MySQL连接错误Python、Flask、MySQL

每当我测试我的网站时，它会随机崩溃，并出现以下错误：

mysql_exceptions.OperationalError: (2006, "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)")

唯一的解决办法是重新启动程序

代码摘录：

#####################################################
#Initialize database
db = MySQLdb.connect(host="<Name removed>.mysql.pythonanywhere-services.com", user="<Name removed>", passwd="<Password removed>", connect_timeout=3600, db="<Name removed>$main")
cur = db.cursor()

@app.route('/form', methods = ['GET', 'POST'])
def form():

 if request.method == 'POST':
    #Import data from the form
    name = request.form['name']
    first_name = request.form['first_name']
    last_name = request.form['last_name']
    email = request.form['email']
    password = request.form['password']
    country = request.form['country']
    account_type = 'admin'

    #Encrypt the password
    password = sha256_crypt.encrypt(password)

    #Generate the country code based off of the input
    loop = cur.execute("SELECT * FROM table;")
    cur.execute("SELECT code, list FROM table;")
    row = cur.fetchone()

回溯：

2018-12-10 14:07:24,036: Exception on /form [POST] 
Traceback (most recent call last):
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/<Link removed for posting>/mysite/app.py", line 235, in form
    loop = cur.execute("SELECT * FROM table;")
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 255, in execute
    self.errorhandler(self, exc, value)
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 50, in defaulterrorhandler
    raise errorvalue
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 252, in execute
    res = self._query(query)
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 378, in _query
    db.query(q)
  File "/home/<Link removed for posting>/.virtualenvs/my-virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 280, in query
    _mysql.connection.query(self, query)
_mysql_exceptions.OperationalError: (2006, 'MySQL server has gone away')

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错误发生在重新加载网站的前5分钟内，有时在重新加载时会立即发生。正在寻找允许MySQL永不超时的解决方案或允许此错误永不发生的解决方案。

数据库服务器上空闲时间超过连接超时设置的连接将被关闭；下次尝试使用关闭的连接时，您将收到该错误消息。Pythonywhere上的超时为300秒

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这里有一些关于如何管理MySQL连接的提示和技巧，这样就不会造成问题，所以这可能是寻找解决方案的好地方。

Edit:这是网页上显示的错误：内部服务器错误服务器遇到内部错误，无法完成您的请求。服务器过载或应用程序中存在错误。也会发生此错误：_mysql_exceptions.OperationalError:2006，“mysql服务器已消失”您应该提供代码和回溯详细信息。否则，就不可能知道发生这种情况的原因