$NetBSD: patch-ah,v 1.1 2003/01/22 17:05:33 drochner Exp $

--- Lib/os.py.orig	Wed Jan 22 17:27:56 2003
+++ Lib/os.py	Wed Jan 22 17:30:02 2003
@@ -291,7 +291,7 @@
     _execvpe(file, args)
 
 def execvpe(file, args, env):
-    """execv(file, args, env)
+    """execvpe(file, args, env)
 
     Execute the executable file (which is searched for along $PATH)
     with argument list args and environment env , replacing the
@@ -301,8 +301,9 @@
 
 __all__.extend(["execl","execle","execlp","execlpe","execvp","execvpe"])
 
-_notfound = None
 def _execvpe(file, args, env=None):
+    from errno import ENOENT, ENOTDIR
+
     if env is not None:
         func = execve
         argrest = (args, env)
@@ -310,7 +311,7 @@
         func = execv
         argrest = (args,)
         env = environ
-    global _notfound
+
     head, tail = path.split(file)
     if head:
         apply(func, (file,) + argrest)
@@ -320,30 +321,21 @@
     else:
         envpath = defpath
     PATH = envpath.split(pathsep)
-    if not _notfound:
-        if sys.platform[:4] == 'beos':
-            #  Process handling (fork, wait) under BeOS (up to 5.0)
-            #  doesn't interoperate reliably with the thread interlocking
-            #  that happens during an import.  The actual error we need
-            #  is the same on BeOS for posix.open() et al., ENOENT.
-            try: unlink('/_#.# ## #.#')
-            except error, _notfound: pass
-        else:
-            import tempfile
-            t = tempfile.mktemp()
-            # Exec a file that is guaranteed not to exist
-            try: execv(t, ('blah',))
-            except error, _notfound: pass
-    exc, arg = error, _notfound
+    saved_exc = None
+    saved_tb = None
     for dir in PATH:
         fullname = path.join(dir, file)
         try:
             apply(func, (fullname,) + argrest)
-        except error, (errno, msg):
-            if errno != arg[0]:
-                exc, arg = error, (errno, msg)
-    raise exc, arg
-
+        except error, e:
+            tb = sys.exc_info()[2]
+            if (e.errno != ENOENT and e.errno != ENOTDIR
+                and saved_exc is None):
+                saved_exc = e
+                saved_tb = tb
+    if saved_exc:
+        raise error, saved_exc, saved_tb
+    raise error, e, tb
 
 # Change environ to automatically call putenv() if it exists
 try: