Use b64decode and b64encode instead of deprecated decodestring and encodestring

slapos/libnetworkcache.py

@@ -23,7 +23,7 @@ import sys
 import tarfile
 import tempfile
 import traceback
-from base64 import b64encode, decodestring, encodestring
+from base64 import b64encode, b64decode
 try:
   import configparser
   from http.client import HTTPConnection, HTTPSConnection
@@ -431,7 +431,7 @@ class NetworkcacheClient(object):
     k = self.signature_private_key
     if k is None:
         return ''
-    return encodestring(crypto.sign(k, content, 'sha1')).decode()
+    return b64encode(crypto.sign(k, content, 'sha1')).decode()
 
   def _verifySignatureInCertificateList(self, content, signature_string):
     """
@@ -439,7 +439,7 @@ class NetworkcacheClient(object):
       find any.
     """
     if signature_string:
-      signature = decodestring(signature_string.encode())
+      signature = b64decode(signature_string.encode())
       content = content.encode()
       for certificate in self.signature_certificate_list:
         try: