#3: Karabo GUI Dependencies
===========================

Karabo GUI Dependencies - Plotting
**********************************

Major changes in the Karabo GUI have been performed in the last month. We introduced a new plotting library **PyQtGraph** to become the
driving plotting library and introduced several plotting widgets.
Regarding future steps we plan to remove the currently existing plotting library **Qwt** and make the GUI installation independent from the Framework using
**CONDA** (https://docs.conda.io/en/latest/). From **Karabo 2.7** onwards the Karabo GUI can only be installed via CONDA.
As an intermediate step we had to replace the C++ based library **PyQwt** with its pure python counterpart **PythonQwt**.
Unfortunately, this affects already existing installations and can raise a dependency conflict.
We updated our `documentation <https://rtd.xfel.eu/docs/karabo/en/latest/installation/gui.html>`_.

In order to remedy the dependency problem please ...

- Linux: Clean install your karabo installation, by removing the previously installed ``karabo`` folder if necessary.
- Windows: If applicable, perform a clean installation. Alternatively, please try the following lines using the python package installer::

   * pip install --upgrade guiqwt==3.0.3
   * pip uninstall PyQwt
   * pip install PythonQwt==0.5.5

We recommend using a **clean** installation.

Best wishes, the Karabo GUI Team