Object of type int has no len python ошибка

It sounds like you have a mixed list of integers and strings and want to sort by length of the strings. If that is the case, convert the entire list to like types — strings — before sorting.

Given:

>>> li=[1,999,'a','bbbb',0,-3]

You can do:

>>> sorted(map(str, li), key=len)   
['1', 'a', '0', '-3', '999', 'bbbb']

If you want a two key sort by length then ascibetible, you can do:

>>> sorted(map(str, li), key=lambda e: (len(e), e))
['0', '1', 'a', '-3', '999', 'bbbb']

You can sort without changing the object type by adding str to the key function:

>>> sorted(li, key=lambda e: (len(str(e)), str(e)))
[0, 1, 'a', -3, 999, 'bbbb']

Are you trying to find the length of an integer value 🤔 and getting the “TypeError: an object of type ‘int’ has no len” error when developing in Python?

In the Python programming language, we can only find the length of iterable objects such as lists, strings, tuples, etc. but not individual integer values because we can iterate through iterable objects, whereas an individual integer value isn’t iterable. So we cannot find the length of an integer. Otherwise, we’ll get the “TypeError: the object of type ‘int’ has no len” error in Python.

In this article, we’ll discuss what is “TypeError: the object of type ‘int’ has no len” error in Python, why it occurs, and how to fix it. So let’s deep down into the topic.

What is the “TypeError: Object of Type ‘Int’ Has No Len()” Error in Python?

Do you need clarification about what causes the TypeError: object of type ‘int’ has no len in Python? But before discussing the solution, first, let’s see a demonstration of the error.

Code

x = 4
print(f"The Type of {x} is {type(x)}" )
len(x)

Output

As you can see in the above example, the type of x is int; it is not iterable to clearly understand it; let’s see does an integer value support len() function or not.

Code

x = 4
print(f"The Type of {x} is {type(x)}" )
print(dir(x))

Output

As you can see in the above code example, there isn’t any len() for integer objects.

To fix the TypeError: an object of Type ‘int’ has no len in Python, we can convert the integer value into a string to find its length.

Code

x = 4


print("Dir int")


print(f"The Type of {x} is {type(x)} n" )


print(dir(x))


# type casting int to string 
str_x = str(x) 
print("nnDir string")
print(f"The Type of {str_x} is {type(str_x)}")
print(f"The length of {str_x} is {len(str_x)}n") 
print(dir(str_x))

Output

You can see 👀 in the above code example the integer value isn’t supporting the int(), but when we type cast x to a string, it supports len().

Let’s use the len() function with some iterables like lists, tuples, and strings.

Code

# create list
billionaires = ["Elon", "Mark", "Jeff", "Bill"]
print(f"This length of {billionaires} is {len(billionaires)}n")
# lets loop thorught the iterable 'list'
for i in range(len(billionaires)):
 print(f"{i}) {billionaires[i]}")

Output

This lenght of ['Elon', 'Mark', 'Jeff', 'Bill'] is 4
0) Elon
1) Mark
2) Jeff
3) Bill

As we know that lists are iterable objects, we can find their length using the len() function and loop through it to access individual elements of it, as shown in the above example. Similarly, for any iterable, we can iterate by using a for loop.

Use Exception Handling to Fix the “TypeError: Object of Type ‘Int’ Has No Len()” in Python

Exception handling is a proactive strategy for error and exception handling in computer programming that helps in handling the errors before they crash the computer program. It is one of the most useful techniques in computer programming; let’s see how it assists us in handling the TypeError: an object of Type ‘int’ has no len before crashing our program.

Code

try:
 x = 4
 len(x)
except TypeError:



  


                       
  



 # customzie the error message
 print('You cannot find the length of an integer using len()')
print("The good thing is the program isn't crashed yetnisn’t this amazing?")

Output

You cannot find the lenght of an integer using len()
The good thing is the program isn't crashed yet
isn't this amazing?

As you can see in the above ☝️ code example, we’ve demonstrated how exception handling saves your program from crashing but instead gives you warnings and alerts that the program has some error in the form of a customized message.

Conclusion

To summarize the article on how to Fix the TypeError: the object of type ‘int’ has no len() in Python, we’ve discussed why it occurs and how to get rid of it. Furthermore, we’ve seen how to typecast an integer to a string to find its length using len() function.

In addition, we’ve discussed how to find the length of iterable like lists to loop through it, and at the end, we’ve used exception handling to handle the exceptions before crashing our Python program.

Let’s have a quick recap of the topics discussed in this article.

1. Why does the TypeError: the object of Type ‘int’ has no len occurs?
2. How to Fix the TypeError: Type’ int’ object has no len in Python?
3. How to type cast an integer?
4. How to loop through an iterable?
5. How to use exception handling to handle exceptions in Python?

If you have found this article helpful, don’t forget to share it with friends and the coding 🧑‍💻 community!

In this article, we will learn about the TypeError: object of type ‘int’ has no len.

What is TypeError: object of type ‘int’ has no len?

This error is generated when we try to calculate the length of an integer value. But integer don’t have any length. Thus the error is raised.

In this article, we will learn about the TypeError: object of type ‘int’ has no len.

What is TypeError: object of type ‘int’ has no len?

This error is generated when we try to calculate the length of an integer value. But integer don’t have any length. Thus the error is raised.

Let us understand it more with the help of an example.

Example

# Importing random module
import random 

# Using randit function of random module
var = random.randint(0, 20)

# Printing Random value
print("Random value: ",var)

# Printing length of variable
print("Length of variable: ",len(var))

Output

Random value:  18
  File "len.py", line 12, in <module>
    print("Length of variable: ",len(var))
TypeError: object of type 'int' has no len()

Explanation

In the above example, we imported the random module of python. There are various function available in random module of python. In this particular code, we used the randint() function. This function returns any random integer within the specified parameter value.

After generating the random integer we stored it in the variable ‘var’. And printed it in the next line. There’s no error encountered until now. But when we try to try to calculate the length of the variable ‘var’ in line-12 of the code. An error is encountered. This TypeError is raised because we were trying to calculate the length of an integer. And we know integers don’t have any length.

Solution

# Importing random module
import random 

# Using randit(start,end) function of random module
var = random.randint(0, 20)

# Printing Random value
print("Random value: ",var)

# Printing length of variable
print("Length of variable: ",len(str(var))) 

Output

Random value:  2
Length of variable:  1

Explanation

As discussed earlier we can not calculate the length of an integer. But we can calculate the length of the string. So what we can do is, change the integer value to the string. And then calculate the length of that string.

Here we used a built-in function str() to change ‘var’ to string.

Conclusion

This TypeError is raised when we try to calculate the length of an integer using len(). To work around this error we can convert the integer value to string. And then calculate the length of the string.