diff --git a/build.xml b/build.xml
index b5408b35f..2bbd31f77 100644
--- a/build.xml
+++ b/build.xml
@@ -101,9 +101,9 @@ svnant.jar.dir=${basedir}/../externals/svnant-jars
         </echo>
     </target>
 
-    <target name="jarless" depends="compile, copy-lib"/>
+    <target name="jarless" depends="compile, pycompile"/>
 
-    <target name="developer-build" depends="prepare-output, jar, copy-lib" description="a local build for developers" />
+    <target name="developer-build" depends="prepare-output, pycompile" description="a local build for developers" />
 
     <target name="full-build" depends="full-check, install" description="a full build with svn checkout" />
 
@@ -364,7 +364,7 @@ svnant.jar.dir=${basedir}/../externals/svnant-jars
 
     <!-- skip-brand can be set in ant.properties or as a system property to keep from updating the
          version.properties file and making the jar on every developer build. -->
-    <target name="brand-version" depends="version-init, svnversion" unless="skip-brand">
+    <target name="brand-version" depends="init, svnversion" unless="skip-brand">
         <condition property="build.svn.revision" value="">
             <not>
                 <isset property="build.svn.revision"/>
@@ -522,8 +522,10 @@ The readme text for the next release will be like:
             <rule pattern="org.jruby.ext.posix.**" result="org.python.posix.@1"/>
             <zipfileset src="extlibs/constantine-0.4.jar"/>
             <rule pattern="com.kenai.constantine.**" result="org.python.constantine.@1"/>
-            <zipfileset src="extlibs/xercesImpl-2.9.1.jar"/>
-            <rule pattern="org.apache.**" result="org.python.apache.@1"/>
+            <rule pattern="org.apache.xml.**" result="org.python.apache.xml.@1"/>
+            <rule pattern="org.apache.xerces.**" result="org.python.apache.xerces.@1"/>
+            <rule pattern="org.apache.wml.**" result="org.python.apache.wml.@1"/>
+            <rule pattern="org.apache.html.**" result="org.python.apache.html.@1"/>
             <manifest>
                 <attribute name="Main-Class" value="org.python.util.jython" />
                 <attribute name="Built-By" value="${user.name}" />
@@ -637,6 +639,15 @@ The readme text for the next release will be like:
         </copy>
     </target>
 
+    <target name="pycompile" depends="jar,copy-lib">
+        <taskdef name="jycompile" classname="org.python.util.JycompileAntTask">
+            <classpath path="${dist.dir}/Lib"/>
+            <classpath path="${dist.dir}/${jython.dev.jar}" />
+            <classpath refid="main.classpath" />
+        </taskdef>
+        <jycompile srcdir="${dist.dir}/Lib" destdir="${dist.dir}/Lib" excludes="test/**"/>
+    </target>
+
     <target name="copy-lib" depends="init, copy-javalib, copy-cpythonlib">
         <!-- XXX untested and most likely broken in 2.5
         <copy todir="${dist.dir}" preservelastmodified="true">
diff --git a/src/org/python/compiler/Future.java b/src/org/python/compiler/Future.java
index 7bca29ae9..b22b774b1 100644
--- a/src/org/python/compiler/Future.java
+++ b/src/org/python/compiler/Future.java
@@ -26,8 +26,7 @@ private boolean check(ImportFrom cand) throws Exception {
             return false;
         int n = cand.getInternalNames().size();
         if (n == 0) {
-            throw new ParseException(
-                    "future statement does not support import *",cand);
+            throw new ParseException("future statement does not support import *", cand);
         }
         for (int i = 0; i < n; i++) {
             String feature = cand.getInternalNames().get(i).getInternalName();
@@ -56,8 +55,7 @@ private boolean check(ImportFrom cand) throws Exception {
             if (feature.equals("GIL") || feature.equals("global_interpreter_lock")) {
                 throw new ParseException("Never going to happen!", cand);
             }
-            throw new ParseException("future feature "+feature+
-                                     " is not defined",cand);
+            throw new ParseException("future feature " + feature + " is not defined", cand);
         }
         return true;
     }
@@ -90,7 +88,7 @@ public void preprocessFutures(mod node,
             if (!(s instanceof ImportFrom))
                 break;
             s.from_future_checked = true;
-            if (!check((ImportFrom) s))
+            if (!check((ImportFrom)s))
                 break;
         }
 
