Who should see Python deprecation warnings?

That way, I forsee myself being belaid by hundreds of thousands of deprecation warnings for code I import, rather than just for my own code. The same problem makes it difficult to build my own C++ code with -Wall -Werror; I have always assumed that the Boost developers are clever enough to avoid the problems that the compiler hints at when -Wstrict-aliasing is turned on, but I would still like those warnings to fail the build when found in my own code...