circuitpython/tests/basics/class_bind_self.py at urandom · python-ugame/circuitpython

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# test for correct binding of self when accessing attr of an instance

class A:

def __init__(self, arg):

self.val = arg

def __str__(self):

return 'A.__str__ ' + str(self.val)

def __call__(self, arg):

return 'A.__call__', arg

def foo(self, arg):

return 'A.foo', self.val, arg

def make_closure(x_in):

x = x_in

def closure(y):

return x, y is c

return closure

class C:

# these act like methods and bind self

def f1(self, arg):

return 'C.f1', self is c, arg

f2 = lambda self, arg: ('C.f2', self is c, arg)

f3 = make_closure('f3') # closure

def f4(self, arg): # generator

yield self is c, arg

# these act like simple variables and don't bind self

f5 = int # builtin type

f6 = abs # builtin function

f7 = A # user type

f8 = A(8) # user instance which is callable

f9 = A(9).foo # user bound method

c = C()

print(c.f1(1))

print(c.f2(2))

print(c.f3())

print(next(c.f4(4)))

print(c.f5(5))

#print(c.f6(-6)) not working in uPy

print(c.f7(7))

print(c.f8(8))

print(c.f9(9))

# not working in uPy

#class C(list):

# # this acts like a method and binds self

# f1 = list.extend

#c = C()

#c.f1([3, 1, 2])

#print(c)

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