import contextlib
import logging
import os
import tempfile

@contextlib.contextmanager
def _tempfile(content, suffix=''):
    fd, raw_path = tempfile.mkstemp(suffix=suffix)
    try:
        os.write(fd, content)
        os.close(fd)
        yield raw_path
    finally:
        # never called?
        os.remove(raw_path)

def path(package, resource):
    return _tempfile(b'content', suffix='cacert.pem')

_CACERT_CTX = None
_CACERT_PATH = None

def where():
    global _CACERT_CTX
    global _CACERT_PATH
    if _CACERT_PATH is None:
        _CACERT_CTX = path("pip.certifi", "cacert.pem")
        _CACERT_PATH = str(_CACERT_CTX.__enter__())
    return _CACERT_PATH

DEFAULT_CA_BUNDLE_PATH = where()

class VerboseLogger(logging.Logger):
    def verbose(self, msg, *args, **kwargs):
        pass

def init_logging():
    logging.setLoggerClass(VerboseLogger)

init_logging()

print("bug.py: temporary directory:", os.listdir('TMP'))