[英]Issues with Flask-MySQLdb using Python3.7
我的Flask Web服務器出現問題。 從flask_mysqldb添加后,我收到一條錯誤消息,將MySQL和SQL腳本導入源文件。 我收到此消息:
$ python app.py Traceback(最近一次調用):文件“ app.py”,第3行,從flask_mysqldb導入MySQL文件“ /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site -packages / flask_mysqldb / init .py“,第1行,在導入MySQLdb文件“ /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/ init .py”,第18行,在import _mysql ImportError中:dlopen(/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/_mysql.cpython-37m-darwin.so,2):未加載庫:@rpath /libmysqlclient.21.dylib引用自:/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/_mysql.cpython-37m-darwin.so原因:找不到圖像**
我想知道是否與我使用python 3.7有關。 燒瓶mysqldb doc表示它支持Python 2.7、3.4和3.5。 我應該使用舊版本的python嗎? 您的投入非常多!
這是源代碼:
from flask import Flask, render_template, flash, redirect, url_for, session, request, 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__)
app.config['MYSQL_HOST'] = 'localhost'
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = '123456'
app.config['MYSQL_DB'] = 'myflaskapp'
app.config['MYSQL_CURSORCLASS'] = 'DictCursor'
mysql = MySQL(app)
Articles = Articles()
@app.route("/")
@app.route("/home")
def home():
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('Password', [
validators.DataRequired(),
validators.EqualTo('Confirm', message='Passwords do not match')
])
confirm = PasswordField('Confirm 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 now log in', 'success')
redirect(url_for('index'))
return render_template('register.html', form=form)
if __name__ == '__main__':
app.run(debug=True)
我一直在遵循與您相同的編程教程,並且使用Python 3.7可以正常工作。 唯一的區別是我正在使用Linux,而您正在使用MacOS。 這里的問題不是Python 3.7。 相反,此代碼段指示了該問題:
庫未加載:@ rpath / libmysqlclient.21.dylib引用自:/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/_mysql.cpython-37m-darwin.so原因:圖像未找到**
問題是MySQL包找不到另一個線程中討論的動態庫_mysql.cpython-37m-darwin.so
。
動態庫應該在/usr/local/mysql/lib
目錄中可用。 如果在該目錄中,則只需使用以下命令修改$DYLD_LIBRARY_PATH
變量: export DYLD_LIBRARY_PATH=/usr/local/mysql/lib/:$DYLD_LIBRARY_PATH
。
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