@@ -119,7 +117,7 @@ public static void checkFromFuture(ImportFrom node) throws Exception {
     public boolean areDivisionOn() {
         return division;
     }
-    
+
     public boolean withStatementSupported() {
         return with_statement;
     }
diff --git a/src/org/python/compiler/Module.java b/src/org/python/compiler/Module.java
index 6f028706c..8290c91e7 100644
--- a/src/org/python/compiler/Module.java
+++ b/src/org/python/compiler/Module.java
@@ -435,12 +435,12 @@ public PyCodeConstant PyCode(mod tree, String name,
             c.invokevirtual("org/python/core/PyFrame", "getname_or_null", "(" + $str + ")" + $pyObj);
             c.dup();
             c.ifnonnull(label_got_name);
-   
+
             c.pop();
             c.aload(1);
             c.ldc("__name__");
             c.invokevirtual("org/python/core/PyFrame", "getname_or_null", "(" + $str + ")" + $pyObj);
-            
+
             c.label(label_got_name);
             c.astore(module_tmp);
             c.aload(1);
@@ -448,7 +448,7 @@ public PyCodeConstant PyCode(mod tree, String name,
             c.aload(module_tmp);
             c.invokevirtual("org/python/core/PyFrame", "setlocal", "(" + $str + $pyObj + ")V");
         }
-        
+
         Label genswitch = new Label();
         if (scope.generator) {
             c.goto_(genswitch);
@@ -476,13 +476,13 @@ public PyCodeConstant PyCode(mod tree, String name,
         compiler.parse(tree, c, fast_locals, className, classBody,
                        scope, cflags);
 
-        
+
         // similar to visitResume code in pyasm.py
         if (scope.generator) {
             c.label(genswitch);
-            
+
             c.aload(1);
-            c.getfield("org/python/core/PyFrame", "f_lasti", "I"); 
+            c.getfield("org/python/core/PyFrame", "f_lasti", "I");
             Label[] yields = new Label[compiler.yields.size()+1];
 
             yields[0] = start;
@@ -637,7 +637,7 @@ public void error(String msg,boolean err,PythonTree node)
     public static void compile(mod node, OutputStream ostream,
                                String name, String filename,
                                boolean linenumbers, boolean printResults,
-                               org.python.core.CompilerFlags cflags)
+                               CompilerFlags cflags)
         throws Exception
     {
         Module module = new Module(name, filename, linenumbers);
diff --git a/src/org/python/compiler/ScopesCompiler.java b/src/org/python/compiler/ScopesCompiler.java
index 822803357..05d3423f1 100644
--- a/src/org/python/compiler/ScopesCompiler.java
+++ b/src/org/python/compiler/ScopesCompiler.java
@@ -19,11 +19,11 @@
 import org.python.antlr.ast.Return;
 import org.python.antlr.ast.With;
 import org.python.antlr.ast.Yield;
-import org.python.antlr.ast.comprehension;
 import org.python.antlr.ast.arguments;
 import org.python.antlr.ast.expr_contextType;
 import org.python.antlr.base.expr;
 import org.python.antlr.base.stmt;
+import org.python.core.ParserFacade;
 
 import java.util.ArrayList;
 import java.util.Hashtable;
@@ -85,8 +85,7 @@ public void parse(PythonTree node) throws Exception {
         try {
             visit(node);
         } catch (Throwable t) {
-            throw org.python.core.ParserFacade.fixParseError(null, t,
-                    code_compiler.getFilename());
+            throw ParserFacade.fixParseError(null, t, code_compiler.getFilename());
         }
     }
 
