PEP8 fixup on previous patch, remove unused import in test_email.
diff --git a/Lib/email/generator.py b/Lib/email/generator.py
index cba0382..ab37e94 100644
--- a/Lib/email/generator.py
+++ b/Lib/email/generator.py
@@ -129,7 +129,7 @@
             self.write(self._NL)
         laststripped = lines[-1].rstrip('\r\n')
         self.write(laststripped)
-        if len(lines[-1])!=len(laststripped):
+        if len(lines[-1]) != len(laststripped):
             self.write(self._NL)
 
     def _write(self, msg):