pw_manager.pyw

#! python3
#pw.py - an insecure password locker program
import sys
import pyperclip
import shelve
#using sys module -> sys.argv
#saves password from the clipboard and 
# attaches it to given keyword 
# stores in shelve file
storage=shelve.open('storage')
if len(sys.argv) == 3 and sys.argv[1].lower() == 'save':
    #keyword gets stored into the storage object as a key:value 
    #checks if the key exists or not
    if sys.argv[2] not in storage:
        storage[sys.argv[2]] = pyperclip.paste()
    else:
        print(f"keyword '{sys.argv[2]}' already exists")
        print("to update existing keyword's content, type: update")
        print("to add into existing keyword, type: add")
        print("to delete existing keyword, type: del")


        usr=input()
        if usr.lower()=='update':
            storage[sys.argv[2]] = pyperclip.paste()
            print("keyword content updated")
            sys.exit()
        if usr.lower()=='add':
            storage[sys.argv[2]]+=pyperclip.paste()
            print("clipboard content added")
        if usr.lower()=='del':
            del storage[sys.argv[2]]
            print("keyword deleted")
            
        else:
            print('No changes performed')
            sys.exit()
elif len(sys.argv)==2:
    storage = shelve.open('storage')
    if sys.argv[1]=='list':
        pyperclip.copy(str(list(storage.keys())))
    if sys.argv[1] in storage:
        pyperclip.copy(storage[sys.argv[1]])
storage.close()