All python 2 specific files now work in python 3, so move
them to the common web/Python module and remove the Python2 module.

Also fix a few uses of .has_key(), which has been
removed in python 3.

Changes include fixing xrange, and str type differences,
including required types for autobahn and twisted.

Kunda authored 8 years ago and Cory Quammen committed 8 years ago

doxy and misc. typos pt2

This is similar to what is already done in ITK and SimpleITK.

The new vtkTargetLinkLibrariesWithDynamicLookup.cmake file is slightly modified copy from
ITK/CMake/itkTargetLinkLibrariesWithDynamicLookup.cmake
The explanation of what this patch tries to achieve is documented in this file.

A new argument is introduced, called OPTIONAL_PYTHON_LINK.
When used, the module will be optionally be linked against libpython.
In the module.cmake files, most vtkPython dependencies were moved to COMPILE_DEPENDS, so that libpython is not added to the target_link_libraries() call.

The vtkPython is explicitely linked against the python libraries, as this is a python executable.

Also, the find_package calls for the PythonLibs were made optional when possible.

The XDMF3 project was not updated, this will need to be done separately if weak linking is wished for that project.

Fixes: #16068

Prevent error when reseting the active view of the image stream
specially when no client has connected yet or requested the active view.

The current dependency relationship in vtk is unclear and misleading.
This MR tries to rewrite them based on header files inclusion of headers
and source files in each module. Corner cases are considered and
modules are sorted in alphabetical order to facilitate future reference.
See details in my gitlab python based script project. In future we can continue
using this script to clean the VTK Dependency easily from
time to time.

Replace render loop on the server side by a PushRender event when data has changed in the scene which reduce the amount of images sent.

The Python modules should hide this factor. Instead, try to import it
from the top-level package to support ParaView.

The module lives under the `vtk` module, so import it from there. The
new ParaView packages do not add `vtk` to `sys.path` (which is how this
worked before).

This reverts commit 772cc086.

Needs more work to build with VTK_KITS_ENABLED and to build
with ParaView.

This is similar to what is already done in ITK and SimpleITK.

The new vtkTargetLinkLibrariesWithDynamicLookup.cmake file is slightly modified copy from ITK (things have been renamed from ITK to VTK). The explanation of what this patch tries to achieve is documented in this file.

A new argument is introduced, called OPTIONAL_PYTHON_LINK. When used, the module will be optionally be linked against libpython. In the module.cmake files, most vtkPython dependencies were moved to COMPILE_DEPENDS, so that libpython is not added to the target_link_libraries() call.

The vtkPython is explicitely linked against the python libraries, as this is a python executable.

Also, the find_package calls for the PythonLibs were made optional when possible.

This fixes the following bug: http://www.vtk.org/Bug/view.php?id=16068

When the client disconnects from the vtkweb session, it is setting one
of its members to a list rather than a dict.  All the other uses of this
member assume a dict and this causes AttributeErrors on reconnection
when the list is used.

Kitware Robot authored 9 years ago and Dan Lipsa committed 9 years ago

Code extracted from:

    https://gitlab.kitware.com/third-party/proj.git

at commit 41bdf05361007f8c5186f3df9944d86bb273ed13 (for/vtk).

Due to the way SetSize(...) is implement on the render window
it return before confirming that the window has resized. In which
can we can receive an image of the previous size. So if the returned
image isn't the correct size, try again.

In environments where Python 2.6 is still in use, there is no
argparse module included by default.  For these situations, we
have included our own copy, called _argparse.py, which we usually
import in the except block in case the default is not present.  At
some point, the vtk.web package included this file, but at some
point it was removed and because few sites still use Python 2.6,
it was not caught.

This fix puts the _argparse.py in a single location (except for
where it is needed at build time).  This location is vtk.util,
and everything now looks there in the fallback case.

Change-Id: Id64241ffbe4e3cec7e96dae386da1a6385c5f6ed

Change-Id: I444e8a804bb93e77d67b8e9baf204bbd0766a10f

the ready_line from the launched application is sent through
stdout which can be arbitrarily buffered in a pipe. the vtkpython
interpreter overrides sys.stdout (and others) and did not implement
flush. This patch implements flush and uses it to flush the ready_line
rather then send a bunch of data to the stream and hope that it is
enough to flush the buffer.

Change-Id: I6342e1becd459b02391e7a7998181a83c44ffff1

Change-Id: I5b16d33b81e22e3b2d870fe336d8c037eb836252

Change-Id: Ida8ae7b362582a216b47131d95d8a9f66f21900b

Change-Id: Id3de83859ca29a6e6e72745908a3633593263a49

the launched app signals he is ready to receive incoming http reqs
by writing a "ready_line" into the log. the launcher reads the log
scanning for this ready line. Buffering can prevent this from
happening so trun off buffering on the log file.

Change-Id: I26ede8d7e1518f9ed9c90bf836fdf1596e05fae1

If the python process started by the launcher fails to startup
within the timeout perform the necessary cleanup.

Change-Id: If1c77abb89a47fbe6fb4d22c02cb7396f6043d7a

Use unbuffered reads/writes when accessing the stdout file for
Python processes started by launcher. This ensures that the
"ready line" will appear in the file as soon as the process writes
it.

Change-Id: I58286236b9d5bbe781cc969a0e432ccdd091d47a

Change-Id: I437de6daed8b9a467d101abdace5ba9fe9f2ac0f