How to Dynamically Import a Python Module Using Its Full Path?

Dynamically Importing a Module Using its Full Path

In Python, most modules can be imported using their names as strings. However, there are scenarios where it may be necessary to import a module based on its absolute path. Here's a comprehensive guide to dynamically importing a module given its full path:

Python 3.5

import importlib.util
import sys

# Specify the module name and its full path
module_name = "module.name"
file_path = "/path/to/file.py"

# Create a specification for the module
spec = importlib.util.spec_from_file_location(module_name, file_path)

# Create the module object using the specification
module = importlib.util.module_from_spec(spec)

# Add the module to the system's module list
sys.modules[module_name] = module

# Execute the module's code
spec.loader.exec_module(module)

# Access the imported classes or functions
module.MyClass()

Python 3.3 and 3.4

from importlib.machinery import SourceFileLoader

# Specify the module name and its full path
module_name = "module.name"
file_path = "/path/to/file.py"

# Load the module using the SourceFileLoader
module = SourceFileLoader(module_name, file_path).load_module()

# Access the imported classes or functions
module.MyClass()

Python 2

import imp

# Specify the module name and its full path
module_name = "module.name"
file_path = "/path/to/file.py"

# Load the module using imp.load_source
module = imp.load_source(module_name, file_path)

# Access the imported classes or functions
module.MyClass()

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