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See suggestion in https://github.com/bskinn/sphobjinv/issues/275
This prevents the module from creating an ssl context upon import, when,
during a build especially, a certificate file may not be present. Otherwise
module import would fail.
--- a/src/sphobjinv/inventory.py
+++ b/src/sphobjinv/inventory.py
@@ -30,7 +30,6 @@ Sphinx |objects.inv| files.
"""
import re
-import ssl
import urllib.request as urlrq
from zlib import error as zlib_error
@@ -218,8 +217,15 @@ class Inventory:
#: zlib compression line for v2 |objects.inv| header
header_zlib = "# The remainder of this file is compressed using zlib."
- # Private class member for SSL context, since context creation is slow(?)
- _sslcontext = ssl.create_default_context(cafile=certifi.where())
+ # Private class member for SSL context
+ _sslcontext_ = None
+
+ @property
+ def _sslcontext(self):
+ import ssl
+ if not self._sslcontext_:
+ self._sslcontext_ = ssl.create_default_context(cafile=certifi.where())
+ return self._sslcontext_
@property
def count(self):
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