Ошибка typeerror float object is not callable

If you try to call a float as if it were a function, you will raise the error “TypeError: ‘float’ object is not callable”.

To solve this error, ensure you use operators between terms in mathematical operations and that you do not name any variables “float.

This tutorial will go through how to solve this error with the help of code examples.

TypeError: ‘float’ object is not callable

What is a TypeError?

TypeError occurs in Python when you perform an illegal operation for a specific data type.

What Does Callable Mean?

Calling a function means the Python interpreter executes the code inside the function. In Python, we can only call functions. We can call functions by specifying the name of the function we want to use followed by a set of parentheses, for example, function_name(). Let’s look at an example of a working function that returns a string.

# Declare function

def simple_function():

    print("Hello World!")

# Call function

simple_function()

Hello World!

We declare a function called simple_function in the code, which prints a string. We can then call the function, and the Python interpreter executes the code inside simple_function().

If we try to call a floating-point number, we will raise the TypeError:

number = 5.6

number()

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
      1 number = 5.6
      2 
----≻ 3 number()

TypeError: 'float' object is not callable

Example #1

Let’s look at an example to prove the sum of squares formula for two values. We define two variables with floating-point values, calculate the left-hand side and right-hand side of the formula, and then print if they are equal.

a = 3.0
b = 4.0
lhs = a ** 2 + b ** 2
rhs = (a + b)(a + b) - 2*a*b
print(lhs == rhs)

Let’s run the code to see what happens:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
      2 b = 4.0
      3 lhs = a ** 2 + b ** 2
----≻ 4 rhs = (a + b)(a + b) - 2*a*b
      5 print(lhs == rhs)

TypeError: 'float' object is not callable

The error occurs because we do not have the multiplication operator * between the two (a + b) terms. The Python interpreter sees this as a call to (a + b) with parameters (a + b).

Solution

We need to put a multiplication operator between the two (a + b) terms to solve the error. Let’s look at the revised code:

a = 3.0
b = 4.0
lhs = a ** 2 + b ** 2
rhs = (a + b)*(a + b) - 2*a*b
print(lhs == rhs)

Let’s run the code to see what happens:

True

We get a True statement, proving that the sum of squares formula works.

Example #2

Let’s look at an example of converting a weight value in kilograms to pounds. We give the conversion value the name “float” and then take the input from the user, convert it to a floating-point number then multiply it by the conversion value.

float = 2.205

weight = float(input("Enter weight in kilograms:  "))

weight_in_lbs = weight * float

print(f'{weight} kg is equivalent to {round(weight_in_lbs, 1)} lbs')

Let’s run the code to see what happens:

Enter weight in kilograms:  85
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
      1 float = 2.205
      2 
----≻ 3 weight = float(input("Enter weight in kilograms:  "))
      4 
      5 weight_in_lbs = weight * float

TypeError: 'float' object is not callable

The error occurs because we assigned the value 2.205 to “float“. Then we tried to call the built-in float() method, but float is now a floating-point number.

Solution

We can name our conversion variable something more meaningful to solve this error. Let’s call it “conversion”. Then we can call the float() method safely. Let’s look at the revised code:

conversion = 2.205

weight = float(input("Enter weight in kilograms:  "))

weight_in_lbs = weight * conversion

print(f'{weight} kg is equivalent to {round(weight_in_lbs,1)} lbs')

Let’s run the code to get the result:

Enter weight in kilograms:  85
85.0 kg is equivalent to 187.4 lbs

The program takes the input from the user in kilograms, multiplies it by the conversion value and returns the converted value to the console.

Summary

Congratulations on reading to the end of this tutorial! To summarize, TypeError ‘float’ object is not callable occurs when you try to call a float as if it were a function. To solve this error, ensure any mathematical operations you use have all operators in place. If you multiply values, there needs to be a multiplication operator between the terms. Ensure that you name your float objects after their purpose in the program and not as “float”.

