Index: src/org/python/core/imp.java
===================================================================
--- src/org/python/core/imp.java	(revision 5670)
+++ src/org/python/core/imp.java	Mon Dec 01 14:10:51 EST 2008
@@ -173,6 +173,11 @@
             Py.writeDebug(IMPORT_LOG, "Unable to write to source cache file '"
                     + compiledFilename + "' due to " + exc);
             return null;
+        } catch(SecurityException exc) {
+            // If we can't write the cache file, just log and continue
+            Py.writeDebug(IMPORT_LOG, "Unable to write to source cache file '"
+                    + compiledFilename + "' due to " + exc);
+            return null;
         } finally {
             if(fop != null) {
                 try {
@@ -440,8 +445,11 @@
         File sourceFile = new File(dir, sourceName);
         File compiledFile = new File(dir, compiledName);
 
-        boolean pkg = dir.isDirectory() && caseok(dir, name) && (sourceFile.isFile()
+        boolean pkg = false;
+        try {
+            pkg = dir.isDirectory() && caseok(dir, name) && (sourceFile.isFile()
                                                                  || compiledFile.isFile());
+        } catch (SecurityException e) {}
         if (!pkg) {
             Py.writeDebug(IMPORT_LOG, "trying source " + dir.getPath());
             sourceName = name + ".py";
@@ -456,29 +464,31 @@
             m.__dict__.__setitem__("__path__", new PyList(new PyObject[] {filename}));
         }
 
+        try {
-        if (sourceFile.isFile() && caseok(sourceFile, sourceName)) {
-            if (compiledFile.isFile() && caseok(compiledFile, compiledName)) {
-                Py.writeDebug(IMPORT_LOG, "trying precompiled " + compiledFile.getPath());
-                long pyTime = sourceFile.lastModified();
-                long classTime = compiledFile.lastModified();
-                if (classTime >= pyTime) {
-                    PyObject ret = createFromPyClass(modName, makeStream(compiledFile), true,
-                                                     displaySourceName, displayCompiledName);
-                    if (ret != null) {
-                        return ret;
-                    }
-                }
-            }
-            return createFromSource(modName, makeStream(sourceFile), displaySourceName,
-                                    compiledFile.getPath());
-        }
+            if (sourceFile.isFile() && caseok(sourceFile, sourceName)) {
+                if (compiledFile.isFile() && caseok(compiledFile, compiledName)) {
+                    Py.writeDebug(IMPORT_LOG, "trying precompiled " + compiledFile.getPath());
+                    long pyTime = sourceFile.lastModified();
+                    long classTime = compiledFile.lastModified();
+                    if (classTime >= pyTime) {
+                        PyObject ret = createFromPyClass(modName, makeStream(compiledFile), true,
+                                                         displaySourceName, displayCompiledName);
+                        if (ret != null) {
+                            return ret;
+                        }
+                    }
+                }
+                return createFromSource(modName, makeStream(sourceFile), displaySourceName,
+                                        compiledFile.getPath());
+            }
 
-        // If no source, try loading precompiled
-        Py.writeDebug(IMPORT_LOG, "trying precompiled with no source " + compiledFile.getPath());
-        if (compiledFile.isFile() && caseok(compiledFile, compiledName)) {
-            return createFromPyClass(modName, makeStream(compiledFile), true, displaySourceName,
-                                     displayCompiledName);
-        }
+            // If no source, try loading precompiled
+            Py.writeDebug(IMPORT_LOG, "trying precompiled with no source " + compiledFile.getPath());
+            if (compiledFile.isFile() && caseok(compiledFile, compiledName)) {
+                return createFromPyClass(modName, makeStream(compiledFile), true, displaySourceName,
+                                         displayCompiledName);
+            }
+        } catch (SecurityException e) {}
         return null;
     }
 
Index: src/org/python/core/PyTraceback.java
===================================================================
--- src/org/python/core/PyTraceback.java	(revision 5670)
+++ src/org/python/core/PyTraceback.java	Fri Nov 28 18:28:52 EST 2008
@@ -51,10 +51,14 @@
      */
     private String getLine(String filename, int lineno) {
         RelativeFile file = new RelativeFile(filename);
+        try {
-        if (!file.isFile() || !file.canRead()) {
-            // XXX: We should run through sys.path until the filename is found
-            return null;
-        }
+            if (!file.isFile() || !file.canRead()) {
+                // XXX: We should run through sys.path until the filename is found
+                return null;
+            }
+        } catch (SecurityException e) {
+            return null;  // If we don't have read access to the file, return null
+        }
 
