--- a/cutils/shasum.py	Thu Apr 21 00:09:17 2022 +0200
+++ b/cutils/shasum.py	Thu Apr 21 00:24:49 2022 +0200
@@ -382,19 +382,37 @@
 
 def get_blake2b():
     """Get the factory for blake2b"""
-    return hashlib.blake2b
+    try:
+        return hashlib.blake2b
+    except AttributeError:
+        import pyblake2
+        return pyblake2.blake2b
 
 
 def get_blake2s():
     """Get the factory for blake2s"""
-    return hashlib.blake2s
+    try:
+        return hashlib.blake2s
+    except AttributeError:
+        import pyblake2
+        return pyblake2.blake2s
 
 
 def get_blake2_256():
     """Get the factory for blake2-256"""
 
-    def _get_blake():
-        return hashlib.blake2b(digest_size=32)
+    try:
+        hashlib.blake2b
+    except AttributeError:
+        import pyblake2
+
+        def _get_blake():
+            return pyblake2.blake2b(digest_size=32)
+
+    else:
+
+        def _get_blake():
+            return hashlib.blake2b(digest_size=32)
 
     return _get_blake