diff options
| -rw-r--r-- | setuptools/ssl_support.py | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/setuptools/ssl_support.py b/setuptools/ssl_support.py index 661b6b52..2313651f 100644 --- a/setuptools/ssl_support.py +++ b/setuptools/ssl_support.py @@ -3,7 +3,7 @@ import socket import atexit import re -from setuptools.extern.six.moves import urllib, http_client, map +from setuptools.extern.six.moves import urllib, http_client, map, filter import pkg_resources from pkg_resources import ResolutionError, ExtractionError @@ -237,21 +237,16 @@ def get_win_certfile(): def find_ca_bundle(): """Return an existing CA bundle path, or None""" - ca_bundle_path = None + extant_cert_paths = filter(os.path.isfile, cert_paths) + return ( + get_win_certfile() + or next(extant_cert_paths, None) + or _certifi_where() + ) - if os.name == 'nt': - ca_bundle_path = get_win_certfile() - else: - for cert_path in cert_paths: - if os.path.isfile(cert_path): - ca_bundle_path = cert_path - break - if ca_bundle_path is None: - try: - import certifi - ca_bundle_path = certifi.where() - except (ImportError, ResolutionError, ExtractionError): - pass - - return ca_bundle_path +def _certifi_where(): + try: + return __import__('certifi').where() + except (ImportError, ResolutionError, ExtractionError): + pass |