* Makefile.in (SUBDIR_PYTHON_OBS): Add py-progspace.o.
(SUBDIR_PYTHON_SRCS): Add py-progspace.c.
(py-progspace.o): New rule.
* python/py-prettyprint.c (find_pretty_printer_from_objfiles): New
function.
(find_pretty_printer_from_progspace): New function.
(find_pretty_printer_from_gdb): New function.
(find_pretty_printer): Rewrite.
* python/py-progspace.c: New file.
* python/python-internal.h (program_space): Add forward decl.
(pspace_to_pspace_object, pspy_get_printers): Declare.
(gdbpy_initialize_pspace): Declare.
* python/python.c: #include "progspace.h".
(gdbpy_get_current_progspace, gdbpy_progspaces): New functions.
(_initialize_python): Call gdbpy_initialize_pspace.
(GdbMethods): Add current_progspace, progspaces.
doc/
* gdb.texinfo (Python API): Add progspaces section.
(Selecting Pretty-Printers): Progspace pretty-printers are
searched too.
(Progspaces In Python): New section.
testsuite/
* gdb.python/py-progspace.c: New file.
* gdb.python/py-progspace.exp: New file.