Python __import__()

2021 VietMX PYTHON 0

The __import__() is a function that is called by the import statement.

The syntax of the __import__() function is:

__import__(name, globals=None, locals=None, fromlist=(), level=0)

1. __import__() Parameters

  • name – the name of the module you want to import
  • globals and locals – determines how to interpret name
  • fromlist – objects or submodules that should be imported by name
  • level – specifies whether to use absolute or relative imports

2. Use of __import__() is Discouraged

This __import__() function is not necessary for everyday Python program. It is rarely used and often discouraged.

This function can be used to change the semantics of the import statement as the statement calls this function. Instead, it is better to use import hooks.

And, if you want to import a module by name, use importlib.import_module().

3. Example: How __import()__ works?

mathematics = __import__('math', globals(), locals(), [], 0)
print(mathematics.fabs(-2.5))

Output

2.5

The fabs() method is defined in the math module. You can call this function using the following syntax:

import math
math.fabs(x)

However, in the above program, we changed the way fabs() works. Now, we can also access fabs() using the following syntax:

mathematics.fabs(x)

Related posts:

Python max()
Python help()
Python Deep Learning - Valentino Zocca & Gianmario Spacagna & Daniel Slater & Peter Roelants
Python String translate()
Python String isidentifier()
Python frozenset()
Python Program to Find Sum of Natural Numbers Using Recursion
Python bool()
Python Custom Exceptions
Python callable()
Python String isspace()
Python frozenset()
Python Program to Multiply Two Matrices
Python Program to Add Two Matrices
Python for Programmers with introductory AI case studies - Paul Deitel & Harvey Deitel
Python Program to Safely Create a Nested Directory
Deep Learning with Applications Using Python - Navin Kumar Manaswi
Python Program to Check the File Size
Python String format_map()
Python strftime()
Python Set update()
Python Program to Count the Number of Occurrence of a Character in String
Python Program to Capitalize the First Character of a String
Python divmod()
How to Get Started With Python?
Python *args and **kwargs
Python Namespace and Scope
Python Iterators
Python zip()
Python compile()
Python Program to Differentiate Between del, remove, and pop on a List
Python min()