Writing Python code involves several key stages, each contributing to the development of a functional and efficient program. Here’s a breakdown of these stages and the corresponding Python commands:

1. Setting and Declaration of Variables and Constants: Begin by defining variables and constants to store data. Use commands like variable_name = value for variable declaration and CONSTANT_NAME = value for constants.

2. Input from User: Prompt the user for input using the input() function. Assign the input to variables for further processing.

3. Process: a) Setting and Declaration: Reiterate variable declaration as needed within the process. b) Input: Utilize input obtained from the user within the process. c) Process: Perform calculations or logical operations using Python’s arithmetic and conditional operators. d) Output: Display results using print() function or store them in variables for later use.

4. Final Output: Present the final results to the user. This can be achieved by printing variables or messages using print().

Following these stages and corresponding Python commands ensures a systematic approach to coding, resulting in clear and effective Python programs.

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