Update to 1.2.6

PKGBUILD

 # Maintainer: Antonio Rojas <arojas@archlinux.org>
 
 pkgname=brial
-pkgver=1.2.5
-pkgrel=6
+pkgver=1.2.6
+pkgrel=1
 pkgdesc="Library for polynomials over boolean rings"
 arch=(x86_64)
 url="https://github.com/BRiAl/BRiAl"
@@ -10,20 +10,11 @@ license=(GPL)
 depends=(m4ri)
 makedepends=(boost python python2)
 optdepends=('python: Python 3 bindings' 'python2: Python 2 bindings')
-source=("https://github.com/BRiAl/BRiAl/releases/download/$pkgver/brial-$pkgver.tar.bz2"
-        brial-imp.patch
-        brial-python-3.8.patch::"https://github.com/BRiAl/BRiAl/commit/74d86170.patch")
-sha256sums=('c4921d5008ac9122452e6f93abb696ef21ceac8e7170008ea7c7b05508da8d34'
-            '2f16ac32f905980ea49e2a4cdc7d44a3eec4d794e4cbde24a583a8d1045df2f8'
-            'c5edcecdaa68a1fcb8e0215db439ecfb66e33b588e15d32dceb4c78f16ec59da')
+source=("https://github.com/BRiAl/BRiAl/releases/download/$pkgver/brial-$pkgver.tar.bz2")
+sha256sums=('a8185e7b17b90f20d4babdc9c65ae0d543100410ab05f6ba62704f1df4936d18')
 
 prepare() {
   cp -r $pkgname-$pkgver/sage-brial{,-py2}
-
-  cd $pkgname-$pkgver
-  patch -p1 -i ../brial-python-3.8.patch # Port away from deprecated python API
-  cd sage-brial
-  patch -p1 -i "$srcdir"/brial-imp.patch # For away from deprecated imp module
 }
 
 build() {

brial-imp.patch

---- sage-brial/brial/gbrefs.py.orig	2019-09-01 22:09:29.585226434 +0000
-+++ sage-brial/brial/gbrefs.py	2019-09-01 22:10:49.416270516 +0000
-@@ -6,7 +6,7 @@
-     from io import StringIO
- import uu
- import re
--import imp
-+import types
- from .PyPolyBoRi import *
- AUTO = "auto"
- SINGLE = "single"
-@@ -118,7 +118,7 @@
- 
- 
- def dyn_generate(content, name):
--    module = imp.new_module(name)
-+    module = types.ModuleType(name)
-     import_header = """from .PyPolyBoRi import Variable,Monomial, Polynomial, Ring, OrderCode
- from itertools import chain
- from .blocks import AlternatingBlock,Block,AdderBlock,if_then,HigherOrderBlock,declare_ring as orig_declare_ring,declare_block_scheme,MacroBlock\n