Add a debug target to the Makefile
Add a debug target to the Makefile

Useful for those times you want to step into a pdb session

dstufft/warehouse,alex/warehouse,alex/warehouse,dstufft/warehouse,karan/warehouse,karan/warehouse,karan/warehouse,alex/warehouse,alex/warehouse,karan/warehouse,pypa/warehouse,wlonk/warehouse,karan/warehouse,pypa/warehouse,dstufft/warehouse,wlonk/warehouse,wlonk/warehouse,pypa/warehouse,dstufft/warehouse,alex/warehouse,pypa/warehouse