import os
import subprocess
import sys


def call(*args, cwd=None):
    python_location = os.environ.get("PIPAPI_PYTHON_LOCATION", sys.executable)
    env = {
        **os.environ,
        "PIP_YES": "true",
        "PIP_DISABLE_PIP_VERSION_CHECK": "true",
        # See https://github.com/di/pip-api/issues/239
        "PYTHONIOENCODING": "utf8",
    }
    result = subprocess.check_output(
        [python_location, "-m", "pip"] + list(args), cwd=cwd, env=env
    )
    return result.decode()