function returns an iterable, you must assign the response from a function to a variable before accessing its values. Otherwise, you encounter an “TypeError: ‘function’ object is not subscriptable” error.
In this guide, we talk about what this error means. We walk through two examples of this error so you can figure out how to solve it in your code.
TypeError: ‘function’ object is not subscriptable
Iterable objects such as lists and strings can be accessed using indexing notation. This lets you access an individual item, or range of items, from an iterable.
Consider the following code:
grades = [“A”, “A”, “B”] print(grades[0])
The value at the index position 0 is A. Thus, our code returns “A”. This syntax does not work on a function. This is because a function is not an iterable object. Functions are only capable of returning an iterable object if they are called.
The “TypeError: ‘function’ object is not subscriptable” error occurs when you try to access a function as if it were an iterable object.
This error is common in two scenarios:
81% of participants stated they felt more confident about their tech job prospects after attending a bootcamp. Get matched to a bootcamp today. Find Your Bootcamp Match
The average bootcamp grad spent less than six months in career transition, from starting a bootcamp to finding their first job. Start your career switch today
When you assign a function the same name as an iterable
When you try to access the values from a function as if the function were iterable
Let’s analyze both of these scenarios.
Scenario #1: Function with Same Name as an Iterable
Create a program that prints out information about a student at a school. We start by defining a dictionary with information on a student and their latest test score:
student = { “name”: “Holly”, “latest_test_score”: “B”, “class”: “Sixth Grade” }
Our dictionary contains three keys and three values. One key represents the name of a student; one key represents the score a student earned on their latest test; one key represents the class a student is in.
Next, we’re going to define a function that prints out these values to the console:
def student(pupil): print(“Name: ” + pupil[“name”]) print(“Latest Test Score: ” + pupil[“latest_test_score”]) print(“Class: ” + pupil[“class”])
Our code prints out the three values in the “pupil” dictionary to the console. The “pupil” dictionary is passed as an argument into the student() function.
Let’s call our function and pass the “student” dictionary as a parameter:
student(student)
Our Python code throws an error:
[fasttrack_express_form]Traceback (most recent call last): File “main.py”, line 8, in
student(student) File “main.py”, line 4, in student print(“Name: ” + pupil[“name”]) TypeError: ‘function’ object is not subscriptable This error is caused because we have a function and an iterable with the same name. “student” is first declared as a dictionary. We then define a function with the same name. This makes “student” a function rather than a dictionary.
When we pass “student” as a parameter into the student() function, we are passing the function with the name “student”.
We solve this problem by renaming our student function:
def show_student_details(pupil): print(“Name: ” + pupil[“name”]) print(“Latest Test Score: ” + pupil[“latest_test_score”]) print(“Class: ” + pupil[“class”]) show_student_details(student)
We have renamed our function to “show_student_details”. Let’s run our code and see what happens:
Name: Holly Latest Test Score: B Class: Sixth Grade
Our code successfully prints out information about our student to the console.
Scenario #2: Accessing a Function Using Indexing
Write a program that filters a list of student records and only shows the ones where a student has earned an A grade on their latest test.
We’ll start by defining an array of students:
students = [ { “name”: “Holly”, “grade”: “B” }, { “name”: “Samantha”, “grade”: “A” }, { “name”: “Ian”, “grade”: “A” } ]
Our list of students contains three dictionaries. Each dictionary contains the name of a student and the grade they earned on their most recent test.
Next, define a function that returns a list of students who earned an A grade:
def get_a_grade_students(pupils): a_grade_students = [] for p in pupils: if p[“grade”] == “A”: a_grade_students.append(p) print(a_grade_students) return a_grade_students
The function accepts a list of students called “pupils”. Our function iterates over that list using a for loop. If a particular student has earned an “A” grade, their record is added to the “a_grade_students” list. Otherwise, nothing happens.
Once all students have been searched, our code prints a list of the students who earned an “A” grade and returns that list to the main program.