@@ -138,10 +137,10 @@ public Object visitFunctionDef(FunctionDef node) throws Exception {
         beginScope(node.getInternalName(), FUNCSCOPE, node, ac);
         int n = ac.names.size();
         for (int i = 0; i < n; i++) {
-            cur.addParam((String) ac.names.get(i));
+            cur.addParam(ac.names.get(i));
         }
         for (int i = 0; i < ac.init_code.size(); i++) {
-            visit((stmt) ac.init_code.get(i));
+            visit(ac.init_code.get(i));
         }
         cur.markFromParam();
         suite(node.getInternalBody());
@@ -291,7 +290,7 @@ public Object visitYield(Yield node) throws Exception {
         traverse(node);
         return null;
     }
-    
+
     @Override
     public Object visitReturn(Return node) throws Exception {
         if (node.getInternalValue() != null) {
diff --git a/src/org/python/core/PySystemState.java b/src/org/python/core/PySystemState.java
index 2feea66a7..caed8a50f 100644
--- a/src/org/python/core/PySystemState.java
+++ b/src/org/python/core/PySystemState.java
@@ -495,23 +495,23 @@ private static String findRoot(Properties preProperties,
                     jarIndex = lowerCaseClasspath.indexOf(JYTHON_DEV_JAR);
                 }
                 if (jarIndex >= 0) {
-                    int start = classpath.lastIndexOf(java.io.File.pathSeparator, jarIndex) + 1;
+                    int start = classpath.lastIndexOf(File.pathSeparator, jarIndex) + 1;
                     root = classpath.substring(start, jarIndex);
                 } else {
                     // in case JYTHON_JAR is referenced from a MANIFEST inside another jar on the classpath
-                    root = jarFileName;
+                    root = new File(jarFileName).getParent();
                 }
             }
         }
-        if (root != null) {
-            File rootFile = new File(root);
-            try {
-                root = rootFile.getCanonicalPath();
-            } catch (IOException ioe) {
-                root = rootFile.getAbsolutePath();
-            }
+        if (root == null) {
+            return null;
+        }
+        File rootFile = new File(root);
+        try {
+            return rootFile.getCanonicalPath();
+        } catch (IOException ioe) {
+            return rootFile.getAbsolutePath();
         }
-        return root;
     }
 
     public static void determinePlatform(Properties props) {
@@ -554,8 +554,7 @@ private static void initRegistry(Properties preProperties, Properties postProper
             }
             try {
                 addRegistryFile(new File(prefix, "registry"));
-                File homeFile = new File(registry.getProperty("user.home"),
-                                         ".jython");
+                File homeFile = new File(registry.getProperty("user.home"), ".jython");
                 addRegistryFile(homeFile);
             } catch (Exception exc) {
             }
@@ -615,21 +614,23 @@ public static Properties getBaseProperties(){
     }
 
     public static synchronized void initialize() {
-        initialize(null, null, new String[] {""});
+        initialize(null, null);
+    }
+
+    public static synchronized void initialize(Properties preProperties, Properties postProperties) {
+        initialize(preProperties, postProperties, new String[] {""});
     }
 
     public static synchronized void initialize(Properties preProperties,
                                                Properties postProperties,
-                                               String[] argv)
-    {
+                                               String[] argv) {
         initialize(preProperties, postProperties, argv, null);
     }
 
     public static synchronized void initialize(Properties preProperties,
                                                Properties postProperties,
                                                String[] argv,
-                                               ClassLoader classLoader)
-    {
+                                               ClassLoader classLoader) {
         initialize(preProperties, postProperties, argv, classLoader, new ClassicPyObjectAdapter());
     }
 
diff --git a/src/org/python/core/imp.java b/src/org/python/core/imp.java
index 185c7d1df..b0a507daf 100644
--- a/src/org/python/core/imp.java
+++ b/src/org/python/core/imp.java
@@ -133,6 +133,14 @@ public static byte[] readCode(String name, InputStream fp, boolean testing) thro
         return data;
     }
 
+    public static byte[] compileSource(String name, File file) {
+        return compileSource(name, file, null);
+    }
+
+    public static byte[] compileSource(String name, File file, String sourceFilename) {
+        return compileSource(name, file, sourceFilename, null);
+    }
+
     public static byte[] compileSource(String name, File file, String sourceFilename,
             String compiledFilename) {
         if (sourceFilename == null) {
@@ -209,8 +217,7 @@ public static byte[] compileSource(String name, InputStream fp, String filename)
         }
     }
 
