The ornamental design for a container for a clothes washing machine, as shown and described.
FIG. 1 is a perspective view of a container for a clothes washing machine having a textured pattern; and,
FIG. 2 is a side view of the container from FIG. 1.
The broken-line square surrounding the shaded area represents the boundary of the claim. The other broken lines represent portions of the container that are not part of the claimed design.