Meaning In Python Import
Math is part of python s standard library which means that it s always available to import when you re running python.
Meaning in python import. 18 10 7 13 10 3 141592653589793 the import statement allows you to import one or more modules into your python program letting you make use of the definitions constructed in those modules. In the second line you access the pi variable within the math module. The import keyword in python is used to load other python source code files in to the current interpreter session.
This post discusses python s from module import and from package import how they behave and why it may be is a bad idea to use them. So exactly what does import mean. Functions such as importlib import module and built in import can also be used to invoke the import machinery.
From multiprocessing import win32 connection pipeconnection instead of. To refer to items from a module within your program s namespace you can use the from import statement. In the first line import math you import the code in the math module and make it available to use.
There are a few different ways to use import for example if we wanted to use the function join that lives in the path module of the os package. Python code in one module gains access to the code in another module by the process of importing it. You may also notice people importing a python module like this.
The import statement is the most common way of invoking the import machinery but it is not the only way. From multiprocessing import win32 connection pipeconnection the subtle difference being the period before multiprocessing. This is how you re use code and share it among multiple files or different projects.
Note that you write math pi and not just simply pi in addition to being a module math acts as a. It returns mean of the data set passed as parameters. But in tkinter i would have to specifically import things like messagebox colorchooser and filedialog despite having a from tkinter import command.