When both methods are implemented, it's somewhat common to have a
__str__ method that returns a human-friendly representation (e.g. "Ace of Spaces") and
__repr__ return an
In fact, the Python docs for
repr() note exactly this:
For many types, this function makes an attempt to return a string that would yield an object with the same value when passed to eval(), otherwise the representation is a string enclosed in angle brackets that contains the name of the type of the object together with additional information often including the name and address of the object.
What that means is that
__str__ might be implemented to return something like "Ace of Spaces" as shown previously,
__repr__ might be implemented to instead return
This string could be passed directly back into
eval in somewhat of a "round-trip":
object -> string -> object
An example of an implementation of such a method might be:
def __repr__(self): return "Card(%s, %d)" % (self.suit, self.pips)
 This output is implementation specific. The string displayed is from cpython.
 You may have already seen the result of this
repr() divide and not known it. When strings containing special characters such as backslashes are converted to strings via
str() the backslashes appear as-is (they appear once). When they're converted to strings via
repr() (for example, as elements of a list being displayed), the backslashes are escaped and thus appear twice.