Merge "check_ota_package_signature.py: Set up PYTHONPATH."

import argparse

import common

import os

import os.path

import re

import site

import subprocess

import sys

import tempfile

from hashlib import sha256

# 'update_payload' package is under 'system/update_engine/scripts/', which

# should to be included in PYTHONPATH.

# should be included in PYTHONPATH. Try to set it up automatically if

# if ANDROID_BUILD_TOP is available.

top = os.getenv('ANDROID_BUILD_TOP')

if top:

  site.addsitedir(os.path.join(top, 'system', 'update_engine', 'scripts'))

from update_payload.payload import Payload

from update_payload.update_metadata_pb2 import Signatures