How do I find out if the variable x is a function or just a general variable?
When x is pointing to a function,
type(x) = <type 'function'> I want to win
isinstance(x, function)
I wrote it like this, but there's an error. What should I do?
Traceback (most recent call last): File "", line 1, in ? NameError: name 'function' is not defined The reason I picked that is because
function python detect
Type buitin without constructor is located in the types module.
Therefore, you must import the types module and pass types.FunctionType as a parameter for isinstance.
import types
def myfunction():
pass
myFunc = myfunction
print isinstance(myFunc, types.FunctionType) #True
If you don't want to import modules separately, use the following method
All functions have the attribute __call___ because they can "call".
Therefore, by determining if the object has the attribute __call___ as follows:
You can distinguish functions.
def myfunction():
pass
myFunc = myfunction
print hasattr(myFunc, "__call__") #It's a function, so it's true
myVal = 3
print hasattr(myVal, "__call__") #False because it is an int-type object
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