The documentation says:
"""The pprint module provides a capability to “pretty-print” arbitrary Python data structures in a form which can be used as input to the interpreter."""

But #since issue17150 long lines are splitted on shorter lines without continuation character and the result can't be used as input to the interpreter.

>>> pprint.pprint('abc '*20)
'abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc '\
'abc '