Added support for importing Python modules from paths other than Java Classpath.

.classpath

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
 	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry excluding="src/example/java/|src/main/java/" including="Lib/" kind="src" path=""/>
 	<classpathentry kind="src" path="src/example/java"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
 	<classpathentry kind="var" path="JYTHON_HOME/jython.jar" sourcepath="/JYTHON_HOME/src"/>

.pydevproject

@@ -2,6 +2,9 @@
 <?eclipse-pydev version="1.0"?>
 
 <pydev_project>
-<pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python 2.6</pydev_property>
+<pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">jython 2.5</pydev_property>
 <pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
+<pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH">
+<path>/jywrapper/Lib</path>
+</pydev_pathproperty>
 </pydev_project>

src/example/java/net/abhinavsarkar/jywrapper/example/DependentTest.java

@@ -8,6 +8,18 @@ import org.junit.Test;
 
 public class DependentTest {
 
+	private static final String PYLIB_DIR_NAME = "Lib";
+
+	static {
+		try {
+			JyWrapper.addToPythonPath(
+					DependentTest.class.getClassLoader()
+						.getResource(PYLIB_DIR_NAME).toURI());
+		} catch (final Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 	private final Employee Employee_ = JyWrapper.wrap(Employee.class, "person.Employee");
 
 	private final Dependent Dependent_ = JyWrapper.wrap(Dependent.class, "person.Dependent");

src/example/java/net/abhinavsarkar/jywrapper/example/EmployeeTest.java

@@ -3,12 +3,25 @@ package net.abhinavsarkar.jywrapper.example;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
+
 import net.abhinavsarkar.jywrapper.JyWrapper;
 
 import org.junit.Test;
 
 public class EmployeeTest {
 
+	private static final String PYLIB_DIR_NAME = "Lib";
+
+	static {
+		try {
+			JyWrapper.addToPythonPath(
+					DependentTest.class.getClassLoader()
+						.getResource(PYLIB_DIR_NAME).toURI());
+		} catch (final Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 	private final Employee Employee_ = JyWrapper.wrap(Employee.class, "person.Employee");
 
 	private final Dependent Dependent_ = JyWrapper.wrap(Dependent.class, "person.Dependent");

src/main/java/net/abhinavsarkar/jywrapper/JyWrapper.java

@@ -2,14 +2,17 @@ package net.abhinavsarkar.jywrapper;
 
 import static net.abhinavsarkar.jywrapper.Messages._;
 
-
+import java.net.URI;
 import net.abhinavsarkar.jywrapper.annotation.Wraps;
 import net.abhinavsarkar.jywrapper.exception.PythonImportNotFoundException;
 
+import org.python.core.Py;
 import org.python.core.PyClass;
 import org.python.core.PyFunction;
 import org.python.core.PyModule;
 import org.python.core.PyObject;
+import org.python.core.PyString;
+import org.python.core.PySystemState;
 import org.python.core.PyType;
 
 /**
@@ -89,4 +92,21 @@ public final class JyWrapper {
 		return newInstance;
 	}
 
+	public static void addToPythonPath(final URI path) {
+		final PySystemState pySystemState = Py.getSystemState();
+		final PyString resolvedPath = Util.resolvePath(path);
+		if (resolvedPath != null && !pySystemState.path.contains(resolvedPath)) {
+			pySystemState.path.append(resolvedPath);
+		}
+	}
+
+
+	public static void removeFromPythonPath(final URI path) {
+		final PySystemState pySystemState = Py.getSystemState();
+		final PyString resolvedPath = Util.resolvePath(path);
+		if (resolvedPath != null && pySystemState.path.contains(resolvedPath)) {
+			pySystemState.path.remove(resolvedPath);
+		}
+	}
+
 }

src/main/java/net/abhinavsarkar/jywrapper/PyImportLoader.java

@@ -9,7 +9,6 @@ import net.abhinavsarkar.jywrapper.exception.PythonImportNotFoundException;
 import org.python.core.Py;
 import org.python.core.PyException;
 import org.python.core.PyObject;
-import org.python.core.PySystemState;
 
 /**
  * @author AbhinavSarkar
@@ -17,8 +16,8 @@ import org.python.core.PySystemState;
  */
 public final class PyImportLoader {
 
-	private static final PyObject importer = new PySystemState().getBuiltins()
+	private static final PyObject importer =
-		.__getitem__(Py.newString("__import__")); //$NON-NLS-1$
+		Py.getSystemState().getBuiltins().__getitem__(Py.newString("__import__"));
 
 	private static final ConcurrentHashMap<String, PyObject> loadedPyImports =
 		new ConcurrentHashMap<String, PyObject>();
@@ -35,7 +34,7 @@ public final class PyImportLoader {
 			throws PythonImportNotFoundException {
 		if (!loadedPyImports.containsKey(fullImportName)) {
 			final int i = fullImportName.lastIndexOf('.');
-			final String errorMsg = _("PyImportLoader.1", fullImportName); //$NON-NLS-1$
+			final String errorMsg = _("PyImportLoader.1", fullImportName, Py.getSystemState().path); //$NON-NLS-1$
 			PyObject pyImport;
 			if (i == -1) {
 				final String pyModuleName = fullImportName;
@@ -59,4 +58,5 @@ public final class PyImportLoader {
 		}
 		return loadedPyImports.get(fullImportName);
 	}
+
 }

src/main/java/net/abhinavsarkar/jywrapper/Util.java

@@ -2,6 +2,10 @@ package net.abhinavsarkar.jywrapper;
 
 import static net.abhinavsarkar.jywrapper.Messages._;
 
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+
 import org.python.core.Py;
 import org.python.core.PyClass;
 import org.python.core.PyFunction;
@@ -83,4 +87,32 @@ final class Util {
 		return word.replaceAll("([A-Z])", "_$1").toLowerCase();   //$NON-NLS-1$ //$NON-NLS-2$
 	}
 
+	static PyString resolvePath(final URI pythonPath) {
+		PyString resolvedPath = null;
+		if (pythonPath.getScheme().equals("jar")) {
+			final String schemeSpecificPart = pythonPath.getSchemeSpecificPart();
+			final int lastIndexOf = schemeSpecificPart.lastIndexOf("!");
+			final String jarPath = schemeSpecificPart.substring(5, lastIndexOf);
+			final File file = new File(jarPath);
+			if (file.exists()) {
+				try {
+					resolvedPath = Py.newString(file.getCanonicalPath()
+						+ schemeSpecificPart.substring(lastIndexOf + 1));
+				} catch (final IOException e) {
+					throw new RuntimeException(e);
+				}
+			}
+		} else if (pythonPath.getScheme().equals("file")) {
+			final File file = new File(pythonPath);
+			if (file.exists()) {
+				try {
+					resolvedPath = Py.newString(file.getCanonicalPath());
+				} catch (final IOException e) {
+					throw new RuntimeException(e);
+				}
+			}
+		}
+		return resolvedPath;
+	}
+
 }

src/main/java/net/abhinavsarkar/jywrapper/messages.properties

@@ -14,4 +14,4 @@ JyWrapper.12=Trying to get instance attribute "{0}" from a Python Type
 JyWrapper.13=Can''t set attribute: {0}
 JyWrapper.14=Trying to set instance attribute "{0}" in a python class
 JyWrapper.15=No {0} named "{1}" in the backing Python Type {2}
-PyImportLoader.1=Python Import "{0}" not found in pythonpath
+PyImportLoader.1=Python Import "{0}" not found in pythonpath {1}