diff --git a/src/PyXRootDCopyProcess.cc b/src/PyXRootDCopyProcess.cc
index df0223ac9e6..442d88dff2a 100755
--- a/src/PyXRootDCopyProcess.cc
+++ b/src/PyXRootDCopyProcess.cc
@@ -21,6 +21,9 @@
 
 namespace PyXRootD
 {
+  //----------------------------------------------------------------------------
+  // Add a job to the copy process
+  //----------------------------------------------------------------------------
   PyObject* CopyProcess::AddJob( CopyProcess *self, PyObject *args, PyObject *kwds )
   {
     static char *kwlist[]  = { "source", "target", "sourcelimit", "force",
@@ -56,12 +59,18 @@ namespace PyXRootD
     Py_RETURN_NONE;
   }
 
+  //----------------------------------------------------------------------------
+  // Prepare the copy jobs
+  //----------------------------------------------------------------------------
   PyObject* CopyProcess::Prepare( CopyProcess *self, PyObject *args, PyObject *kwds )
   {
     XrdCl::XRootDStatus status = self->process->Prepare();
     return ConvertType<XrdCl::XRootDStatus>( &status );
   }
 
+  //----------------------------------------------------------------------------
+  // Run the copy jobs
+  //----------------------------------------------------------------------------
   PyObject* CopyProcess::Run( CopyProcess *self, PyObject *args, PyObject *kwds )
   {
     XrdCl::CopyProgressHandler *handler = new PyCopyProgressHandler();
diff --git a/src/PyXRootDCopyProcess.hh b/src/PyXRootDCopyProcess.hh
index 297357af471..ddd3cd9abf9 100755
--- a/src/PyXRootDCopyProcess.hh
+++ b/src/PyXRootDCopyProcess.hh
@@ -26,18 +26,33 @@
 
 namespace PyXRootD
 {
+  //----------------------------------------------------------------------------
+  //! Interface for copy progress notification (not really used here)
+  //----------------------------------------------------------------------------
   class PyCopyProgressHandler : public XrdCl::CopyProgressHandler
   {
     public:
+      //------------------------------------------------------------------------
+      //! Notify when a new job is about to start
+      //------------------------------------------------------------------------
       void BeginJob( uint16_t jobNum, uint16_t jobTotal,
           const XrdCl::URL *source, const XrdCl::URL *destination ) {}
 
+      //------------------------------------------------------------------------
+      //! Notify when the previous job has finished
+      //------------------------------------------------------------------------
       void EndJob( const XrdCl::XRootDStatus &status ) {}
 
+      //------------------------------------------------------------------------
+      //! Notify about the progress of the current job
+      //------------------------------------------------------------------------
       void JobProgress( uint64_t bytesProcessed, uint64_t bytesTotal ) {}
 
   };
 
+  //----------------------------------------------------------------------------
+  //! Copy the data from one point to another
+  //----------------------------------------------------------------------------
   class CopyProcess
   {
     public:
@@ -53,7 +68,7 @@ namespace PyXRootD
   PyDoc_STRVAR(copyprocess_type_doc, "CopyProcess object (internal)");
 
   //----------------------------------------------------------------------------
-  //! __init__() equivalent
+  //! __init__()
   //----------------------------------------------------------------------------
   static int CopyProcess_init( CopyProcess *self, PyObject *args )
   {