win_env_var_explorer

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Filename: win_env_var_explorer.py
# Version: 1.0.0
# Author: Jeoi Reqi

"""
This script allows users to explore and display Windows environment variables grouped by categories.
Users can navigate through a menu to select a category of environment variables and then choose a specific variable
within that category to display its current value.
The script provides a user-friendly interface for interacting with
environment variables, making it easier for users to manage and understand their Windows environment configuration.

Requirements:
- Python 3
- Windows operating system

Usage:
- Run the script using Python 3 in a Windows environment.

Additional Notes:
- Ensure that Python 3 is installed on your system.
- This script provides read-only access to environment variables and does not modify them.
"""

import os

# Dictionary of environment variables by category
variables = {
    "System Information": {
        1: "ALLUSERSPROFILE",
        2: "COMPUTERNAME",
        3: "NUMBER_OF_PROCESSORS",
        4: "OS",
        5: "PROCESSOR_ARCHITECTURE",
        6: "SYSTEMDRIVE",
        7: "SYSTEMROOT",
        8: "WINDIR"
    },
    "User Information": {
        1: "APPDATA",
        2: "HOMEDRIVE",
        3: "HOMEPATH",
        4: "LOCALAPPDATA",
        5: "USERDOMAIN",
        6: "USERNAME",
        7: "USERPROFILE"
    },
    "File Paths": {
        1: "CD",
        2: "CommonProgramFiles",
        3: "COMMONPROGRAMFILES(x86)",
        4: "ProgramData",
        5: "ProgramFiles",
        6: "ProgramFiles(x86)",
        7: "ProgramW6432",
        8: "PSModulePath",
        9: "Public",
        10: "TEMP",
        11: "TMP"
    },
    "Network": {
        1: "ClientName",
        2: "LOGONSERVER",
        3: "HOMESHARE",
        4: "OneDrive",
        5: "OneDriveCommercial",
        6: "OneDriveConsumer",
        7: "UserDnsDomain",
        8: "%SessionName%"
    },
    "Command Interpreter": {
        1: "COMSPEC",
        2: "CMDEXTVERSION",
        3: "CMDCMDLINE",
        4: "PROMPT"
    },
    "Date and Time": {
        1: "DATE",
        2: "TIME"
    },
    "Miscellaneous": {
        1: "ERRORLEVEL",
        2: "PATHEXT",
        3: "RANDOM"
    }
}

# Main loop
while True:
    # Display categories menu
    print("\nChoose a category of environment variables (type '0' to exit):\n")
    for num, category in enumerate(variables.keys(), 1):
        print(f"{num:02}. {category}")

    # Get user input for category choice
    category_choice = input("\nEnter the number of the category you want to explore: ")

    # Exit if category choice is '0'
    if category_choice == '0':
        print("\nExiting...\tGoodBye!\n")
        break

    # Validate category choice
    if category_choice.isdigit() and 1 <= int(category_choice) <= len(variables):
        category_choice = int(category_choice)
        category_name = list(variables.keys())[category_choice - 1]

        # Display variables submenu for selected category
        print(f"\n{category_name} variables:\n")
        category_variables = variables[category_name]
        for num, var in sorted(category_variables.items()):
            print(f"{num:02}. {var}")

        # Get user input for variable choice
        variable_choice = input("\nEnter the number of the variable you want to display (or '0' to go back): ")

        # Exit submenu if variable choice is '0'
        if variable_choice == '0':
            continue

        # Validate variable choice
        if variable_choice.isdigit() and int(variable_choice) in category_variables:
            selected_variable = category_variables[int(variable_choice)]
            value = os.environ.get(selected_variable)
            if value:
                print(f"\n\nThe value of {selected_variable} is: {value}\n\n")
            else:
                print(f"\n{selected_variable} is not set.\n")
        else:
            print("\nInvalid choice!\n")
    else:
        print("\nInvalid category choice!\n")