         PyFile pyFile;
         try {
Index: src/org/python/core/packagecache/PathPackageManager.java
===================================================================
--- src/org/python/core/packagecache/PathPackageManager.java	(revision 5670)
+++ src/org/python/core/packagecache/PathPackageManager.java	Mon Dec 01 14:10:51 EST 2008
@@ -41,21 +41,23 @@
             String dir = path.pyget(i).__str__().toString();
 
             File f = new RelativeFile(dir, child);
+            try {
-            if (f.isDirectory() && imp.caseok(f, name)) {
-                /*
-                 * Figure out if we have a directory a mixture of python and
-                 * java or just an empty directory (which means Java) or a
-                 * directory with only Python source (which means Python).
-                 */
-                PackageExistsFileFilter m = new PackageExistsFileFilter();
-                f.listFiles(m);
-                boolean exists = m.packageExists();
-                if (exists) {
-                    Py.writeComment("import", "java package as '"
-                            + f.getAbsolutePath() + "'");
-                }
-                return exists;
-            }
+                if (f.isDirectory() && imp.caseok(f, name)) {
+                    /*
+                     * Figure out if we have a directory a mixture of python and
+                     * java or just an empty directory (which means Java) or a
+                     * directory with only Python source (which means Python).
+                     */
+                    PackageExistsFileFilter m = new PackageExistsFileFilter();
+                    f.listFiles(m);
+                    boolean exists = m.packageExists();
+                    if (exists) {
+                        Py.writeComment("import", "java package as '"
+                                + f.getAbsolutePath() + "'");
+                    }
+                    return exists;
+                }
+            } catch (SecurityException se) {}
         }
         return false;
     }
Index: src/org/python/modules/zipimport/zipimporter.java
===================================================================
--- src/org/python/modules/zipimport/zipimporter.java	(revision 5670)
+++ src/org/python/modules/zipimport/zipimporter.java	Mon Dec 01 14:13:28 EST 2008
@@ -115,10 +115,14 @@
         prefix = "";
         while (true) {
             File fullPathFile = new File(sys.getPath(pathFile.getPath()));
+            try {
-            if (fullPathFile.isFile()) {
-                archive = pathFile.getPath();
-                break;
-            }
+              if (fullPathFile.isFile()) {
+                  archive = pathFile.getPath();
+                  break;
+              }
+            } catch (SecurityException se) {
+              throw zipimport.ZipImportError("file not accessible");
+            }
 
             // back up one path element
             File parentFile = pathFile.getParentFile();
@@ -582,8 +586,8 @@
      * Convert the date/time values found in the Zip archive to a long
      * time (in milliseconds) value.
      *
-     * @param dostime a dos style timestamp (only time) integer
-     * @param dosdate a dos style date integer
+     * @param dosTime a dos style timestamp (only time) integer
+     * @param dosDate a dos style date integer
      * @return a long time (in milliseconds) value
      */
     private long dosTimeToEpoch(int dosTime, int dosDate) {
Index: src/org/python/core/SyspathJavaLoader.java
===================================================================
--- src/org/python/core/SyspathJavaLoader.java	(revision 5670)
+++ src/org/python/core/SyspathJavaLoader.java	Mon Dec 01 14:10:52 EST 2008
@@ -96,6 +96,7 @@
         try {
             return Class.forName(name, true, ClassLoader.getSystemClassLoader());
         } catch(ClassNotFoundException e) {}
+        catch (SecurityException se) {}
         
         Class c = findLoadedClass(name);
         if(c != null) {
@@ -124,14 +125,14 @@
                 String dir = entry.__str__().toString();
                 file = getFile(dir, name);
                 if(file != null) {
-                    size = (int)file.length();
                     try {
+                        size = (int)file.length();
                         fis = new FileInputStream(file);
                     } catch(FileNotFoundException e) {
                         ;
+                    } catch(SecurityException e) {}
-                    }
-                }
+                }
+            }
-            }
             if(fis == null) {
                 continue;
             }