-    public static PyObject createFromSource(String name, InputStream fp,
-            String filename) {
+    public static PyObject createFromSource(String name, InputStream fp, String filename) {
         return createFromSource(name, fp, filename, null);
     }
 
diff --git a/src/org/python/expose/generate/ExposeTask.java b/src/org/python/expose/generate/ExposeTask.java
index 442e1b1ed..83e8114f3 100644
--- a/src/org/python/expose/generate/ExposeTask.java
+++ b/src/org/python/expose/generate/ExposeTask.java
@@ -7,93 +7,44 @@
 import java.util.Set;
 
 import org.apache.tools.ant.BuildException;
-import org.apache.tools.ant.taskdefs.MatchingTask;
-import org.apache.tools.ant.types.Path;
-import org.apache.tools.ant.util.GlobPatternMapper;
-import org.apache.tools.ant.util.SourceFileScanner;
 import org.objectweb.asm.ClassWriter;
-import org.python.util.Generic;
+import org.python.util.GlobMatchingTask;
 
-public class ExposeTask extends MatchingTask {
+public class ExposeTask extends GlobMatchingTask {
 
-    private Path src;
-
-    private File destDir;
-
-    private Set<File> toExpose = Generic.set();
-
-    /**
-     * Set the source directories to find the class files to be exposed.
-     */
-    public void setSrcdir(Path srcDir) {
-        if(src == null) {
-            src = srcDir;
-        } else {
-            src.append(srcDir);
-        }
-    }
-
-    /**
-     * Gets the source dirs to find the class files to be exposed.
-     */
-    public Path getSrcdir() {
-        return src;
-    }
-
-    /**
-     * Set the destination directory into which the Java source files should be compiled.
-     *
-     * @param destDir
-     *            the destination director
-     */
-    public void setDestdir(File destDir) {
-        this.destDir = destDir;
+    @Override
+    protected String getFrom() {
+        return "*.class";
     }
 
-    /**
-     * Gets the destination directory into which the java source files should be compiled.
-     *
-     * @return the destination directory
-     */
-    public File getDestdir() {
-        return destDir;
+    @Override
+    protected String getTo() {
+        return "*.class";
     }
 
     @Override
-    // documentation inherited
-    public void execute() throws BuildException {
-        checkParameters();
-        toExpose.clear();
-        for(String srcEntry : src.list()) {
-            File srcDir = getProject().resolveFile(srcEntry);
-            if(!srcDir.exists()) {
-                throw new BuildException("srcdir '" + srcDir.getPath() + "' does not exist!",
-                                         getLocation());
-            }
-            String[] files = getDirectoryScanner(srcDir).getIncludedFiles();
-            scanDir(srcDir, destDir != null ? destDir : srcDir, files);
-        }
-        if(toExpose.size() > 1) {
+    public void process(Set<File> toExpose) throws BuildException {
+        if (toExpose.size() > 1) {
             log("Exposing " + toExpose.size() + " classes");
-        } else if(toExpose.size() == 1) {
+        } else if (toExpose.size() == 1) {
             log("Exposing 1 class");
         }
-        for(File f : toExpose) {
+        for (File f : toExpose) {
             ExposedTypeProcessor etp;
             try {
                 etp = new ExposedTypeProcessor(new FileInputStream(f));
-            } catch(IOException e) {
+            } catch (IOException e) {
                 throw new BuildException("Unable to read '" + f + "' to expose it", e);
-            } catch(InvalidExposingException iee) {
+            } catch (InvalidExposingException iee) {
                 throw new BuildException(iee.getMessage());
             }
-            for(MethodExposer exposer : etp.getMethodExposers()) {
+            for (MethodExposer exposer : etp.getMethodExposers()) {
                 generate(exposer);
             }
-            for(DescriptorExposer exposer : etp.getDescriptorExposers()) {
+            for (DescriptorExposer exposer : etp.getDescriptorExposers()) {
                 generate(exposer);
             }
-            if(etp.getNewExposer() != null) {
+            if (etp.getNewExposer() != null) {
                 generate(etp.getNewExposer());
             }
             generate(etp.getTypeExposer());
@@ -114,39 +65,16 @@ private void write(String destClass, byte[] newClassfile) {
         try {
             out = new FileOutputStream(dest);
             out.write(newClassfile);
-        } catch(IOException e) {
+        } catch (IOException e) {
             throw new BuildException("Unable to write to '" + dest + "'", e);
         } finally {
-            if(out != null) {
+            if (out != null) {
                 try {
                     out.close();
-                } catch(IOException e) {
+                } catch (IOException e) {
                     // Le sigh...
                 }
             }
         }
     }
-
-    protected void scanDir(File srcDir, File destDir, String[] files) {
-        GlobPatternMapper m = new GlobPatternMapper();
-        m.setFrom("*.class");
-        m.setTo("*.class");
-        SourceFileScanner sfs = new SourceFileScanner(this);
-        for(File file : sfs.restrictAsFiles(files, srcDir, destDir, m)) {
-            toExpose.add(file);
-        }
-    }
-
-    /**
-     * Check that all required attributes have been set and nothing silly has been entered.
-     */
-    protected void checkParameters() throws BuildException {
-        if(src == null || src.size() == 0) {
-            throw new BuildException("srcdir attribute must be set!", getLocation());
-        }
-        if(destDir != null && !destDir.isDirectory()) {
-            throw new BuildException("destination directory '" + destDir + "' does not exist "
-                    + "or is not a directory", getLocation());
-        }
-    }
 }
diff --git a/src/org/python/modules/_py_compile.java b/src/org/python/modules/_py_compile.java
index ed3cfecde..02bca9914 100644
--- a/src/org/python/modules/_py_compile.java
+++ b/src/org/python/modules/_py_compile.java
@@ -13,41 +13,46 @@ public class _py_compile {
     public static PyList __all__ = new PyList(new PyString[] { new PyString("compile") });
 
