alot/helper: allow call_cmd to take bytes or strings as stdin

This might be a little sloppy, but there are legitimate cases where
stdin is bytes, and cases where it is a string.

1 files changed, 3 insertions, 3 deletions

diff --git a/alot/helper.py b/alot/helper.py
index e621f751..b1880165 100644
--- a/alot/helper.py
+++ b/alot/helper.py
@@ -275,12 +275,12 @@ def call_cmd(cmdlist, stdin=None):
                     by :meth:`subprocess.Popen`
     :type cmdlist: list of str
     :param stdin: string to pipe to the process
-    :type stdin: str
+    :type stdin: str, bytes, or None
     :return: triple of stdout, stderr, return value of the shell command
-    :rtype: str, str, intd
+    :rtype: str, str, int
     """
     termenc = urwid.util.detected_encoding
-    if stdin:
+    if isinstance(stdin, str):
         stdin = stdin.encode(termenc)
     try:
         proc = subprocess.Popen(