sign release with OpenSSL.crypto.sign (last remaining use of ed25519)

oml/utils.py

@@ -16,7 +16,6 @@ import subprocess
 import base64
 
 import ox
-import ed25519
 from OpenSSL.crypto import (
     load_privatekey, load_certificate,
     dump_privatekey, dump_certificate,
@@ -123,6 +122,7 @@ def valid(key, value, sig):
     '''
     validate that value was signed by key
     '''
+    import ed25519
     if isinstance(sig, str):
         sig = sig.encode()
     if isinstance(value, str):