Better error message for running szbuild.py out of directory.

pydir/utils.py

Index: pydir/utils.py
diff --git a/pydir/utils.py b/pydir/utils.py
index 6fdedfafae03f4d1968e303661a9107c699fe818..06e125ca9ce4ba4fc4f4cd3af2225d43ba4c421b 100644
--- a/pydir/utils.py
+++ b/pydir/utils.py
@@ -17,7 +17,8 @@ def FindBaseNaCl():
     nacl = 'native_client'
     path_list = os.getcwd().split(os.sep)
     if nacl not in path_list:
-        return None
+        print "Script must be executed from within \'native_client\' directory"

[Jim Stichnoth, 2016/01/07 01:15:58]

I would use one of these strings instead:

  print "Script must be executed from within 'native_client' directory"
  print 'Script must be executed from within \'native_client\' directory'
  print 'Script must be executed from within <native_client> directory'

+        exit(1)
     last_index = len(path_list) - path_list[::-1].index(nacl)
     return os.sep.join(path_list[:last_index])