MemoryView missing from Python 2.4 and 2.6

[jose.marchesi@oracle.com (Jose E. Marchesi)]

Hi folks!

While building git GDB on a certain distribution that features Python
2.6.6 (I know, ancient) we triggered a build failure:

g++  -g -O2   -I. -I../../gdb -I../../gdb/common -I../../gdb/config -DLOCALEDIR="\"/usr/local/share/locale\"" -DHAVE_CONFIG_H -I../../gdb/../include/opcode -I../../gdb/../opcodes/.. -I../../gdb/../readline/.. -I../../gdb/../zlib -I../bfd -I../../gdb/../bfd -I../../gdb/../include -I../libdecnumber -I../../gdb/../libdecnumber  -I../../gdb/gnulib/import -Ibuild-gnulib/import   -DTUI=1  -I/usr/include/python2.6 -I/usr/include/python2.6 -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-write-strings -Wno-narrowing -Wformat-nonliteral -Werror -c -o py-record-btrace.o -MT py-record-btrace.o -MMD -MP -MF .deps/py-record-btrace.Tpo -fno-strict-aliasing -DNDEBUG -fwrapv ../../gdb/python/py-record-btrace.c
../../gdb/python/py-record-btrace.c: In function ‘PyObject* btpy_insn_data(PyObject*, void*)’:
../../gdb/python/py-record-btrace.c:333:10: error: ‘PyMemoryView_FromObject’ was not declared in this scope
   return PyMemoryView_FromObject (object);
          ^~~~~~~~~~~~~~~~~~~~~~~
../../gdb/python/py-record-btrace.c:333:10: note: suggested alternative: ‘PyBuffer_FromObject’
   return PyMemoryView_FromObject (object);
          ^~~~~~~~~~~~~~~~~~~~~~~
          PyBuffer_FromObject
make: *** [py-record-btrace.o] Error 1

Looks like the Memory View object was introduced in Python 2.7.
Salud!