python import module from path code example

Example 1: python how to import library absoluth path

import sys
sys.path.append('/foo/bar/my_module')
# Considering your module contains a function called my_func, you could import it:
from my_module import my_func
# Or you could import the module as a whole,
import my_module

Example 2: how to import python

import random
from os import name, system
import time as t

Example 3: import local module python

# If the module is in the same directory:
import <module_name>

# If the module isn't in the same directory:
import sys
# insert at 1, 0 is the script path (or '' in REPL)
sys.path.insert(1, '/path/to/application/app/folder')

import <module_name>

Example 4: Python module import path setting

# import statement will search the following path in turn:
# 1. current directory of the script file which runs `import`
# 2. directories in the environ variable `PYTHONPATH`
# 3. An installation-dependent list of directories configured at the time Python is installed
# The resulting search path is accessible in the Python variable sys.path, which is obtained from a module named sys
# so, to include a path, say "/Users/me/myPackages", do the following:

import sys
sys.path.append(r'/Users/me/myPackages')
print(sys.path)

# to show a module path, e.g. pandas
import pandas
print(pandan.__file__)

Example 5: python3 import all files in directory

from inspect import isclass
from pkgutil import iter_modules
from pathlib import Path
from importlib import import_module

# iterate through the modules in the current package
package_dir = Path(__file__).resolve().parent
for (_, module_name, _) in iter_modules([package_dir]):

    # import the module and iterate through its attributes
    module = import_module(f"{__name__}.{module_name}")
    for attribute_name in dir(module):
        attribute = getattr(module, attribute_name)

        if isclass(attribute):            
            # Add the class to this package's variables
            globals()[attribute_name] = attribute

Example 6: python module initialization

import psutil