The ornamental design for a container for clotheswashingmachine, as shown and described.
FIG. 1 is a perspective view of a container for a clothes washing machine; and,
FIG. 2 is a side view of the container from FIG. 1.
The broken lines in the drawings depict the boundary of the claim. It is understood that the claim extends to the boundary, but that the boundary forms no part of the claimed design. Only one side view is shown since the container is cylindrical and the textured pattern will appear the same in other side views.