From 6115458f4e4c75a4337541187a8aa356c03f26a2 Mon Sep 17 00:00:00 2001
From: Benjamin A. Beasley <code@musicinmybrain.net>
Date: Aug 02 2022 04:58:49 +0000
Subject: Fix RHBZ#2113642 by backporting upstream PR#187


---

diff --git a/187.patch b/187.patch
new file mode 100644
index 0000000..928ee13
--- /dev/null
+++ b/187.patch
@@ -0,0 +1,33 @@
+From c7da2adf2ecfd9e991de9535fb71678812b3dec3 Mon Sep 17 00:00:00 2001
+From: "Benjamin A. Beasley" <code@musicinmybrain.net>
+Date: Tue, 2 Aug 2022 00:53:10 -0400
+Subject: [PATCH] Handle dropped future features
+
+Fixes #186 by handling future features where the mandatory release
+version is None, indicating the feature was dropped. These are now
+included in patsy.eval._ALL_FUTURE_FLAGS rather than causing a
+TypeError.
+
+The first appearance of such a feature is in Python 3.11, in which
+__future__.annotations.getMandatoryRelease() returns None.
+---
+ patsy/eval.py | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/patsy/eval.py b/patsy/eval.py
+index f04cc33..53511fc 100644
+--- a/patsy/eval.py
++++ b/patsy/eval.py
+@@ -29,7 +29,11 @@ def _all_future_flags():
+     flags = 0
+     for feature_name in __future__.all_feature_names:
+         feature = getattr(__future__, feature_name)
+-        if feature.getMandatoryRelease() > sys.version_info:
++        mr = feature.getMandatoryRelease()
++        # None means a planned feature was dropped, or at least postponed
++        # without a final decision; see, for example,
++        # https://docs.python.org/3.11/library/__future__.html#id2.
++        if mr is None or mr > sys.version_info:
+             flags |= feature.compiler_flag
+     return flags
+ 
diff --git a/python-patsy.spec b/python-patsy.spec
index 13f1e98..f17ff44 100644
--- a/python-patsy.spec
+++ b/python-patsy.spec
@@ -9,7 +9,7 @@ the 'formula' mini-language used in R and S.}
 
 Name: python-%{srcname}
 Version: 0.5.2
-Release: 4%{?dist}
+Release: 5%{?dist}
 Summary: Describing statistical models in Python using symbolic formulas
 # All code is under BSD except patsy.compat that is under Python
 # See LICENSE.txt for details
@@ -25,6 +25,12 @@ Patch2: patsy-print-doc.patch
 # The contour routine emits a warning with numpy 1.9
 Patch4: patsy-warn-doc.patch
 Patch5: patsy-doc-conf.patch
+# Handle dropped future features
+# https://github.com/pydata/patsy/pull/187
+#   Fixes:
+# Importing patsy.eval fails on Python 3.11
+# https://github.com/pydata/patsy/issues/186
+Patch6: %{url}/pull/187.patch
 
 BuildArch: noarch
 BuildRequires: make
@@ -100,6 +106,9 @@ popd
 %license LICENSE.txt
 
 %changelog
+* Tue Aug 02 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 0.5.2-5
+- Fix RHBZ#2113642 by backporting upstream PR#187
+
 * Fri Jul 22 2022 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.2-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild