*tutorial code fix

eclipsecon08/org.eclipse.dltk.examples.python/src/org/eclipse/dltk/examples/internal/python/core/ExamplePythonContentDescriber.java

diff --git a/eclipsecon08/org.eclipse.dltk.examples.python/src/org/eclipse/dltk/examples/internal/python/core/ExamplePythonContentDescriber.java b/eclipsecon08/org.eclipse.dltk.examples.python/src/org/eclipse/dltk/examples/internal/python/core/ExamplePythonContentDescriber.java
index 98ac333..fe22d01 100644
--- a/eclipsecon08/org.eclipse.dltk.examples.python/src/org/eclipse/dltk/examples/internal/python/core/ExamplePythonContentDescriber.java
+++ b/eclipsecon08/org.eclipse.dltk.examples.python/src/org/eclipse/dltk/examples/internal/python/core/ExamplePythonContentDescriber.java
@@ -1,8 +1,7 @@
 package org.eclipse.dltk.examples.internal.python.core;
-import java.io.IOException;
-import java.io.Reader;
 
-import org.eclipse.core.runtime.content.IContentDescription;
+import java.util.regex.Pattern;
+
 import org.eclipse.dltk.core.ScriptContentDescriber;
 
 public class ExamplePythonContentDescriber extends ScriptContentDescriber {
@@ -10,12 +9,10 @@
 	public ExamplePythonContentDescriber() {
 	}
 
-	/**
-	 * This method could be extended to use pattern matching for files without
-	 * extension.
-	 */
-	public int describe(Reader contents, IContentDescription description)
-			throws IOException {
-		return ScriptContentDescriber.INDETERMINATE;
+	protected static Pattern[] header_patterns = { Pattern.compile(
+			"^#!.*python.*", Pattern.MULTILINE) }; //$NON-NLS-1$
+
+	protected Pattern[] getHeaderPatterns() {
+		return header_patterns;
 	}
 }