CODEWITHSUNDEEP
pythonpython-3.xflaskdeploymentpythonanywhere
Ivan
Ivan

Reputation: 45

How to deploy a Flask application on pythonanywhere with a folder as a module

Currently I am trying to a deploy my first FLASK application on PythonAnywhere.

Im not sure if this is the correct terminology but I have a folder as a module and there for I can't seem to find the correct way to deploy my application. I am not even sure where to start in resolving this issue. Any advice?

File and Folder Layout Snipped

my init.py code is: 

import os

from flask import Flask


def create_app(test_config=None):
    # create and configure the app
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY='secret',
        DATABASE=os.path.join(app.instance_path, 'LAMA.sqlite'),
    )

    if test_config is None:
        # load the instance config, if it exists, when not testing
        app.config.from_pyfile('config.py', silent=True)
    else:
        # load the test config if passed in
        app.config.from_mapping(test_config)

    # ensure the instance folder exists
    try:
        os.makedirs(app.instance_path)
    except OSError:
        pass

    # database
    from . import db
    db.init_app(app)

    # authentication blueprint
    from . import auth
    app.register_blueprint(auth.bp)


    # blog blueprint - the main index
    # from . import blog
    # app.register_blueprint(blog.bp)
    # app.add_url_rule('/', endpoint='index')

    # book blueprint 
    from . import book
    app.register_blueprint(book.bp)
    app.add_url_rule('/', endpoint='index')

    return app

I have also followed the python debugging page where I have done the following:

>>> import LAMA
>>> print(LAMA)
<module 'LAMA' from '/home/ivanv257/LAMA_MAIN/LAMA/__init__.py'>

So at this stage in my WSGI configuration file I have:

import sys

path = '/home/ivanv257/LAMA_MAIN/LAMA/__init__.py'
if path not in sys.path:
    sys.path.append(path)

from LAMA import app as application

I have also tried many other combinations such as 

path = '/home/ivanv257/LAMA_MAIN/LAMA/'
from init import app as application

path = '/home/ivanv257/LAMA_MAIN/'
from init import app as application

path = '/home/ivanv257/LAMA_MAIN/'
from LAMA import app as application

my source code path is : /home/ivanv257/LAMA_MAIN/LAMA , although I have also tried different combinations such as /home/ivanv257/LAMA_MAIN/

ERROR DETAIL: 

2018-12-08 10:05:32,028: Error running WSGI application
2018-12-08 10:05:32,030: ModuleNotFoundError: No module named 'LAMA'
2018-12-08 10:05:32,030:   File "/var/www/ivanv257_pythonanywhere_com_wsgi.py", line 83, in <module>
2018-12-08 10:05:32,030:     from LAMA import app as application  # noqa

Upvotes: 2

Views: 1362

Answers (2)

Ivan
Ivan

Reputation: 45

To solve my problem I changed the following (with some assistance) from lama import create_app: 

import sys

path = '/home/ivanv257/LAMA_MAIN/LAMA'
if path not in sys.path:
    sys.path.append(path)

from lama import create_app

application = create_app()

I also had to remove the from . to just imports

    import db
    db.init_app(app)

    # authentication blueprint
    import auth
    app.register_blueprint(auth.bp)

Upvotes: 1

Ajax1234
Ajax1234

Reputation: 71471

You are close. To deploy your app, navigate to the webapps page on your user dashboard. If you have not done so already, click the "Add new a webapp" button and enter the desired name of the app. Then, on the same webapp page on the dashboard, scroll down to the "Code" section of the page. Click on the "source code" a href and add the absolute path (full path) to the lama_main directory storing your init.py file.

Next, click on "WSGI configuration file" link. In the WSGI configuration file for your app, set the correct path to the parent directory and import app from the init.py file:

import sys

# add your project directory to the sys.path
project_home = u'/home/your_user_name/lama_main'
if project_home not in sys.path:
  sys.path = [project_home] + sys.path

# import flask app but need to call it "application" for WSGI to work

from init import app as application #note that the module being imported from must be the file with "app" defined.

Then, save the WSGI file and return to the webapp panel on your dashboard. Click the "Reload {your site name}" button. Now, you should be able to visit the site by clicking on the main link at the top of the page.

Upvotes: 0

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