New comment by Goorzhel on void-packages repository

https://github.com/void-linux/void-packages/pull/29020#issuecomment-785551707

Comment:
```
ImportError while importing test module '/builddir/pykwalify-1.8.0/tests/test_core.py'.
<...>
tests/test_core.py:16: in <module>
    from testfixtures import compare
ModuleNotFoundError: No module named 'testfixtures'
```

I can dispel that with 
```
diff --git a/srcpkgs/python3-pykwalify/template b/srcpkgs/python3-pykwalify/template
index c53d82aa88..2c2fabe2e8 100644
--- a/srcpkgs/python3-pykwalify/template
+++ b/srcpkgs/python3-pykwalify/template
@@ -9 +9 @@ depends="python3-setuptools python3-ruamel.yaml python3-docopt python3-dateutil"
-checkdepends="$depends python3-pytest"
+checkdepends="$depends python3-pytest python3-pip"
@@ -16,0 +17,4 @@ checksum=796b2ad3ed4cb99b88308b533fb2f559c30fa6efb4fa9fda11347f483d245884
+pre_check() {
+       pip install testfixtures
+}
+
```
but a better bet would be to package `python3-testfixtures` for Void as well.