When a user writes a Kernel with a variable that has the same name as a FieldSet contestant, that throws an unclear error. E.g.
fieldset.add_constant('vertical_speed', 0.1)
def ArgoVerticalMovement(particle, fieldset, time):
vertical_speed = fieldset.vertical_speed
Throws an output like
/var/folders/1n/500ln6w97859_nqq86vwpl000000gr/T/parcels-504/982d2e61fa4f6033c50aae39bf44d63b_0.c:73:18: warning: explicitly assigning value of variable of type 'float' to itself [-Wself-assign]
vertical_speed = vertical_speed;
~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
This could be caught in the codeconverter.py with a more elegant and understandable error