diff -r 301e2a08b0c9 src/org/python/core/imp.java
--- a/src/org/python/core/imp.java	Thu Nov 06 23:36:56 2014 +0100
+++ b/src/org/python/core/imp.java	Sun Nov 09 12:31:24 2014 +0000
@@ -528,7 +528,7 @@
     static PyObject loadFromSource(PySystemState sys, String name, String modName, String entry) {
         String dirName = sys.getPath(entry);
         String sourceName = "__init__.py";
-        String compiledName = "__init__$py.class";
+        String compiledName = makeCompiledFilename(sourceName);
         // display names are for identification purposes (e.g. __file__): when entry is
         // null it forces java.io.File to be a relative path (e.g. foo/bar.py instead of
         // /tmp/foo/bar.py)
@@ -553,7 +553,7 @@
         if (!pkg) {
             Py.writeDebug(IMPORT_LOG, "trying source " + dir.getPath());
             sourceName = name + ".py";
-            compiledName = name + "$py.class";
+            compiledName = makeCompiledFilename(sourceName);
             displaySourceName = new File(displayDirName, sourceName).getPath();
             displayCompiledName = new File(displayDirName, compiledName).getPath();
             sourceFile = new File(dirName, sourceName);