"ioerror: [errno 30] Read-only File System" Error In Google App Engine

I have a function in Flask that does some web scraping and puts the content in a HTML file. @app.route('/something') def something(): web_scraping() return render_template(

Solution 1:

You cannot write to the file system

Why can't I write to this file?

Writing to local files is not supported in App Engine due to the distributed nature of your application. Instead, data which must be persisted should be stored in the distributed datastore. For more information see the documentation on the runtime sandbox

However, you still can writing files:

In App Engine, the local filesystem that your application is deployed to is not writeable. This behavior ensures the security and scalability of your application.

However, if the application needs to write and read files at runtime, App Engine provides a built-in Google Cloud Storage stream wrapper that allows you to use many of the standard PHP filesystem functions to read and write files in an App Engine PHP app.