os functions - 55 days - Learn Python online for 100 days

Jul 10, 2023#python学习84

AI Translation

This post is translated from Chinese into English through AI.View Original

AI-generated summary

The code is a "Life Organizer" program that allows users to add, remove, view, and edit tasks. It reads a file called "to.do" to retrieve the task list and saves any changes made by the user. It also creates a backup of the "to.do" file in a directory called "backup" with a random file name. The program uses the "os" module to perform various operations such as reading directories, creating directories, renaming files, and copying files.

Record#

Today I learned about operating system functions.
os.os.listdir() reads directories.
os.mkdir("Hello") creates a directory.
os.rename() renames files.
os.popen(f"cp to.do backup/{bkname}") is a copy command. ChatGPT says this function is deprecated, and the latest one is subprocess.run(["cp", "to.do", f"backups/{name}"]).
Today's exercise is to modify the code for day 51 and add a behavior to save to a specified directory with a random file name before automatic saving.

CODE#

import os, random

print("🌟Life Organizer🌟")
print()
todolist = []
todoinfo = []
try:
  f = open("to.do", "r")
  todolist = eval(f.read())
  f.close
except:
  fileExists = False


def todoprint():
  for row in todolist:
    for name in row:
      print(f"{name: ^10}", end=" | ")
    print()


select = "again"
while True:
  os.system("clear")
  if select == "again":
    print("Menu: ")
    print("1: Add ")
    print("2: Remove ")
    print("3: View ")
    print("4: Edit ")
    menu = input("")
    if menu.strip().lower()[0] == "a":
      task = input("What is the task? > ")
      due = input("When is it due by? > ")
      priority = input("What is the priority? > ")
      todoinfo = [task, due, priority]
      todolist.append(todoinfo)
      print("Thanks, this task has been added.")
      todoprint()
    elif menu.strip().lower()[0] == "r":
      name = input("Which one do you want remove? > ")
      for row in todolist:
        if name in row:
          todolist.remove(row)
          print("Thanks, this task has been removed.")
        else:
          print(f"{name} is not in the todolist")
    elif menu.strip().lower()[0] == "v":
      todoprint()
    elif menu.strip().lower()[0] == "e":
      name = input("Which one do you want remove? > ")
      for row in todolist:
        if name in row:
          todolist.remove(row)
          print("Thanks, this task has been removed.")
        else:
          print(f"{name} is not in the todolist")
      task = input("What is the task? > ")
      due = input("When is it due by? > ")
      priority = input("What is the priority? > ")
      todoinfo = [task, due, priority]
      todolist.append(todoinfo)
      print("Thanks, this task has been added.")
      todoprint()

    files = os.listdir()
    if "backup" not in files:
      os.mkdir("backup")
    if "to.do" in files:
      bkname = f"{random.randint(1,99999999)}.txt"
      os.popen(f"cp to.do backup/{bkname}")

    f = open("to.do", "w")
    f.write(str(todolist))
    f.close()

  elif select == "quit":
    break

  select = input("Do you want to see the menu again or quit? ")

import os, random print("🌟Life Organizer🌟") print() todolist = [] todoinfo = [] try: f = open("to.do", "r") todolist = eval(f.read()) f.close except: fileExists = False def todoprint(): for row in todolist: for name in row: print(f"{name: ^10}", end=" | ") print() select = "again" while True: os.system("clear") if select == "again": print("Menu: ") print("1: Add ") print("2: Remove ") print("3: View ") print("4: Edit ") menu = input("") if menu.strip().lower()[0] == "a": task = input("What is the task? > ") due = input("When is it due by? > ") priority = input("What is the priority? > ") todoinfo = [task, due, priority] todolist.append(todoinfo) print("Thanks, this task has been added.") todoprint() elif menu.strip().lower()[0] == "r": name = input("Which one do you want remove? > ") for row in todolist: if name in row: todolist.remove(row) print("Thanks, this task has been removed.") else: print(f"{name} is not in the todolist") elif menu.strip().lower()[0] == "v": todoprint() elif menu.strip().lower()[0] == "e": name = input("Which one do you want remove? > ") for row in todolist: if name in row: todolist.remove(row) print("Thanks, this task has been removed.") else: print(f"{name} is not in the todolist") task = input("What is the task? > ") due = input("When is it due by? > ") priority = input("What is the priority? > ") todoinfo = [task, due, priority] todolist.append(todoinfo) print("Thanks, this task has been added.") todoprint() files = os.listdir() if "backup" not in files: os.mkdir("backup") if "to.do" in files: bkname = f"{random.randint(1,99999999)}.txt" os.popen(f"cp to.do backup/{bkname}") f = open("to.do", "w") f.write(str(todolist)) f.close() elif select == "quit": break select = input("Do you want to see the menu again or quit? ")