“Career Karma entered my life when I needed it most and quickly helped me match with a bootcamp. Two months after graduating, I found my dream job that aligned with my values and goals in life!” Venus, Software Engineer at Rockbot Find Your Bootcamp Match
We want to retrieve the first student who earned an “A” grade. To do this, we call our function and use indexing syntax to retrieve the first student’s record:
first = get_a_grade_students[0] print(first)
Run our code:
Traceback (most recent call last): File “main.py”, line 16, in
first = get_a_grade_students[0] TypeError: ‘function’ object is not subscriptable Our code returns an error. We’re trying to access a value from the “get_a_grade_students” function without first calling the function.
To solve this problem, we should call our function before we try to retrieve values from it:
a_grades = get_a_grade_students(students) first = a_grades[0] print(first)
First, we call our get_a_grade_students() function and specify our list of students as a parameter. Next, we use indexing to retrieve the record at the index position 0 from the list that the get_a_grade_students() function returns. Finally, we print that record to the console.
Let’s execute our code:
[{‘name’: ‘Samantha’, ‘grade’: ‘A’}, {‘name’: ‘Ian’, ‘grade’: ‘A’}] {‘name’: ‘Samantha’, ‘grade’: ‘A’}Our code first prints out a list of all students who earned an “A” grade. Next, our code prints out the first student in the list who earned an “A” grade. That student was Samantha in this case.
Conclusion
The “TypeError: ‘function’ object is not subscriptable” error is raised when you try to access an item from a function as if the function were an iterable object, like a string or a list.
To solve this error, first make sure that you do not override any variables that store values by declaring a function after you declare the variable. Next, make sure that you call a function first before you try to access the values it returns.
Now you’re ready to solve this common Python error like a professional coder!
Python TypeError: Object is Not Subscriptable (How to Fix This Stupid Bug) – Finxter
4.2/5 – (5 votes)
Do you encounter this stupid error?
You’re not alone—thousands of coders like you generate this error in thousands of projects every single month. This short tutorial will show you exactly why this error occurs, how to fix it, and how to never make the same mistake again. So, let’s get started!
Python throws the TypeError object is not subscriptable if you use indexing with the square bracket notation on an object that is not indexable. This is the case if the object doesn’t define the __getitem__() method. You can fix it by removing the indexing call or defining the __getitem__ method.
The following code snippet shows the minimal example that leads to the error:
variable = None print(variable[0]) # TypeError: ‘NoneType’ object is not subscriptable
You set the variable to the value None . The value None is not a container object, it doesn’t contain other objects. So, the code really doesn’t make any sense—which result do you expect from the indexing operation?
Exercise: Before I show you how to fix it, try to resolve the error yourself in the following interactive shell:
If you struggle with indexing in Python, have a look at the following articles on the Finxter blog—especially the third!
Related Articles:
Note that a similar problem arises if you set the variable to the integer value 42 instead of the None value. The only difference is that the error message now is “TypeError: ‘int’ object is not subscriptable” .
You can fix the non-subscriptable TypeError by wrapping the non-indexable values into a container data type such as a list in Python:
variable = [None] print(variable[0]) # None
The output now is the value None and the script doesn’t throw an error anymore.
An alternative is to define the __getitem__ method in your code:
class X: def __getitem__(self, i): return f”Value {i}” variable = X() print(variable[0]) # Value 0
You overwrite the __getitem__ method that takes one (index) argument i (in addition to the obligatory self argument) and returns the i -th value of the “container”. In our case, we just return a string “Value 0” for the element variable[0] and “Value 10” for the element variable[10] . It doesn’t make a lot of sense here but is the minimal example that shows how it works.
I hope you’d be able to fix the bug in your code! Before you go, check out our free Python cheat sheets that’ll teach you the basics in Python in minimal time:
Programming Humor – Python
“I wrote 20 short programs in Python yesterday. It was wonderful. Perl, I’m leaving you.” — xkcd
So you have finished reading the function object is not subscriptable topic article, if you find this article useful, please share it. Thank you very much. See more: Functional object is not subscriptable, NoneType’ object is not subscriptable, None type object is not subscriptable, Function object is not iterable, Python object is not subscriptable, Object is not subscriptable django, TypeError: ‘int’ object is not subscriptable, Builtin_function_or_method’ object is not subscriptable