#!/bin/python # display first letter in name # you can run this script with: python3 displayFirstLetterInNameInPython.py '< fullname >' import colorama, os, sys, traceback from colorama import Fore, Style from datetime import datetime colorama.init() def checkOs(): print("Started checking operating system at", datetime.now().strftime("%m-%d-%Y %I:%M %p")) if sys.platform == "win32": print(Fore.GREEN + "Operating System:", end=""); sys.stdout.flush() os.system('ver') print(Style.RESET_ALL, end="") operatingSystem = "Windows" elif sys.platform == "darwin": print(Fore.GREEN + "Operating System: ") os.system('sw_vers') print(Style.RESET_ALL, end="") operatingSystem = "macOS" elif sys.platform == "linux": print(Fore.GREEN + "Operating System: ") print(os.system('unrame -r')) print(Style.RESET_ALL, end="") operatingSystem = "Linux" print("Finished checking operating system at", datetime.now().strftime("%m-%d-%Y %I:%M %p")) print("") return operatingSystem def getName(operatingSystem): if operatingSystem == "Windows": name = str(input("Please type your name and press \"Enter\" key (Example: Vic Phan): ")) else: name = str(input("Please type your name and press \"return\" key (Example: Vic Phan): ")) print(Fore.BLUE + "Hello, {0}.".format(name) + Style.RESET_ALL) print("") return name def checkParameters(name): print("Started checking parameter(s) at", datetime.now().strftime("%m-%d-%Y %I:%M %p")) valid = True print("Parameter(s):") print("----------------------") print("name: {0}".format(name)) print("----------------------") if name == None or name == "": print(Fore.RED + "name is not set." + Style.RESET_ALL) valid = False if valid == True: print(Fore.GREEN + "All parameter check(s) passed." + Style.RESET_ALL) print("Finished checking parameter(s) at", datetime.now().strftime("%m-%d-%Y %I:%M %p")) print("") else: raise Exception("One or more parameter checks are incorrect.") def displayFirstLetterInName(): print("\nDisplay first letter in name in Python.\n") operatingSystem = checkOs() if len(sys.argv) >= 2: name = str(sys.argv[1]) else: name = getName(operatingSystem) try: checkParameters(name) startDateTime = datetime.now() print("Started displaying first letter in name at", startDateTime.strftime("%m-%d-%Y %I:%M %p")) lname=list(name) print(Fore.BLUE + "The first letter of your name is \"{0}\".".format(*lname)) print(Fore.GREEN + "Successfully displayed the first letter of name." + Style.RESET_ALL) finishedDateTime = datetime.now() print("Finished displaying first letter in name at", finishedDateTime.strftime("%m-%d-%Y %I:%M %p")) duration = finishedDateTime - startDateTime print("Total execution time: {0} second(s)".format(duration.seconds)) print("") except Exception: print(Fore.RED + "Failed to display first letter in name.") traceback.print_exc() exit("" + Style.RESET_ALL) displayFirstLetterInName()