To-do-list-python-project-

Complete code

import sys import datetime

def help(): sa = """Usage :- $ ./todo add "todo item" # Add a new todo $ ./todo ls # Show remaining todos $ ./todo del NUMBER # Delete a todo $ ./todo done NUMBER # Complete a todo $ ./todo help # Show usage $ ./todo report # Statistics""" sys.stdout.buffer.write(sa.encode('utf8'))

def add(s): f = open('todo.txt', 'a') f.write(s) f.write("\n") f.close() s = '"'+s+'"' print(f"Added todo: {s}")

def ls(): try:

    nec()
    l = len(d)
    k = l

    for i in d:
        sys.stdout.buffer.write(f"[{l}] {d[l]}".encode('utf8'))
        sys.stdout.buffer.write("\n".encode('utf8'))
        l = l-1

except Exception as e:
    raise e

def deL(no): try: no = int(no) nec() with open("todo.txt", "r+") as f: lines = f.readlines() f.seek(0) for i in lines: if i.strip('\n') != d[no]: f.write(i) f.truncate() print(f"Deleted todo #{no}")

except Exception as e:
    print(f"Error: todo #{no} does not exist. Nothing deleted.")

def done(no): try:

    nec()
    no = int(no)
    f = open('done.txt', 'a')
    st = 'x '+str(datetime.datetime.today()).split()[0]+' '+d[no]
    f.write(st)
    f.write("\n")
    f.close()
    print(f"Marked todo #{no} as done.")
     
    with open("todo.txt", "r+") as f:
        lines = f.readlines()
        f.seek(0)
        for i in lines:
            if i.strip('\n') != d[no]:
                f.write(i)
        f.truncate()
except:
    print(f"Error: todo #{no} does not exist.")

def report(): nec() try:

    nf = open('done.txt', 'r')
     c = 1
    for line in nf:
        line = line.strip('\n')
        don.update({c: line})
        c = c+1
    print(
        f'{str(datetime.datetime.today()).split()[0]} Pending : {len(d)} Completed : {len(don)}')
except:
    print(
        f'{str(datetime.datetime.today()).split()[0]} Pending : {len(d)} Completed : {len(don)}')

def nec(): try: f = open('todo.txt', 'r') c = 1 for line in f: line = line.strip('\n') d.update({c: line}) c = c+1 except: sys.stdout.buffer.write("There are no pending todos!".encode('utf8'))

if name == 'main': try: d = {} don = {} args = sys.argv if(args[1] == 'del'): args[1] = 'deL' if(args[1] == 'add' and len(args[2:]) == 0): sys.stdout.buffer.write( "Error: Missing todo string. Nothing added!".encode('utf8'))

    elif(args[1] == 'done' and len(args[2:]) == 0):
        sys.stdout.buffer.write(
            "Error: Missing NUMBER for marking todo as done.".encode('utf8'))

    elif(args[1] == 'deL' and len(args[2:]) == 0):
        sys.stdout.buffer.write(
            "Error: Missing NUMBER for deleting todo.".encode('utf8'))
    else:
        globals()[args[1]](*args[2:])

except Exception as e:

    s = """Usage :-

$ ./todo add "todo item" # Add a new todo $ ./todo ls # Show remaining todos $ ./todo del NUMBER # Delete a todo $ ./todo done NUMBER # Complete a todo $ ./todo help # Show usage $ ./todo report # Statistics""" sys.stdout.buffer.write(s.encode('utf8'))