     public static boolean compile(String filename, String cfile, String dfile) {
-        // Resolve relative path names. dfile is only used for error
-        // messages and should not be resolved
+        // Resolve relative path names. dfile is only used for error messages and should not be
+        // resolved
         PySystemState sys = Py.getSystemState();
         filename = sys.getPath(filename);
         cfile = sys.getPath(cfile);
-        
+
         File file = new File(filename);
         if (!file.exists()) {
             throw Py.IOError(Errno.ENOENT, filename);
         }
-        String name = file.getName();
+        String name = getModuleName(file);
+
+        byte[] bytes = org.python.core.imp.compileSource(name, file, dfile, cfile);
+        org.python.core.imp.cacheCompiledSource(filename, cfile, bytes);
+
+        return bytes.length > 0;
+    }
+
+    public static final String getModuleName(File f) {
+        String name = f.getName();
         int dot = name.lastIndexOf('.');
         if (dot != -1) {
             name = name.substring(0, dot);
         }
 
         // name the __init__ module after its package
-        File dir = file.getParentFile();
-        if (dir != null && name.equals("__init__")) {
+        File dir = f.getParentFile();
+        if (name.equals("__init__")) {
             name = dir.getName();
             dir = dir.getParentFile();
         }
 
-        // Make the compiled classfile's name the fully qualified with a package by
-        // walking up the directory tree looking for __init__.py files. Don't
-        // check for __init__$py.class since we're compiling source here and the
-        // existence of a class file without corresponding source probably doesn't
-        // indicate a package.
+        // Make the compiled classfile's name fully qualified with a package by walking up the
+        // directory tree looking for __init__.py files. Don't check for __init__$py.class since
+        // we're compiling source here and the existence of a class file without corresponding
+        // source probably doesn't indicate a package.
         while (dir != null && (new File(dir, "__init__.py").exists())) {
             name = dir.getName() + "." + name;
             dir = dir.getParentFile();
         }
-        byte[] bytes = org.python.core.imp.compileSource(name, file, dfile, cfile);
-        org.python.core.imp.cacheCompiledSource(filename, cfile, bytes);
-
-        return bytes.length > 0;
+        return name;
     }
 }
diff --git a/src/org/python/util/GlobMatchingTask.java b/src/org/python/util/GlobMatchingTask.java
new file mode 100644
index 000000000..48d9e80ed
--- /dev/null
+++ b/src/org/python/util/GlobMatchingTask.java
@@ -0,0 +1,101 @@
+package org.python.util;
+
+import java.io.File;
+import java.util.Set;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.taskdefs.MatchingTask;
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.util.GlobPatternMapper;
+import org.apache.tools.ant.util.SourceFileScanner;
+
+public abstract class GlobMatchingTask extends MatchingTask {
+
+    private Path src;
+
+    protected File destDir;
+
+    private Set<File> toExpose = Generic.set();
+
+    /**
+     * Set the source directories to find the class files to be exposed.
+     */
+    public void setSrcdir(Path srcDir) {
+        if (src == null) {
+            src = srcDir;
+        } else {
+            src.append(srcDir);
+        }
+    }
+
+    /**
+     * Gets the source dirs to find the class files to be exposed.
+     */
+    public Path getSrcdir() {
+        return src;
+    }
+
+    /**
+     * Set the destination directory into which the Java source files should be compiled.
+     *
+     * @param destDir
+     *            the destination director
+     */
+    public void setDestdir(File destDir) {
+        this.destDir = destDir;
+    }
+
+    /**
+     * Gets the destination directory into which the java source files should be compiled.
+     *
+     * @return the destination directory
+     */
