Python Flask-TypeError:必需为整数(类型为str) [英] Python Flask - TypeError: an integer is required (got type str)

问题描述

我正在使用Python Flask构建一个简单的Web应用程序，但是当我尝试提交表单时，却收到了此错误消息-

I'm building a simple web-app in Python Flask but when I am trying to submit the form, I am getting this error message -

"TypeError:必须为整数(类型为str)"

"TypeError: an integer is required (got type str)"

from flask import Flask, render_template, request, flash, redirect, url_for, session, logging
from data import Articles
from flask_mysqldb import MySQL
from wtforms import Form, StringField, TextAreaField, PasswordField, validators
from passlib.hash import sha256_crypt

app = Flask(__name__)

# Config MySQL
app.config['MYSQL_HOST'] = 'localhost'
app.config['MYSQL_PORT'] = '8889'
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = '123456'
app.config['MYSQL_DB'] = 'myflaskapp'
app.config['MYSQL_CURSORCLASS'] = 'DictCursor'

#init MYSQL
mysql = MySQL(app)

Articles = Articles()

@app.route('/')
def index():
    return render_template('home.html')

@app.route('/about')
def about():
    return render_template('about.html')

@app.route('/articles')
def articles():
    return render_template('articles.html', articles = Articles)

@app.route('/article/<string:id>')
def article(id):
    return render_template('article.html', id = id)

class RegisterForm(Form):
    name = StringField('Name', [validators.Length(min=1, max=50)])
    username = StringField('Username', [validators.Length(min=4, max=25)])
    email = StringField('Email', [validators.Length(min=6, max=50)])
    password = PasswordField('New Password', [
            validators.DataRequired(),
            validators.EqualTo('confirm', message='Passwords must match')
        ])
    confirm = PasswordField('Repeat Password')

@app.route('/register', methods=['GET', 'POST'])
def register():
    form = RegisterForm(request.form)
    if request.method == 'POST' and form.validate():
        name = form.name.data
        email = form.email.data
        username = form.username.data
        password = sha256_crypt.encrypt(str(form.password.data))

        # Create cursor
        cur = mysql.connection.cursor()

        # Execute query
        cur.execute("INSERT INTO users(name, email, username, password) VALUES (%s, %s, %s, %s)", (name, email, username, password))

        # Commit to DB
        mysql.connection.commit()

        #  Close connection
        cur.close()

        flash('You are now registered and can log in', 'success')

        return redirect(url_for('login'))

    return render_template('register.html', form=form)

if __name__ == '__main__':
    app.secret_key = 'secret123'
    app.run(debug=True)

回溯(最近通话最近一次)

Traceback (most recent call last)

File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1997, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1985, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1540, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\_compat.py", line 33, in reraise
    raise value
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1982, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1614, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1517, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\_compat.py", line 33, in reraise
    raise value
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask\app.py", line 1598, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "C:\Users\Harsh\Desktop\Projects\py\myflaskapp\app.py", line 58, in register
    cur = mysql.connection.cursor()
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask_mysqldb\__init__.py", line 94, in connection
    ctx.mysql_db = self.connect
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\flask_mysqldb\__init__.py", line 81, in connect
    return MySQLdb.connect(**kwargs)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\MySQLdb\__init__.py", line 86, in Connect
    return Connection(*args, **kwargs)
  File "C:\Users\Harsh\AppData\Local\Programs\Python\Python36-32\lib\site-packages\MySQLdb\connections.py", line 204, in __init__
    super(Connection, self).__init__(*args, **kwargs2)
TypeError: an integer is required (got type str)

我不确定为什么会这样，请有人指导我.我在这里查看了其他解决方案，但它们对我而言并没有真正作用

I am not sure why this is happening, can anyone guide me on this please. I looked at the other solutions on here, but they didn't really work for me

推荐答案

在配置参数中PORT必须为整数您在这里以字符串形式传递

In config parameters PORT must be an Integer you are here passing it in string

#Config MySQL
app.config['MYSQL_PORT'] = '8889' ##pass 8889 instead of '8889'

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