move utility to its own

1 files changed, 29 insertions, 0 deletions

diff --git a/src/leap/mail/utils.py b/src/leap/mail/utils.py
new file mode 100644
index 0000000..2480efc
--- /dev/null
+++ b/src/leap/mail/utils.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# utils.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Small utilities.
+"""
+
+
+def first(things):
+    """
+    Return the head of a collection.
+    """
+    try:
+        return things[0]
+    except (IndexError, TypeError):
+        return None