From bcafd845c67873f1c122d87c2d14a3ec6130ed2b Mon Sep 17 00:00:00 2001
From: Symphorien Gibol <symphorien+git@xlumurb.eu>
Date: Thu, 25 Jun 2020 12:00:00 +0000
Subject: python3Packages.ihatemoney: pin wtforms to 2.2.1

---
 .../python-modules/ihatemoney/default.nix           | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/python-modules/ihatemoney/default.nix b/pkgs/development/python-modules/ihatemoney/default.nix
index 68a8b85a4ed1..38d762ec3607 100644
--- a/pkgs/development/python-modules/ihatemoney/default.nix
+++ b/pkgs/development/python-modules/ihatemoney/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, lib, fetchFromGitHub, isPy27, nixosTests, fetchpatch
+{ buildPythonPackage, lib, fetchFromGitHub, isPy27, nixosTests, fetchpatch, fetchPypi
 , alembic
 , aniso8601
 , Babel
@@ -32,6 +32,21 @@
 , flask_testing
 }:
 
+# ihatemoney is not really a library. It will only ever be imported
+# by the interpreter of uwsgi. So overrides for its depencies are fine.
+let
+  # https://github.com/spiral-project/ihatemoney/issues/567
+  pinned_wtforms = wtforms.overridePythonAttrs (old: rec {
+    pname = "WTForms";
+    version = "2.2.1";
+    src = fetchPypi {
+      inherit pname version;
+      sha256 = "0q9vkcq6jnnn618h27lx9sas6s9qlg2mv8ja6dn0hy38gwzarnqc";
+    };
+  });
+  pinned_flask_wtf = flask_wtf.override { wtforms = pinned_wtforms; };
+in
+
 buildPythonPackage rec {
   pname = "ihatemoney";
   version = "4.2";
@@ -75,7 +90,7 @@ buildPythonPackage rec {
     flask-restful
     flask_script
     flask_sqlalchemy
-    flask_wtf
+    pinned_flask_wtf
     idna
     itsdangerous
     jinja2
@@ -87,7 +102,7 @@ buildPythonPackage rec {
     sqlalchemy
     sqlalchemy-continuum
     werkzeug
-    wtforms
+    pinned_wtforms
     psycopg2
     debts
   ];
-- 
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