How to convert the resulting variable into a numeric one?

Question

Python

Good afternoon. Sorry I'm new.
I use a variable in the code (it reads the number of files in the directory), then I need to convert this variable into a numeric one, so that I can use it further for mathematical operations: example:

import os
def fcount(path):
    #Counts the number of files in a directory - коли
    count = 0
    for f in os.listdir(path):
        if os.path.isfile(os.path.join(path, f)):
            count += 1

    return count
a =  r"C:\Python" 
# a переменная которую надо конвертировать
c = float( input('Введите от фасованное количество продукта! ') )
d = a / c
print( str(d))

An error occurs.

Answer 1

Where exactly is this?

it reads the number of files in a directory

If you expect that
a = r"C:\Python"
magic will work for you, you are mistaken
. But writing the result of fcount execution into a is exactly what you need.

Answer 2

The above code should work, in theory. Please provide an example of the input that causes the error and the full text of the error.
Based on the conversion to float, I can only assume that you are entering a number with a decimal point ("2.3") and not a decimal point ("2.3").