cf
Field.
valid_min
The valid_min CF property.
>>> f.valid_min = 8.0 >>> f.valid_min 8.0 >>> del f.valid_min
>>> f.setprop('valid_min', 8.0) >>> f.getprop('valid_min') 8.0 >>> f.delprop('valid_min')
cf.Field.valid_max
cf.Field.valid_range