new to python. Following a couple tutorials to serve an application (ddworkflow.com) using Python 3.6.7, Flask, Gunicorn, NGINX, and MySQL on Ubuntu 18.04
The tutorials are:
and
I got through the first tutorial and am able to successfully serve the basic web pages from the second tutorial.
Installing everything in a virtual environment and just installed flask-mysql using pip install flask-mysql.
My pip freeze shows:
Click==7.0
Flask==1.0.2
Flask-MySQL==1.4.0
itsdangerous==1.1.0
Jinja2==2.10
MarkupSafe==1.1.0
PyMySQL==0.9.3
Werkzeug==0.14.1
After installing Flask-MySQL I tested the installation by trying the following different variations of the "from" command (at the python prompt):
from flask.ext.mysql import MySQLfrom flaskext.mysql import MySQLfrom flask_mysql import MySQLfrom flaskext.mysql import MySQL
1, 2, and 3 all produce ModuleNotFoundError... The only one that does not throw an error is from flaskext.mysql import MySQL
However, when I add from flaskext.mysql import MySQL to my flask app file (app01.py) I immediately get a 502 bad gateway error. My app01.py file is
from flask import Flask, render_template, json, request
#from flaskext.mysql import MySQL #<--comment out or get 502 error
hello = Flask(__name__)
@hello.route("/")
def greeting():
return render_template('index.html')
@hello.route('/showSignUp')
def showSignUp():
return render_template('signup.html')
@hello.route('/signUp',methods=['POST'])
def signUp():
# read the posted values from the UI
_name = request.form['inputName']
_email = request.form['inputEmail']
_password = request.form['inputPassword']
# validate the received values
if _name and _email and _password:
return json.dumps({'html':'<span>All fields good !!</span>'})
else:
return json.dumps({'html':'<span>Enter the required fields</span>'})
if __name__ == "__main__":
hello.run(host='0.0.0.0')
Any help getting the 502 error to go away so that I connect to the database is much appreciated. Thank you.
