>>> class Test: ... def __repr__(self): ... return "Test()" ... def __str__(self): ... return "member of Test" ... >>> t = Test() >>> t Test() >>> print(t) member of Test
__str__ method is what gets called happens when you print it, and the
__repr__ method is what happens when you use the
repr() function (or when you look at it with the interactive prompt).
__str__ method is given, Python will print the result of
__repr__ instead. If you define
__str__ but not
__repr__, Python will use what you see above as the
__repr__, but still use
__str__ for printing.