From b4029af73740a2cc1bf4ffa11e5dbe591d141feb 2020-12-04 19:48:05
From: Matthias Bussonnier <bussonniermatthias@gmail.com>
Date: 2020-12-04 19:48:05
Subject: [PATCH] Backport PR #12715: qt: sip changes for PyQt5 >= 5.11

---

diff --git a/IPython/external/qt_loaders.py b/IPython/external/qt_loaders.py
index 46cd9c3..ca7483e 100644
--- a/IPython/external/qt_loaders.py
+++ b/IPython/external/qt_loaders.py
@@ -155,7 +155,12 @@ def qtapi_version():
     try:
         import sip
     except ImportError:
-        return
+        # as of PyQt5 5.11, sip is no longer available as a top-level
+        # module and needs to be imported from the PyQt5 namespace
+        try:
+            from PyQt5 import sip
+        except ImportError:
+            return
     try:
         return sip.getapi('QString')
     except ValueError: