[Python] Don't include JsMVA in builds

The JsMVA package is undocumented, untested, and lagging behind in terms
of the JsROOT version that it uses.

At this point, there is no clear reason for including it in the ROOT
builds, so this commit suggests to remove it from the build and install
tree temporarily, until we are sure that it works (also with the newest
JsROOT version).

Author: guitargeek

CMakeLists.txt

@@ -345,6 +345,9 @@ file(GLOB_RECURSE artifact_files RELATIVE ${CMAKE_SOURCE_DIR} etc/*)
 # Exclude the *.in files, just like in the install tree
 list(FILTER artifact_files EXCLUDE REGEX "\.(in)$")
 
+# Exclude etc/notebook/JsMVA
+list(FILTER artifact_files EXCLUDE REGEX "^etc/notebook/JsMVA/")
+
 foreach(artifact_file ${artifact_files})
   add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${artifact_file}
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_SOURCE_DIR}/${artifact_file} ${CMAKE_BINARY_DIR}/${artifact_file}
@@ -625,6 +628,7 @@ if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_INSTALL_PREFIX)
   endif()
   install(DIRECTORY etc/ DESTINATION ${CMAKE_INSTALL_SYSCONFDIR} USE_SOURCE_PERMISSIONS
                          ${DIR_PERMISSIONS}
+                         PATTERN "notebook/JsMVA" EXCLUDE
                          PATTERN "system.rootrc" EXCLUDE
                          PATTERN "system.rootauthrc" EXCLUDE
                          PATTERN "system.rootdaemonrc" EXCLUDE

bindings/pyroot/pythonizations/CMakeLists.txt

@@ -71,12 +71,12 @@ list(APPEND PYROOT_EXTRA_HEADERS
      inc/TPyDispatcher.h)
 
 set(py_sources
-  ROOT/JsMVA/DataLoader.py
-  ROOT/JsMVA/Factory.py
-  ROOT/JsMVA/JPyInterface.py
-  ROOT/JsMVA/JsMVAMagic.py
-  ROOT/JsMVA/OutputTransformer.py
-  ROOT/JsMVA/__init__.py
+  #ROOT/JsMVA/DataLoader.py
+  #ROOT/JsMVA/Factory.py
+  #ROOT/JsMVA/JPyInterface.py
+  #ROOT/JsMVA/JsMVAMagic.py
+  #ROOT/JsMVA/OutputTransformer.py
+  #ROOT/JsMVA/__init__.py
   ROOT/_application.py
   ROOT/_asan.py
   ROOT/_facade.py

bindings/pyroot/pythonizations/python/ROOT/__init__.py

@@ -180,7 +180,7 @@ def find_spec(self, fullname: str, path, target=None) -> ModuleSpec:
     ip = get_ipython()
     if hasattr(ip, "kernel"):
         import JupyROOT
-        from . import JsMVA
+        # from . import JsMVA
 
 # Register cleanup
 import atexit