Python object.__repr__(self) should be an expression?

Question

I was looking at the builtin object methods in the Python documentation, and I was interested in the documentation for object.__repr__(self). Here\'s what it sa

Answer 1

'repr' means represention. First,we create an instance of class coordinate.

x = Coordinate(3, 4) 

Then if we input x into console,th output is

<__main__.Coordinate at 0x7fcd40ab27b8>

If you use repr():

>>> repr(x)
Coordinate(3, 4)

the output is as same as 'Coordinate(3, 4)',except it is a string.You can use it to recreate a instance of coordinate.

In conclusion,repr() meathod is print out a string,which is the representation of the obeject.