diff options
Diffstat (limited to 'source4/scripting/python')
-rw-r--r-- | source4/scripting/python/samba/external.py | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/external.py b/source4/scripting/python/samba/external.py new file mode 100644 index 0000000000..eca910b794 --- /dev/null +++ b/source4/scripting/python/samba/external.py @@ -0,0 +1,50 @@ +#!/usr/bin/python + +# Unix SMB/CIFS implementation. +# Copyright (C) Andrew Tridgell 2010 +# +# 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/>. +# + +import sys, os + +def samba_find_external(directory): + '''insert into out module search path the path to an + external library''' + for p in sys.path: + dir = os.path.join(p, directory) + if os.path.isdir(dir): + sys.path.insert(0, dir) + return + + # finally try in the local directory, to handle in-tree testing + dir = os.path.join("scripting/python", directory) + if os.path.isdir(dir): + sys.path.insert(0, dir) + return + + print "Failed to find external python library %s" % directory + raise + + +def samba_external_dns_resolver(): + '''try and import the dns.resolver library, and if it fails + then use a local copy from the external directory''' + + try: + import dns.resolver as dns + except: + samba_find_external("samba_external/dnspython") + import dns.resolver as dns + return dns |