From: Bob Halley <halley@dnspython.org>
Date: Tue, 16 Nov 2021 14:36:17 +0000 (-0800)
Subject: fix session check when httpx is not installed
X-Git-Tag: v2.2.0rc1~30^2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abac716478847c4551e238ad8e25d01ba115f241;p=thirdparty%2Fdnspython.git

fix session check when httpx is not installed
---

diff --git a/dns/query.py b/dns/query.py
index 1111e089..314d8d83 100644
--- a/dns/query.py
+++ b/dns/query.py
@@ -328,7 +328,10 @@ def https(q, where, timeout=None, port=443, source=None, source_port=0,
             transport_adapter = SourceAddressAdapter(source)
 
     if session:
-        _is_httpx = isinstance(session, httpx.Client)
+        if _have_httpx:
+            _is_httpx = isinstance(session, httpx.Client)
+        else:
+            _is_httpx = False
         if _is_httpx and not _httpx_ok:
             raise NoDOH('Session is httpx, but httpx cannot be used for '
                         'the requested operation.')