from collections import Counter
import json


def get_txt(fn):
    try:
        with open(fn, encoding="utf-8") as f:
            return json.load(f)
    except FileNotFoundError:
        print("Файл не найден")


def sort(fn):
    txt = get_txt(fn)
    word_list = []
    symbols = "!@#$%^&*()\"_<>?,.[]{}`~'"

    for word in txt.split():
        clear_word = ""
        for letter in word:
            if letter.isalpha():
                clear_word += letter.lower()
        if clear_word not in symbols:
            word_list.append(clear_word)

    return word_list


filename = 'user.json'
clear_list = sort(filename)
print(Counter(clear_list))