Notes on trying to delete certain modules.

Also save a useful function

I don't think there's any more low hanging fruit.  _sre.c and
unicodeobject.c were a bunch of work.  bytearrayobject.c was easy but it
broke OHeap.

build/compile.sh

@@ -9,6 +9,17 @@ set -o errexit

source build/common.sh

# NOTES on trying to delete certain modules:
#
# _warnings.c: There weren't that many; it probably could be deleted.
# bufferobject.c: the types.py module uses it.
# Python-ast.h: pythonrun.c uses it in several places (mod_ty), and a lot of
# stuff uses pythonrun.c.
# pythonrun.c: lots interpreter flags and interpreter initialization caused
# link errors.

# dtoa.c: not tried, but I assume that %.3f for 'time' uses it.

readonly OVM_PYTHON_OBJS='
Python/_warnings.c
Python/bltinmodule.c

scripts/ovm.sh

@@ -22,4 +22,15 @@ pp-vars() {
  gcc -E -dM - < $PY27/pyconfig.h
}

# Modify this function to trace imports.  It helped with 're'.
# Where do codecs.c and codecs.py get imported?
# codecs.py is from encodings, but I don't nkow where that gets imported.
#
# I think runpy use encodings.
blame-import() {
  PYTHONVERBOSE=9 \
  _OVM_RESOURCE_ROOT=. PYTHONPATH=. \
    python -S -c 'from bin import oil; import sys; print sys.modules["codecs"]'
}

"$@"