Spack in v0.20 end-of-lined package support for Python <3.7 and removed some "defunct" packages, which broke the packages included in the Chimbuko source. To fix this, I have imported the deprecated py-contextvars package (this module is part of Python 3.7+) from old Spack v0.19, and have removed Python <3.3 support from py-eventlet, which would require importing many more deprecated packages from the old Spack.

Author: giltirn

spack/repo/chimbuko/packages/binutils/cr16.patch

@@ -0,0 +1,21 @@
+# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+
+from spack.package import *
+
+
+class PyContextvars(PythonPackage):
+    """This package implements a backport of Python 3.7 contextvars module
+    (see PEP 567) for Python 3.6."""
+
+    homepage = "https://github.com/MagicStack/contextvars"
+    pypi = "contextvars/contextvars-2.4.tar.gz"
+
+    version("2.4", sha256="f38c908aaa59c14335eeea12abea5f443646216c4e29380d7bf34d2018e2c39e")
+
+    depends_on("py-setuptools", type="build")
+    depends_on("py-immutables@0.9:", type=("build", "run"))
+    

spack/repo/chimbuko/packages/binutils/package.py

@@ -18,4 +18,3 @@ class PyEventlet(PythonPackage):
     depends_on('py-greenlet@0.3:')
     depends_on('py-dnspython@1.15.0:1.16.0', type=('build', 'run') )
     depends_on('py-monotonic@1.4:', type=('build', 'run'), when='^python@:3.5')
-    depends_on('py-enum34', type=('build', 'run'), when='^python@:3.3.99')

spack/repo/chimbuko/packages/binutils/update_symbol-2.26.patch

@@ -34,7 +34,7 @@ class PyTrio(PythonPackage):
     depends_on('py-outcome', type=('build', 'run'))
     depends_on('py-sniffio', type=('build', 'run'))
     depends_on('py-contextvars@2.1:', type=('build', 'run'),
-            when='^python@:3.6.99')
+               when='^python@:3.6')
 
     extends('python')