fix altsep

Author: glaukiol1

os/os.module.go

@@ -66,6 +66,14 @@ func getdevnull() py.String {
 	return py.String("/dev/null")
 }
 
+// getaltsep returns the alternative path seperator. This is set to '/' on Windows systems where sep is a backslash
+func getaltsep() py.Object {
+	if runtime.GOOS == "windows" {
+		return py.String("/")
+	}
+	return py.None
+}
+
 func init() {
 	methods := []*py.Method{
 		py.MustNewMethod("getcwd", getCwd, 0, "Get the current working directory"),
@@ -86,7 +94,7 @@ func init() {
 		"curdir":  py.String("."),
 		"pardir":  py.String(".."),
 		"extsep":  py.String("."),
-		"altsep":  py.None,
+		"altsep":  getaltsep(),
 		"pathsep": getpathsep(),
 		"linesep": getlinesep(),
 		"defpath": getdefpath(),