BUG: TypeError: int() argument must be a string or a number, not 'NoneType'

[atarkowska]

In url

(?i)^webgateway/ ^plate/(?P<pid>[^/]+)/(?:(?P<field>[^/]+)/)?$

Field is optional and this code raise error when field is None even arg field=0

try:
    field = int(field)
except ValueError:
    field = 0

TypeError: int() argument must be a string or a number, not 'NoneType'

or we need to catch TypeError? or

int(value or 0) # 0 if Python considers False

or

int(0 if value is None else value) # is testing for None only

[atarkowska]

(In [a2647333b74a176b45938c3447af65a00968307e/ome.git] on branch develop) this improve SPW support including new Plate viewport. Close #6477 and #5910 and #6483 and #6492 and remaining #3078:1h