Issue with mutliple config subclasses being called

__init__.py

# Module that initialises and runs the app


from flask import Flask


# factory function to create application instance
def create_app(config_key):
	# create Flask app instance
	app = Flask(__name__)

	# get config settings based on config_key (subclass of 
	# Config class, e.g TestingConfig;
	# ProductionConfig, ...) in config dict of config.py file
	from config import config			# I NOTICE THE PROBLEM OCCURS ON THIS LINE
	app.config.from_object(config[config_key])

	# Call init_app method
	config[config_key].init_app(app, [bootstrap, db])
	
	# ...
	
	return app

config.py

# imports
import os

#### App config
BASE_URI = os.path.abspath(os.path.dirname(__file__))




# LOGO
#LOGO_PATH = 'image/afraisr_logo.png'

# allowed image format types



# Config class
class Config:
	DEBUG = False
	TESTING = False
	# ...
	
	## app data files/folders
	APP_DATA_BASE_URI = '/var/lib/krohx_app_data/sancta_crux_data/'
	
	# Image folders
	PROFILE_IMG_UPLOADS_FOLDER = APP_DATA_BASE_URI + 'image/profile_img/'
	GALLERY_IMG_UPLOADS_FOLDER = APP_DATA_BASE_URI + 'image/gallery/'
	EVENT_IMG_UPLOADS_FOLDER = APP_DATA_BASE_URI + 'image/events/'

	# Default images
	DEFAULT_SILHOUETTE_MALE = 'default/silhouette_male.png'
	DEFAULT_SILHOUETTE_FEMALE = 'default/silhouette_female.png'
	DEFAULT_SILHOUETTE_UNKNOWN = 'default/silhouette_unknown.png'

	
	# ...
	@staticmethod
	def init_app(app, list_of_extensions):
		for ext in list_of_extensions:
			ext.init_app(app)		



# Specific Config classes
class DevelopmentConfig(Config):
	# DEBUG PRINTS
	print "\n\n\n"
	print "APP CREATED AS DEV"
	print "\n\n\n"
	
	DEBUG = True
	DB_URI = os.path.join(BASE_URI, 'sancta_crux_app_data_dev.sqlite')
	SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DB_URI

class TestingConfig(Config):
	# DEBUG PRINTS
	print "\n\n\n"
	print "APP CREATED AS TEST"
	print "\n\n\n"
	
	TESTING = True
	DB_URI = os.path.join(BASE_URI, 'sancta_crux_app_data_test.sqlite')
	SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DB_URI

class ProductionConfig(Config):
	print "\n\n\n"
	print "APP CREATED AS PROD"
	print "\n\n\n"
	
	APP_DATA_BASE_URI = '~/krohx_app_data_production/sancta_crux_data/'
	DB_URI = os.path.join(BASE_URI, 'sancta_crux_app_data.sqlite')
	SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DB_URI
	



config = { 'development' : DevelopmentConfig,
	'testing' : TestingConfig,
	'production' : ProductionConfig,
	
	'default' : DevelopmentConfig }

run.py

# This file runs the program


#!/usr/bin/env python
import os
from sancta_crux_app import create_app, db

from flask.ext.script import Manager

app = create_app(os.getenv('FLASK_CONFIG_KEY') or 'default')	# FLASK_CONFIG_KEY: E.g. ProductionConfig, DevelopmentConfig
app_manager = Manager(app)		# enable command-line interaction (cmd arg parsing) using extension; run prog with this object instead

# run program
if __name__ == '__main__':
	app_manager.run()

Traceback

# Traceback prints this:

APP CREATED AS DEV


APP CREATED AS TEST


APP CREATED AS PROD



############################################

#Instead of:

APP CREATED AS DEV