Quick notes, allows for users to create and read notes in cmd help in application for help. Made using python3

db.json

{"help" : "Add a note by typing in one or more keywords, this is the 'tag' that you can use to find it.\nremove a note by putting a '/' in front, feel free to try it on deleteme right now, using '/deleteme'\nsearch for a note or just get its content using '?', when you specify a note it will return either nothing, indicating that it does not exist or the note you saved using that tag.\n you can also put a regex after the '?' to find all notetags that match that desciption.",
"deleteme" : "The help told you to delete me? Sure, go ahead, end my life. You dont have to feel bad."}

quicknotes.py

import json
import sys,re
a = {}
out = ""
inp = ""
with open('db.json','r') as data:
    a = json.load(data)
while True:
    inp = input(out + '\nnext command:').lower()
    if inp == 'end':
        with open('db.json','w') as data:
            json.dump(a,data)
        sys.exit()
    elif inp[0] == '/':
        if inp[1:] in a:
            del(a[inp[1:]])
    elif inp[0] == '?':
        rall = list(a.keys())
        rshow = []
        if inp[1:] in a:
            print(a[inp[1::]])
        else:
            try:
                rshow = [x for x in rall if re.search(inp[1:],x)]
                print('Results:\n' + '\n'.join(rshow))
            except Exception:
                print('invalid regex for the search entered.')

    elif inp in a:
        out = a[inp]
    else:
        a[inp] = input('What do you want to save here?') + '\n'
        if a[inp] == '':
            del(a[inp])
            out = ''