Fix print for python3 in certbot-auto (#4263)

Use printfunction from __future__ in order to get letsencrypt installed on a python3 only system.

1 files changed, 5 insertions, 2 deletions

diff --git a/letsencrypt-auto-source/letsencrypt-auto b/letsencrypt-auto-source/letsencrypt-auto
index cc248a36a..35c7a530c 100755
--- a/letsencrypt-auto-source/letsencrypt-auto
+++ b/letsencrypt-auto-source/letsencrypt-auto
@@ -1093,6 +1093,9 @@ else
 On failure, return non-zero.
 
 """
+
+from __future__ import print_function
+
 from distutils.version import LooseVersion
 from json import loads
 from os import devnull, environ
@@ -1194,12 +1197,12 @@ def main():
     flag = argv[1]
     try:
         if flag == '--latest-version':
-            print latest_stable_version(get)
+            print(latest_stable_version(get))
         elif flag == '--le-auto-script':
             tag = argv[2]
             verified_new_le_auto(get, tag, dirname(argv[0]))
     except ExpectedError as exc:
-        print exc.args[0], exc.args[1]
+        print(exc.args[0], exc.args[1])
         return 1
     else:
         return 0