Determine if Python variable is an instance of a built-in type

Question

I need to determine if a given Python variable is an instance of native type: str, int, float, bool, list, <

Answer 1

You appear to be interested in assuring the simplejson will handle your types. This is done trivially by

try:
    json.dumps( object )
except TypeError:
    print "Can't convert", object

Which is more reliable than trying to guess which types your JSON implementation handles.