Method _format

Lib/pprint.py:177–206

(self, object, stream, indent, allowance, context, level)

        return readable and not recursive

    def _format(self, object, stream, indent, allowance, context, level):
        objid = id(object)
        if objid in context:
            stream.write(_recursion(object))
            self._recursive = True
            self._readable = False
            return
        rep = self._repr(object, context, level)
        max_width = self._width - indent - allowance
        if len(rep) > max_width:
            p = self._dispatch.get(type(object).__repr__, None)
            # Lazy import to improve module import time
            from dataclasses import is_dataclass

            if p is not None:
                context[objid] = 1
                p(self, object, stream, indent, allowance, context, level + 1)
                del context[objid]
                return
            elif (is_dataclass(object) and
                  not isinstance(object, type) and
                  object.__dataclass_params__.repr and
                  # Check dataclass has generated repr method.
                  hasattr(object.__repr__, "__wrapped__") and
                  "__create_fn__" in object.__repr__.__wrapped__.__qualname__):
                context[objid] = 1
                self._pprint_dataclass(object, stream, indent, allowance, context, level + 1)
                del context[objid]
                return
        stream.write(rep)

    def _pprint_dataclass(self, object, stream, indent, allowance, context, level):
        # Lazy import to improve module import time