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Are you getting an “Object of Type ‘int’ has no len()” error in Python?

Basically, an integer by design is to count up a number of apples or a number of people.

You cannot break it down to constituent parts like a hundred is made up of 10, 20, 30, etc.

It cannot be viewed as having a length as a description of the number of currents of an object.

It cannot be 90+10 or 99+1, it’s just one figure (e.g. 100).

Hence, if you’re trying to call a method on an “int” type of variable, you will get an error.

In this guide, you’ll learn how to fix “Object of Type ‘int’ has no len()” in Python, Django, Flask, Gekko, or Geopandas.

How to Fix “Object of Type ‘int’ has no len()”

Before (Wrong):

data = 100
print(type(data))
print(len(data))

If you run this command, you’ll get the “TypeError: object of type ‘int’ has no len()” error.

This is because you’re trying to call a method on an “int” type of variable.

There are a few methods to fix this.

Fix 1 (Correct):

data = "100"
print(type(data))
print("Length of string is ", len(data))
data = [100,200,300]

Fix 2 (Correct):

data = "100"
print(type(data))
print("Length of list is ", len(data))
data = [100,200,300]

data = "100"
print(type(data))
print("Length of tuple is ", len(data))
data = {"Age": 1, "Name": 2}

Fix 4 (Correct):

data = "100"
print(type(data))
print("Length of a dictionary is ", len(data))

The most common reason for the error is that you’re trying to call a method on an “int” type of variable.

This will only work if you called a “len()” function on a “list” type of variable.

Further reading