isprime fix

mathgenerator/funcs/__init__.py

@@ -94,4 +94,4 @@ from .degree_to_rad import *
 from .radian_to_deg import *
 from .differentiation import *
 from .definite_integral import *
-from .isprime import *
+from .is_prime import *

mathgenerator/funcs/is_prime.py

@@ -16,3 +16,7 @@ def isprime(max_a=100):
             return (problem, solution)
     solution = True
     return (problem, solution)
+
+
+is_prime = Generator('isprime', 90, 'a any positive integer',
+                     'True/False', isprime)