Typeerror: ‘str’ object is not callable: How to fix it in Python

Although Python is always known as a simple-to-use programming language, it still causes some errors if you aren’t careful. During the process working with Python, you will easily face the Typeerror: str’ object is not callable. However, you don’t need to worry because this error can be solved with ease. In this blog, ArrowHiTech will deliver you the topic about what causes Typeerror: python str object is not callable and the best ways to fix it in Python. Now, let’s explore right now! 

What does Typeerror: str’ object is not callable mean?

A TypeError is the Python’s error message we’ve received. This indicates that we’re attempting to perform an operation on a value whose data type doesn’t support it. Now, let’s have a glance at the rest of our message to see what’s going on:

typeerror: str’ object is not callable

In case you try to call a string like a function, you’ll get an error. This is due to the fact that strings are not functions. Then, you have to add () to the end of a function name in order to call it.

Typeerror str object is not callable
Typeerror: ‘str’ object is not callable

What’s more, when you assign a variable named “str” and then try to use the str() function, you’ll get this error. You can’t use the str() method in Python because it understands “str” as a string.

For more details, we will bring you two cases of appearing typeerror: str’ object is not callable. Then, let’s take a look below.

Related post: Python if else in one line: The simple guide to use it with examples

Two scenarios occurring Typeerror: str’ object is not callable

Declaring a Variable Called “str”

To begin, imagine that we are creating a program that determines how many years a child has till they reach the age of eighteen. Then, this value is printed to the console.

Then, you should start by utilizing an input() statement to get the young person’s current age:

str = input(“What is your age? “)

Not only that, we figure out how many years a young person has till they become eighteen. Then, we can accomplish this by subtracting 18 from the value a user has given our program.

years_left = 18 – int(str) 

In order to the age integer, we use the int() method. Thanks to it, we are able to deduct 18 from the user’s age.

After that, this value will be converted to a string and printed to the console. Besides, because we need to concatenate this value into a string, we have to transform it to a string. Then, all values must be formatted as strings in order to accomplish this.

Way to solve Typeerror str object is not callable
Way to solve python str object is not callable

Code of Typeerror: str’ object is not callable

Now, let’s turn the value of “years left” to a console command:

years_left = str(years_left)

print(“You have ” + years_left + ” years left until you turn 18.”)

For more details, this code displays a message indicating how many years a user has till they reach the age of eighteen. Then, you should check out what occurs when you run our code:

What is your age? 7

Traceback (most recent call last):

  File “main.py”, line 5, in <module>

years_left = str(years_left)

TypeError: ‘str’ object is not callable

In addition, our code throws an exception. We attempted to translate the value of “years left” using the str() function. We declared a variable called “str” earlier in our application. In our app, Python interprets “str” as a string rather than a function.

In order to fix the problem, rename the variable “str” to “age”:

age = input(“What is your age? “)

years_left = 18 – int(age) 

years_left = str(years_left)

print(“You have ” + years_left + ” years left until you turn 18.”)

Because we renamed our variable, Python will call it with the str() function. There isn’t a variable with that name any longer. Then, let’s follow the codes below:

What is your age? 7

You have 11 years left until you turn 18.

Through our code, you will properly calculate the number of years before a young individual becomes 18. 

Typeerror: ‘str’ object is not callable: Example of String Formatting Using %

A mistake in string formatting can also produce this issue.

First and foremost, let’s update our previous software with a few new features. We start by asking for a user’s name. Second, we’ll utilize the percent formatting technique to create a message that shows a user how many years they have till they are 18.

Then, let’s begin by requesting a user’s name:

name = input(“What is your name? “)

python programming language
Python programming language

What’s more, the next step is to update our print() code to use the percent string formatting syntax. This is because when formatting numerous values into a string, the percent syntax is easier to read. The code we use to format the message we’ll show a user is as follows:

Code of Typeerror: str’ object is not callable

print(“%s, you have %s years left until you turn 18.”(name, age))

As a result, you will get the output like below:

name = input(“What is your name? “)

age = input(“What is your age? “)

years_left = 18 – int(age) 

years_left = str(years_left)

print(“%s, you have %s years left until you turn 18.”(name, age))

In that case, the variables “name” and “age” are substituted for the string type %s symbol in our code. Then, you should apply our code:

Traceback (most recent call last):

  File “main.py”, line 7, in <module>

print(“%s, you have %s years left until you turn 18.”(name, age))

TypeError: ‘str’ object is not callable

Because we failed to utilize the % operator to separate our string and the values we want to add to it, our code produces an error.

As the string is followed by parenthesis, our code thinks we’re trying to call ” %s, you have %s years until you reach 18.” as a function.

Besides, we add a percentage sign between “percent s, you have percent s years till you become 18.” and (name, age) in our code to fix this error:

print(“%s, you have %s years left until you turn 18.” % (name, age))

This revision fixes the error:

What is your name? Alex

What is your age? 7

Alex, you have 11 years left until you turn 18.

In conclusion

All in all, when working with Python, if you are not careful, you can easily get unexpected errors. And, Typeerror: str’ object is not callable is one of the most popular mistakes with a lot of people. ArrowHiTech hopes this blog is helpful and you can take advantage of it whenever you have difficulties. Then, let’s continue to keep track of us to get more beneficial articles. contact to our mobile app development services if have any questions

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