Sqlite3 3 error, what's the error out of the blue?

Question

Python

Here is the code:

import sqlite3 
db = sqlite3.connect('server.sqlite') 
sql = db.cursor() 
sql.execute("""CREATE TABLE IF NOT EXISTS _Users_ (name TEXT)""") 
db.commit() 
UserName = input("Ваш ник?: ") 
sql.execute("SELECT name FROM _Users_") 
 
sql.execute("INSERT INTO _Users_ VALUES (?)", (UserName)) 
 
db.commit() 
for i in sql.execute("SELECT * FROM _Users_"): 
 print("Вот все ники:" + i)

Here is the error:
sql.execute("INSERT INTO _Users_ VALUES (?)", (UserName))
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 8 supplied.

You can write 1 letter in the input, and everything will be fine, without an error, but if there are 2 or more letters, then here is the error. How to make that words can be written to the database?

Answer 1

sql.execute("INSERT INTO _Users_ VALUES (?)", ((UserName,)))