PYTHON PROGRAMMING: A Complete Overview to Master The Art of Data Science From Scratch Using Python for Business by Mark Whistler

Author:Mark Whistler [Whistler, Mark]
Language: eng
Format: azw3, epub
Published: 2020-10-13T16:00:00+00:00

The scope of a variable

It is not easy to access everything in Python and there will be differences in the length of the variables. However, the way we define the variable plays a critical role in determining the location and duration of access to the variables. The part of the program that gives you access to the variable is called the Scope, while the time it takes to access the variable is a lifetime.

Global variables refer to the variables defined in the body of the file. These variables are visible throughout the file and also in the file that imports specific data. As such, these variables cause a long-term impact that you may notice when working on your program. This is why it is not good to use global variables in the Python program. We recommend programmers to only add things to the global namespace if they plan to use it internationally. A local variable is a variable defined within another variable. You can access local variables from the region to which they are assigned. The variables are also available in the specific parts of the program.

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