diff --git a/letsencrypt/client/challenge_util.py b/letsencrypt/client/challenge_util.py
index 69f351f7d..46b0602be 100644
--- a/letsencrypt/client/challenge_util.py
+++ b/letsencrypt/client/challenge_util.py
@@ -36,7 +36,7 @@ def dvsni_gen_cert(filepath, name, r_b64, nonce, key):
         key.pem, [nonce + CONFIG.INVALID_EXT, name, ext])
 
     with open(filepath, 'w') as chall_cert_file:
-            chall_cert_file.write(cert_pem)
+        chall_cert_file.write(cert_pem)
 
     return le_util.jose_b64encode(dvsni_s)
 
diff --git a/letsencrypt/client/recovery_token_challenge.py b/letsencrypt/client/recovery_token_challenge.py
index 04a3d3ec9..56d401dad 100644
--- a/letsencrypt/client/recovery_token_challenge.py
+++ b/letsencrypt/client/recovery_token_challenge.py
@@ -3,9 +3,8 @@
 .. note:: This challenge has not been implemented into the project yet
 
 """
-import display
-
 from letsencrypt.client import challenge
+from letsencrypt.client import display
 
 
 class RecoveryToken(challenge.Challenge):
diff --git a/letsencrypt/scripts/main.py b/letsencrypt/scripts/main.py
index 9030d8f69..19c34cc64 100755
--- a/letsencrypt/scripts/main.py
+++ b/letsencrypt/scripts/main.py
@@ -201,7 +201,7 @@ def read_file(filename):
 
     """
     try:
-        return filename, file(filename, 'rU').read()
+        return filename, open(filename, 'rU').read()
     except IOError as exc:
         raise argparse.ArgumentTypeError(exc.strerror)