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# test builtin callable
# primitives should not be callable
print(callable(None))
print(callable(1))
print(callable([]))
print(callable("dfsd"))
# modules should not be callabe
import sys
print(callable(sys))
# builtins should be callable
print(callable(callable))
# lambdas should be callable
print(callable(lambda:None))
# user defined functions should be callable
def f():
pass
print(callable(f))
# types should be callable, but not instances
class A:
pass
print(callable(A))
print(callable(A()))
# instances with __call__ method should be callable
class B:
def __call__(self):
pass
print(callable(B()))
# this checks internal use of callable when extracting members from an instance
class C:
def f(self):
return "A.f"
class D:
g = C() # g is a value and is not callable
print(callable(D().g))
print(D().g.f())
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