Added comments

tools/python/CMakeLists.txt

@@ -3,6 +3,7 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 
 include(../../dlib/add_python_module)
 
+# Tell cmake to compile all these cpp files into a dlib python module.
 add_python_module(dlib 
    src/dlib.cpp 
    src/matrix.cpp 
@@ -16,4 +17,6 @@ add_python_module(dlib
    src/sequence_segmenter.cpp
    )
 
+# When you run "make install" we will copy the compiled dlib.so (or dlib.pyd) 
+# library file to the python_examples folder.
 install_dlib_to(../../python_examples)