For further reading on “not callable” errors, go to the article: How to Solve Python TypeError: ‘dict’ object is not callable

To learn more about Python, specifically for data science and machine learning, go to the online courses page on Python.

Have fun and happy researching!

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Floating-point values are not callable. This is because floating points store numerical values. They are not functions that return a particular value when called. If you try to call a floating-point value as if it were a function, you encounter a “TypeError: ‘float’ object is not callable” error.

In this guide, we discuss how this error works and why you may find it in your code. We walk through an example scenario to help you learn how to fix it.

TypeError: ‘float’ object is not callable

A set of parentheses denotes a function call. A function call instructs the contents of a function to run. Only functions can be called. Other values, like floating points, do not return values, and so they cannot be called.

The “TypeError: ‘float’ object is not callable” error happens if you follow a floating point value with parenthesis. This can happen if:

• You have named a variable “float” and try to use the float() function later in your code.
• You forget an operand in a mathematical problem.

Let’s look at both of these potential scenarios in detail.

Scenario #1: Naming a Variable “float”

Let’s write a program that calculates the tips each member of the wait staff at a restaurant are due. The restaurant splits all the tips equally.

We start by asking the user to tell the program how much was received in tips and how many staff members were working on a particular day using the input() method:

staff_working = input("How many staff were working today? ")
float = float(input("How much was earned in tips? "))

Next, we write a math equation that calculates how much each member of the wait staff is due in tips:

staff_due = float / float(staff_working)
rounded = round(staff_due, 2)

print(rounded)

We round the amount that each staff member is due to two decimal places so that we have a monetary value that we can give to each staff member in tips. We print this rounded amount to the console. Next, run our code and see what happens:

How many staff were working today? 7
How much was earned in tips? 300
Traceback (most recent call last):
  File "main.py", line 5, in <module>
	rounded = round(staff_due, 2)
TypeError: 'float' object is not callable

Our code returns an error. This is because we have assigned a floating point value to a variable called “float”. Later in our code, we try to use the float() function to convert a value to a float. Because we have assigned “float” a numerical value, our code cannot call the float() function.

To solve this problem, we need to rename our “float” variable:

staff_working = input("How many staff were working today? ")
earned_in_tips = float(input("How much was earned in tips?"))

staff_due = earned_in_tips / float(staff_working)
rounded = round(staff_due, 2)

print(rounded)

We have renamed the variable “float” to “earned_in_tips”. Let’s run our code:

How many staff were working today? 7
How much was earned in tips? 300
42.86

Our code runs successfully. Each member of the wait staff is due $42.86 in tips.

Scenario #2: Missing Mathematical Operator

The cause of the “TypeError: ‘float’ object is not callable” error can often be down to a missing mathematical operator.

The restaurant is offering a bonus program where the restaurant applies a 5% increase to all the tips earned in a day. This means that the wait staff will earn more money at the end of the day, depending on how much in tips they collect.

To account for this increase, we need to revise our formula for calculating the tips due to be given to the staff members:

staff_working = input("How many staff were working today? ")
earned_in_tips = float(input("How much was earned in tips? "))

staff_due = 1.05 (earned_in_tips / float(staff_working))
rounded = round(staff_due, 2)

print(rounded)

Our code calculates the amount each staff member is due by dividing how much is earned in tips by the number of staff working. We multiply this by 1.05 to calculate a 5% increase in the total tips due for each staff member. Let’s run our code:

How many staff were working today? 7
How much was earned in tips? 300
Traceback (most recent call last):
  File "main.py", line 4, in <module>
	staff_due = 1.05 (earned_in_tips / float(staff_working))
TypeError: 'float' object is not callable

We encounter an error. This is because we have forgotten a mathematical operator in our code. 1.05 is followed immediately by a set of parenthesis. Python treats this as a function call on the 1.05 value. Our “staff_due” formula should include a multiplication sign (*):

staff_due = 1.05 * (earned_in_tips / float(staff_working))

Our new code separates the 1.05 value and the result of our math equation in brackets with a multiplication sign. Let’s run our code:

How many staff were working today? 7
How much was earned in tips? 300
45.0

Each member of the wait staff is entitled to $45.00 from the tip pot. This includes the 5% bonus the restaurant is offering its staff.