+    public File getDestdir() {
+        return destDir;
+    }
+
+    @Override
+    public void execute() throws BuildException {
+        checkParameters();
+        toExpose.clear();
+        for (String srcEntry : src.list()) {
+            File srcDir = getProject().resolveFile(srcEntry);
+            if (!srcDir.exists()) {
+                throw new BuildException("srcdir '" + srcDir.getPath() + "' does not exist!",
+                                         getLocation());
+            }
+            String[] files = getDirectoryScanner(srcDir).getIncludedFiles();
+            scanDir(srcDir, destDir != null ? destDir : srcDir, files);
+        }
+        process(toExpose);
+    }
+
+    protected abstract void process(Set<File> matches);
+
+    protected abstract String getFrom();
+
+    protected abstract String getTo();
+
+    protected void scanDir(File srcDir, File destDir, String[] files) {
+        GlobPatternMapper m = new GlobPatternMapper();
+        m.setFrom(getFrom());
+        m.setTo(getTo());
+        SourceFileScanner sfs = new SourceFileScanner(this);
+        for (File file : sfs.restrictAsFiles(files, srcDir, destDir, m)) {
+            toExpose.add(file);
+        }
+    }
+
+    /**
+     * Check that all required attributes have been set and nothing silly has been entered.
+     */
+    protected void checkParameters() throws BuildException {
+        if (src == null || src.size() == 0) {
+            throw new BuildException("srcdir attribute must be set!", getLocation());
+        }
+        if (destDir != null && !destDir.isDirectory()) {
+            throw new BuildException("destination directory '" + destDir + "' does not exist "
+                    + "or is not a directory", getLocation());
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/org/python/util/JycompileAntTask.java b/src/org/python/util/JycompileAntTask.java
new file mode 100644
index 000000000..762722dd5
--- /dev/null
+++ b/src/org/python/util/JycompileAntTask.java
@@ -0,0 +1,56 @@
+package org.python.util;
+
+import java.io.File;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.tools.ant.BuildException;
+import org.python.core.PyException;
+import org.python.core.PySystemState;
+import org.python.core.imp;
+import org.python.modules._py_compile;
+
+public class JycompileAntTask extends GlobMatchingTask {
+
+    @Override
+    public void process(Set<File> toCompile) throws BuildException {
+        if (toCompile.size() == 0) {
+            return;
+        } else if (toCompile.size() > 1) {
+            log("Compiling " + toCompile.size() + " files");
+        } else if (toCompile.size() == 1) {
+            log("Compiling 1 file");
+        }
+        Properties props = new Properties();
+        props.setProperty(PySystemState.PYTHON_CACHEDIR_SKIP, "true");
+        PySystemState.initialize(System.getProperties(), props);
+        for (File src : toCompile) {
+            String name = _py_compile.getModuleName(src);
+            String compiledFilePath = name.replace('.', '/');
+            if (src.getName().endsWith("__init__.py")) {
+                compiledFilePath += "/__init__";
+            }
+            File compiled = new File(destDir, compiledFilePath + "$py.class");
+            byte[] bytes;
+            try {
+                bytes = imp.compileSource(name, src);
+            } catch (PyException pye) {
+                pye.printStackTrace();
+                throw new BuildException("Compile failed; see the compiler error output for details.");
+            }
+            File dir = compiled.getParentFile();
+            if (!dir.exists() && !compiled.getParentFile().mkdirs()) {
+                throw new BuildException("Unable to make directory for compiled file: " + compiled);
+            }
+            imp.cacheCompiledSource(src.getAbsolutePath(), compiled.getAbsolutePath(), bytes);
+        }
+    }
+
+    protected String getFrom() {
+        return "*.py";
+    }
+
+    protected String getTo() {
+        return "*$py.class";
+    }
+}