python3 - 2to3 + miscell obvious tweaks

[sfa.git] / sfa / trust / certificate.py

diff --git a/sfa/trust/certificate.py b/sfa/trust/certificate.py
index dfee4e8..cdad52a 100644 (file)
--- a/sfa/trust/certificate.py
+++ b/sfa/trust/certificate.py
@@ -45,7 +45,7 @@
 #
 
 
-from __future__ import print_function
+
 
 import functools
 import os
@@ -182,7 +182,8 @@ class Keypair:
     # @param filename name of file to store the keypair in
 
     def save_to_file(self, filename):
-        open(filename, 'w').write(self.as_pem())
+        with open(filename, 'w') as output:
+            output.write(self.as_pem())
         self.filename = filename
 
     ##
@@ -520,7 +521,7 @@ class Certificate:
                 req = OpenSSL.crypto.X509Req()
                 reqSubject = req.get_subject()
                 if isinstance(subject, dict):
-                    for key in reqSubject.keys():
+                    for key in list(reqSubject.keys()):
                         setattr(reqSubject, key, subject[key])
                 else:
                     setattr(reqSubject, "CN", subject)
@@ -547,7 +548,7 @@ class Certificate:
         req = OpenSSL.crypto.X509Req()
         subj = req.get_subject()
         if isinstance(name, dict):
-            for key in name.keys():
+            for key in list(name.keys()):
                 setattr(subj, key, name[key])
         else:
             setattr(subj, "CN", name)
@@ -583,7 +584,6 @@ class Certificate:
         data = self.get_data(field='subjectAltName')
         if data:
             message += " SubjectAltName:"
-            counter = 0
             filtered = [self.filter_chunk(chunk) for chunk in data.split()]
             message += " ".join([f for f in filtered if f])
             omitted = len([f for f in filtered if not f])
@@ -791,11 +791,11 @@ class Certificate:
     # @param cert certificate object
 
     def is_signed_by_cert(self, cert):
-        k = cert.get_pubkey()
+        key = cert.get_pubkey()
         logger.debug("Certificate.is_signed_by_cert -> verify on {}\n"
                      "with pubkey {}"
-                     .format(self, k))
-        result = self.verify(k)
+                     .format(self, key))
+        result = self.verify(key)
         return result
 
     ##
@@ -937,7 +937,7 @@ class Certificate:
         return triples
 
     def get_data_names(self):
-        return self.data.keys()
+        return list(self.data.keys())
 
     def get_all_datas(self):
         triples = self.get_extensions()