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return redirect(url_for('index', var=var)) return render_template('index.html', var=var) Are these two lines essentially the same thing?
What is the difference between the two functions?
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render_template is a Flask function from the flask. templating package. render_template is used to generate output from a template file based on the Jinja2 engine that is found in the application's templates folder. Note that render_template is typically imported directly from the flask package instead of from flask.
The render function Combines a given template with a given context dictionary and returns an HttpResponse object with that rendered text. You request a page and the render function returns it. The redirect function sends another request to the given url.
redirect returns a 302 header to the browser, with its Location header as the URL for the index function. render_template returns a 200, with the index.html template returned as the content at that URL.
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On a much simpler note, consider this - If none of your endpoints rendered templates, and all your redirects were to url's of endpoints within your app, there would be nothing to render!
It's like pointing the way to a place that won't show itself.
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