IntegrityError: datatype mismatch in Python using praw

问题

I am trying to write a reddit bot that takes the word "fuck" and see how many people say that on reddit. Here is the code:

import praw
import time
import re
import sqlite3

username = "LewisTheRobot"
password = "lewismenelaws"

conn = sqlite3.connect('reddit')
c = conn.cursor()
r = praw.Reddit(user_agent = "Reddit bot")

word_to_match = [r'\bfuck\b', r'\bfucking\b', r'\bfucks\b']

storage = []

r.login(username, password)

def run_bot():
    subreddit = r.get_subreddit("all")
    print("Grabbing subreddit!")
    comments = subreddit.get_comments(limit=200)
    print("Grabbing comments!")
    for comment in comments:
        comment_text = comment.body.lower()
        isMatch = any(re.search(string, comment_text) for string in word_to_match)
        if comment.id not in storage and isMatch and comment.author not in storage:
            print("We have found a fuck boy. Storing username: " + str(comment.author) + "into database.")
            storage.append(comment.author)
            c.execute("INSERT INTO users (id, Username, subreddit, comment) VALUES(?,?,?,?)", (str(comment.id), str(comment.author), str(comment.subreddit), str(comment.body)))
            conn.commit()

    print("There are currently " + str(len(storage)) + " fuck boys on reddit at the moment.")



while True:
    run_bot()
    time.sleep(2)

Whenever I run the bot it crashes whenever it finds a match and gives me this error.

From what I understand it means that something in the database isnt the right datatype to be inserted into my database. I am pretty sure it is the str(comment.body) section of the SQL setting. My SQLITE database has the comment field as a text field. Thanks for the help.

Here are the database credentials shown in DB Browser.

回答1:

The IntegrityError results from the insert statement using str(comment.id) as ID which is a string and not a integer as the schema requires.

But as that didn't work. As comment.id is as you give cogqssp, you'll need to change your schema. The field ID to be of type TEXT. And then your original code will work.

回答2:

Alright figured it out. My datatype for the ID field was an integer however reddit's ID for comments. example: "cogr0o4". So I changed that to the datatype "TEXT" and made sql statement convert it into a string.

来源：https://stackoverflow.com/questions/28423982/integrityerror-datatype-mismatch-in-python-using-praw

标签

python

sqlite

praw