# Twisted, the Framework of Your Internet # Copyright (C) 2001-2002 Matthew W. Lefkowitz # # This library is free software; you can redistribute it and/or # modify it under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. # # This library 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # """Utilities for dealing with processes. @stability: Unstable """ import os def which(name, flags=os.X_OK): """Search PATH for executable files with the given name. @type name: C{str} @param name: The name for which to search. @type flags: C{int} @param flags: Arguments to L{os.access}. @rtype: C{list} @param: A list of the full paths to files found, in the order in which they were found. """ result = [] exts = filter(None, os.environ.get('PATHEXT', '').split(os.pathsep)) for p in os.environ['PATH'].split(os.pathsep): p = os.path.join(p, name) if os.access(p, flags): result.append(p) for e in exts: pext = p + e if os.access(pext, flags): result.append(pext) return result