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assert isinstance(dir(), list)
assert '__builtins__' in dir()
class A:
def test():
pass
a = A()
assert "test" in dir(a), "test not in a"
assert "test" in dir(A), "test not in A"
a.x = 3
assert "x" in dir(a), "x not in a"
class B(A):
def __dir__(self):
return ('q', 'h')
# Gets sorted and turned into a list
assert ['h', 'q'] == dir(B())
# This calls type.__dir__ so isn't changed (but inheritance works)!
assert 'test' in dir(A)
# eval() takes any mapping-like type, so dir() must support them
# TODO: eval() should take any mapping as locals, not just dict-derived types
class A(dict):
def __getitem__(self, x):
return dir
def keys(self):
yield 6
yield 5
assert eval("dir()", {}, A()) == [5, 6]
import socket
assert "AF_INET" in dir(socket)