Python import class from another file

You can use an import statement to import the class from another file in Python. And if you want to access the class method, create an object and use a dot to access the method. The outside method can direct access using a module with a dot.

from folder.file import Klasa
#or 
from fileName import className

Or

from folder import file
k = file.Klasa()

Or again:

import folder.file as myModule
k = myModule.Klasa()

The import statement consists of the import keyword alongside the module’s name. Use prefix the module name with a . if not using a subdirectory.

Python import class from another file example

Simple example code Importing class from another file.

FileModule.py

class File:

    # methods
    def add(self, a, b):
        return a + b

    def sub(self, a, b):
        return a - b


# explicit function
def msg():
    print("Hello File class")

main.py

import FileModule

# Created a class object
object = FileModule.File()

# Calling and printing class methods
print(object.add(15, 5))
print(object.sub(15, 5))

# Calling the function
FileModule.msg()

Output:

Another example

Imagine we have to follow the directory structure:

Main
  |-- animal_def.py
  |-- file.py

The animal_def.py file contains a class as shown below:

class Animal:

    def print_animal(self):
        return 'This is an animal class'

Now use this class inside the file file.py.

From animal_def import Animal

The complete code inside the file.py will look something like this:

#file.py
# import Animal class
from animal_def import Animal

# create object of class
animal = Animal()

# call class method
print(animal.print_animal())

Output: This is an animal class

Do comment if you have any doubts or suggestions on this Python import topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.