1 files changed, 30 insertions, 0 deletions
diff --git a/Lib/os.py b/Lib/os.py
index dc1ef5a..7322fa5 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -38,3 +38,33 @@ except ImportError:
 	import macpath
 	path = macpath
 	del macpath
+
+def execl(file, *args):
+	execv(file, args)
+
+def execle(file, *args):
+	env = args[-1]
+	execve(file, args[:-1], env)
+
+def execlp(file, *args):
+	execvp(file, args)
+
+def execvp(file, args):
+	if '/' in file:
+		execv(file, args)
+		return
+	ENOENT = 2
+	if environ.has_key('PATH'):
+		import string
+		PATH = string.splitfields(environ['PATH'], ':')
+	else:
+		PATH = ['', '/bin', '/usr/bin']
+	exc, arg = (ENOENT, 'No such file or directory')
+	for dir in PATH:
+		fullname = path.join(dir, file)
+		try:
+			execv(fullname, args)
+		except error, (errno, msg):
+			if errno != ENOENT:
+				exc, arg = error, (errno, msg)
+	raise exc, arg