Pfthb

The aim of this program is just to return the values that are passed from a .cfg configuration file called 'defaults.cfg'.

I totally understand what should be getting passed here and to be honest the code for all intents and purposes is copied from an exercise, but it fails with a 'Keying error: (value)' (all values give the keying error, it's just whatever is first) and I don't know why. I've been unable to find a solution online and the code is the same in principle as a friend's more complicated program running a proper web application and his works just fine.

Apparently using capitals for the config keys is a thing and I've done that and I'm sure I have all the necessary libraries/binaries installed.

I'm doing this on Bash on Windows on Ubuntu.

Thanks in advance for any consideration.

default.cfg

[config]
DEBUG = True
IP_ADDRESS = 0.0.0.0
PORT = 5000

configuration.py

import ConfigParser

from flask import Flask

app = Flask(__name__)

@app.route('/')
def root():
 return "Sup! Hollerin' at ya from the configuration testing app"

@app.route('/WTF/')
def tellMeh():
 return app.config['PORT']

@app.route('/config/')
def config():
 str = 
 str.append(app.config['DEBUG'])
 str.append('port:'+app.config['PORT'])
 str.append('ip_address:'+app.config['IP'])
 return 't'.join(str)

def init(app):
 config = ConfigParser.ConfigParser()
 try:
 config_location = "etc/defaults.cfg"
 config.read(config_location)

 app.config['DEBUG'] = config.get("config", "DEBUG")
 app.config['IP'] = config.get("config", "IP_ADDRESS")
 app.config['PORT'] = config.get("config", "PORT")

 print "Succesfully read configs from: ", config_location
 except:
 print "Couldn't read configs from: ", config_location

if __name__ == '__main__':
 init(app)
 app.run(
 host=app.config['IP'],
 port=int(app.config['PORT']))

You'll get different behavior from that code depending on how you invoke it.

FLASK_APP=configuration.py flask run will skip the section at the bottom where init(app) is called

python configuration.py will run that section, calling init(app).

You might wish to move the call to init() to right below app = Flask(...).