Conclusion

The “TypeError: ‘float’ object is not callable” error is raised when you try to call a floating-point number as a function.

You can solve this problem by ensuring that you do not name any variables “float” before you use the float() function. If that does not solve the problem, make sure that your code includes all the right mathematical operands.

Now you’re ready to solve this common Python error like a pro!

Have you ever seen the TypeError object is not callable when running one of your Python programs? We will find out together why it occurs.

The TypeError object is not callable is raised by the Python interpreter when an object that is not callable gets called using parentheses. This can occur, for example, if by mistake you try to access elements of a list by using parentheses instead of square brackets.

I will show you some scenarios where this exception occurs and also what you have to do to fix this error.

Let’s find the error!

What Does Object is Not Callable Mean?

To understand what “object is not callable” means we first have understand what is a callable in Python.

As the word callable says, a callable object is an object that can be called. To verify if an object is callable you can use the callable() built-in function and pass an object to it. If this function returns True the object is callable, if it returns False the object is not callable.

callable(object)

Let’s test this function with few Python objects…

Lists are not callable

>>> numbers = [1, 2, 3]
>>> callable(numbers)
False

Tuples are not callable

>>> numbers = (1, 2, 3)
>>> callable(numbers)
False

Lambdas are callable

>>> callable(lambda x: x+1)
True

Functions are callable

>>> def calculate_sum(x, y):
...     return x+y
... 
>>> callable(calculate_sum)
True

A pattern is becoming obvious, functions are callable objects while data types are not. And this makes sense considering that we “call” functions in our code all the time.

What Does TypeError: ‘int’ object is not callable Mean?

In the same way we have done before, let’s verify if integers are callable by using the callable() built-in function.

>>> number = 10
>>> callable(number)
False

As expected integers are not callable 🙂

So, in what kind of scenario can this error occur with integers?

Create a class called Person. This class has a single integer attribute called age.

class Person:
    def __init__(self, age):
        self.age = age

Now, create an object of type Person:

john = Person(25)

Below you can see the only attribute of the object:

print(john.__dict__)
{'age': 25}

Let’s say we want to access the value of John’s age.

For some reason the class does not provide a getter so we try to access the age attribute.

>>> print(john.age())
Traceback (most recent call last):
  File "callable.py", line 6, in <module>
    print(john.age())
TypeError: 'int' object is not callable

The Python interpreter raises the TypeError exception object is not callable.

Can you see why?

That’s because we have tried to access the age attribute with parentheses.

The TypeError‘int’ object is not callable occurs when in the code you try to access an integer by using parentheses. Parentheses can only be used with callable objects like functions.

What Does TypeError: ‘float’ object is not callable Mean?

The Python math library allows to retrieve the value of Pi by using the constant math.pi.

I want to write a simple if else statement that verifies if a number is smaller or bigger than Pi.

import math

number = float(input("Please insert a number: "))

if number < math.pi():
    print("The number is smaller than Pi")
else:
    print("The number is bigger than Pi")

Let’s execute the program:

Please insert a number: 4
Traceback (most recent call last):
  File "callable.py", line 12, in <module>
    if number < math.pi():
TypeError: 'float' object is not callable

Interesting, something in the if condition is causing the error ‘float’ object is not callable.

Why?!?

That’s because math.pi is a float and to access it we don’t need parentheses. Parentheses are only required for callable objects and float objects are not callable.

>>> callable(4.0)
False

The TypeError‘float’ object is not callable is raised by the Python interpreter if you access a float number with parentheses. Parentheses can only be used with callable objects.

