Solution 1
@app.route('/home/reach_truck')
def machines(machine_name):
rb = np.array(machines_file.loc[machines_file['Machine'].str.contains(machine_name), 'Resolved By'])
rb_o = np.count_nonzero(rb == 'Outsource')
rb_ih = np.count_nonzero(rb == 'In-House')
return render_template('reachtruck.html',outsource=rb_o, inhouse=rb_ih)
machines('Reach Truck')
app.route('/home/reach_truck')(machines)('Reach Truck')
Solution 2
app.route('/home/reach_truck')(machines)('Reach Truck')