Recon

Checking Builtins
import builtins
print(dir(builtins))
Checking Keywords
import keyword
print(keyword.kwlist)
Checking Global Variables
print(globals())
Checking Local Variables
print(locals())
Checking Internal Attributes
# for subclasses. (require you have an object)
print(object.__subclasses__())
 
# for __globals__ (require you have a function)
def some_function():
    pass
print(some_function.__globals__)
 
# for __self__ (requires you have a class)
class SomeClass:
    def some_method(self):
        pass
obj = SomeClass()
print(obj.some_method.__self__)
 
# for __builtins__
print(__builtins__)
# for __spec__
import sys
print(sys.__spec__)