How to pass a variable between Flask pages?

Question

Suppose I have following case;

@app.route(\'/a\', methods=[\'GET\'])
def a():
  a = numpy.ones([10,10])
  ...
  return render_template(...) # this rendered p         


        

Answer 1

The link to route /b in the template for /a could have query parameters added to it, which you could read in the route for /b. Alternatively you could store the value for a in a session variable to access it between views.