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# Uploading Your Application

You create and manage applications in App Engine using the Administration Console. Once you have registered an application ID for your application, you upload it to your website using `appcfg.py`, a command-line tool provided in the SDK.

Note: Once you register an application ID, you can delete it, but you can't re-register that same application ID after it has been deleted. Skip these next steps if you don't want to register an ID at this time.

## Registering the Application

You create and manage App Engine web applications from the App Engine Administration Console at this URL:

https://appengine.google.com/

Sign in to App Engine using your Google account. If you do not have a Google account, you can create a Google account with an email address and password.

To create a new application, click the "Create an Application" button. Follow the instructions to register an application ID, a name unique to this application. If you elect to use the free appspot.com domain name, the full URL for the application will be `http://your_app_id.appspot.com/`. You may also purchase a top-level domain name for your app, or use one that you have already registered.

Edit the `app.yaml` file, then change the value of the `application:` setting from `helloworld` to your registered application ID.

## Uploading the Application

To upload your finished application to Google App Engine, run the command:

    appcfg.py update myapp/

Enter your Google username and password at the prompts.

If all goes well, your application is now deployed on App Engine. If you see compilation errors, fix the source and rerun `appcfg.py`; it won't launch (or update) your app until compilation is successful.

`http://your_app_id.appspot.com`

## Congratulations!

You have completed this tutorial. For more information on the subjects covered here, see the rest of the App Engine documentation.