setup.py

def environment():
    import os
    
    '''Prevents overwriting of the environment file'''
    settingList = ["Token", "Server IP", "Port", "Command Prefix", "Custom File"]
    if os.path.isfile('.env'): #Checks to see if there is an environment file
        overwrite = input("Would you like to change your current settings? (y/n) > ")
        overwrite = overwrite.lower() #Makes the input string lowercase
        if overwrite == "y" or overwrite == "yes":
            print("\nChoose settings to change")
            for i in settingList:
                print("{} - {}".format((settingList.index(i)+1), i))
            settingsChoice = input("\nInput the numbers of the settings you want to change\nYou can change multiple numbers by typing more than one (Example: 12345)\n > ")
        else:
            return #Exit function
    else:
        settingsChoice = "12345"

    '''Gets information'''
    if str(settingList.index("Token")+1) in settingsChoice:
        token = input("Input your bot token here > ")
    else:
        token = os.environ['TOKEN']
    if str(settingList.index("Server IP")+1) in settingsChoice:
        serverIP = input("Input your server URL/IP here > ")
    else:
        serverIP = os.environ['SERVER']
    if str(settingList.index("Port")+1) in settingsChoice:
        port = input("Input your bot port here (If you don't know it, leave blank) > ")
        if port == "":
            port = "25565" #Default Minecraft server port
    else:
        port = os.environ['PORT']
    if str(settingList.index("Command Prefix")+1) in settingsChoice:
        commandPrefix = input("If you want a custom command prefix, enter is here (Default is '?' - Leave bank for default)> ")
        if commandPrefix == "":
            commandPrefix = "?"
    else:
        commandPrefix = os.environ['PREFIX']
    if str(settingList.index("Custom File")+1) in settingsChoice:
        customFile = input("Would you like a custom file to add your code to? (y/n) > ")
        customFile = customFile.lower()
        if customFile == "y" or customFile == "yes":
            if os.path.isfile("Custom.py"):
                newCustom = input("Do you want to overwrite the current custom file? (y/n) > ")
                newCustom = newCustom.lower()
                if newCustom == "y" or newCustom == "yes":
                    oldFile = open("Custom.py", "r")
                    oldCode = oldFile.read()
                    oldFile.close()
                    if not os.path.exists("oldCustom"):
                        os.makedirs("oldCustom")
                    x = 0
                    copied = False
                    while copied == False:
                        backupPath = "oldCustom/custom{}.py".format(x)
                        if not os.path.isfile(backupPath):
                            backupFile = open(backupPath, "w")
                            backupFile.write(oldCode)
                            copied = True
                        x = x + 1
                    template = open("templates/customTemplate.py", "r")
                    customFile = open("Custom.py", "w")
                    customFile.write(template.read())
                    customFile.close()
                    template.close()
            else:
                template = open("templates/customTemplate.py", "r")
                customFile = open("Custom.py", "w")
                customFile.write(template.read())
                customFile.close()
                template.close()
            custom = "TRUE"
    else:
        custom = os.environ['CUSTOM']

    '''Concantinate into a string'''
    data = "TOKEN={}\nSERVER={}\nPORT={}\nPREFIX={}\nCUSTOM={}".format(token,serverIP,port,commandPrefix,custom) #Sets the format of the data

    '''Write data to the .env file'''
    creds = open(".env", "w")
    creds.write(data)
    creds.close()

    '''Verify the data has been written'''
    print("\nVerifying data..")
    verify = open(".env")
    readData = verify.read()
    verify.close()
    if data == readData:
        print("Data written successfully")
        return
    else:
        tryAgain = ("Error writing data. \n Try again? (y/n) > ")
        tryAgain = tryAgain.lower() #Makes the input string lowercase
        if tryAgain == "y" or tryAgain == "yes":
            environment()
        else:
            return
environment()