This reverts commit 6693f359b3c213513c5096a06c6f67244a44dc52..
678f851312.
Python3 migration is the fundamental change. It requires every developer
to install Python3. Before this migration, the well communication and wide
verification must be done. But now, most people is not aware of this change,
and not try it. So, Python3 migration is reverted and be moved to edk2-staging
Python3 branch for the edk2 user evaluation.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Utilities written in Python may depend on external (preinstalled) Python
packages; for example, Ecc depends on "antlr_python_runtime-3.0.1". Such
packages need not be installed system-wide, as long as they are reachable
through PYTHONPATH. Therefore we shouldn't overwrite the user's PYTHONPATH
with "BaseTools/Source/Python"; instead, we should prepend the latter to
the former.
Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=896
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>