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TypeError: 'float' object cannot be interpreted as an integer 

26 Feb 2020 12:24 pm || 0

In this article, we will learn about the TypeError: ‘float’ object can not be interpreted as an integer.

This error will occur in all the functions or methods. Where the function or method accepts only the integer value as a parameter. But instead, we have passed float values. The most common example is the range function. Since the range function only accepts an integer as a parameter.

For example, when we divide 16 by 8 using division operator ‘/’ in python, it’ll return a float value i.e. 2.0 and not an integer. This raises an error when we want an int as a parameter, but we have a float value.

TypeError: 'float' object cannot be interpreted as an integer

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

Example 1:

for i in range(3.0):
     print(i)
print('end of loop')

Output:

File "float.py", line 1, in <module>
    for i in range(3.0):
TypeError: 'float' object cannot be interpreted as an integer

In the above example, we did not perform any arithmetic operations. Instead, we passed a float value as a range parameter. In this case, the cause for the TypeError is that the range function does not take float value as a parameter.

Solution:

for i in range(3):
     print(i)
print('end of loop')

Output:

0
1
2
end of loop

Example 2:

for i in range(16/8):
     print(i)
print('end of loop')

Output:

Traceback (most recent call last):
File "pyprogram.py", line 1, in <module>
for i in range(16/8):
TypeError: 'float' object cannot be interpreted as an integer

In the above example, when we performed division operation inside the range() function. We got a float value (2.0). But the range function takes only an integer value as a parameter.

Thus the error “TypeError: 'float' object cannot be interpreted as an integer” is encountered.

Solution:

for i in range(5//8):
print(i)
print('end of loop')

Output:

0
1
end of loop

Unlike the division operator ‘/’ the floor division operator ‘//’ in python, returns an integer value. The floor division operator removes the digits after the decimal point. Thus we get an integer value.

So on dividing 16 by 8 using floor division operator ‘//’ we get ‘2’ as a parameter in range function. Thus no error is encountered, and we get the desired output.