What is the Meaning of TypeError: ‘str’ object is not callable?

The Python sys module allows to get the version of your Python interpreter.

Let’s see how…

>>> import sys
>>> print(sys.version())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'str' object is not callable

No way, theobject is not callable error again!

Why?

To understand why check the official Python documentation for sys.version.

That’s why!

We have added parentheses at the end of sys.version but this object is a string and a string is not callable.

>>> callable("Python")
False

The TypeError‘str’ object is not callable occurs when you access a string by using parentheses. Parentheses are only applicable to callable objects like functions.

Error ‘list’ object is not callable when working with a List

Define the following list of cities:

>>> cities = ['Paris', 'Rome', 'Warsaw', 'New York']

Now access the first element in this list:

>>> print(cities(0))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'list' object is not callable

What happened?!?

By mistake I have used parentheses to access the first element of the list.

To access an element of a list the name of the list has to be followed by square brackets. Within square brackets you specify the index of the element to access.

So, the problem here is that instead of using square brackets I have used parentheses.

Let’s fix our code:

>>> print(cities[0])
Paris

Nice, it works fine now.

The TypeError‘list’ object is not callable occurs when you access an item of a list by using parentheses. Parentheses are only applicable to callable objects like functions. To access elements in a list you have to use square brackets instead.

Error ‘list’ object is not callable with a List Comprehension

When working with list comprehensions you might have also seen the “object is not callable” error.

This is a potential scenario when this could happen.

I have created a list of lists variable called matrix and I want to double every number in the matrix.

>>> matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
>>> [[2*row(index) for index in range(len(row))] for row in matrix]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <listcomp>
  File "<stdin>", line 1, in <listcomp>
TypeError: 'list' object is not callable

This error is more difficult to spot when working with list comprehensions as opposed as when working with lists.

That’s because a list comprehension is written on a single line and includes multiple parentheses and square brackets.

If you look at the code closely you will notice that the issue is caused by the fact that in row(index) we are using parentheses instead of square brackets.

This is the correct code:

>>> [[2*row[index] for index in range(len(row))] for row in matrix]
[[2, 4, 6], [8, 10, 12], [14, 16, 18]]

Conclusion

Now that we went through few scenarios in which the errorobject is not callable can occur you should be able to fix it quickly if it occurs in your programs.

I hope this article has helped you save some time! 🙂

So you have been presented with the TypeError: ‘float’ object is not callable in Python, but unsure how to fix? Well read on so we can get you a solution.

First things an overview of a Float

A float is any number that can contain a decimal place separating an integer from the fractions to the right of the decimal point.

As an example, in the below code, we have the exact same number. But when a computer comes to read it, it treats them differently, due to the fact that b has a decimal point and a fraction to the right of it.

a = 1
b = 1.0

print (type(a))
print (type(b))

Output:
<class 'int'>
<class 'float'>

So how in a piece of code would this error occur?

In the below code, the error occurs. The reason behind this is that float is an actual function that changes a value to a float data type.

As a result, you cannot assign a variable name as “float” and then call it separately in its code. Python specifically does not allow a programmer to use a function as a variable name.

a= float(10)
b= float(11)
c= float(12)
float = a

d = float(a/b*c)
print(d)

Output:
d = float(a/b*c)
TypeError: 'float' object is not callable

So how is this fixed?

In order to fix this, we rename the variable “float” to something else, and make sure that the new name is not another function name!

As can be seen when we do this, the below output runs as expected with no errors:

a= float(10)
b= float(11)
c= float(12)
float_value = a   ===> This line was corrected from above from "float" to "float_value"

d = float(a/b*c)
print(d)

Output: 
10.909090909090908

In summary the crux of this problem is that when creating a variable, it cannot be a function name.

You can see similar posts here on TypeErrors.

Have you seen these posts?

TypeError: ‘float’ object is not callable

TypeError: ‘int’ object is not callable