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.. index:: module


.. _ap-cat-module-0:

module - 1/7
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.. blogpostagg::
    :title: opencv, cannot find DLL
    :date: 2018-07-29
    :keywords: opencv
    :categories: module
    :rawfile: 2018/2018-07-29_opencv.rst

    I recently faced an issue with
    `opencv-python <http://opencv-python-tutroals.readthedocs.io/en/latest/>`_ and
    :epkg:`python` 3.7:
    ``import cv2`` returned the following error:
    

    ...




.. blogpostagg::
    :title: pyecharts + echarts
    :date: 2018-07-05
    :keywords: pyecharts
    :categories: module
    :rawfile: 2018/2018-07-05_pyecharts.rst

    `pyecharts <https://github.com/pyecharts/pyecharts>`_ is a wrapper
    around `echarts <https://ecomfe.github.io/>`_,
    a library developped by
    `Baidu <https://www.baidu.com/>`_.
    Most of the documentation is in Chinese so it handles
    every language.
    Check the `gallery <https://ecomfe.github.io/echarts-examples/public/index.html#chart-type-graph>`_,
    it is quite impressive. One example about is graph shows relationships
    in `Les Miserables <https://ecomfe.github.io/echarts-examples/public/editor.html?c=graph>`_.
    The Python wrapper used som technics such as modules
    to automatically converts python code
    into javascript: `javascripthon <https://github.com/metapensiero/metapensiero.pj>`_.
    I recommend reading the associated paper
    `ECharts: A declarative framework for rapid construction of web-based visualizatio <https://www.sciencedirect.com/science/article/pii/S2468502X18300068>`_
    which mentions many existing libraries and explain their technical choice
    like not using SVG to increase performance
    (so no depndency on `d3.js <https://d3js.org/>`_).




.. blogpostagg::
    :title: Build pythonnet
    :date: 2018-05-20
    :keywords: pythonnet
    :categories: module
    :rawfile: 2018/2018-05-20_pythonnet.rst

    Building `pythonnet <https://github.com/pythonnet/pythonnet>`_
    on CircleCI was quite interesting.
    You can check the outcome on
    `sdpython/pythonnet <https://github.com/sdpython/pythonnet/tree/master>`_
    and get artifacts at
    `CircleCI/sdpython <https://circleci.com/gh/sdpython/pythonnet/tree/master>`_.
    The instructions are described in
    `.circleci/config.yml <https://github.com/sdpython/pythonnet/blob/master/.circleci/config.yml>`_.




.. blogpostagg::
    :title: Build onnx for Windows
    :date: 2018-04-16
    :keywords: onnx
    :categories: module
    :rawfile: 2018/2018-04-16_onnx.rst

    `onnx <https://github.com/onnx/onnx>`_ is not
    necessarily up to date on
    `PyPI <https://pypi.python.org/pypi/onnx/>`_.
    To get the latest version, the simplest is to clone
    the project on github and set up a build like this one
    on `appveyor <https://ci.appveyor.com/project/sdpython/onnx>`_.
    But before that, you need to mofiy file ``appveyor.yml``
    and a section for artifacts:
    

    ...




.. blogpostagg::
    :title: m2r as a replacement of recommonmark
    :date: 2018-03-01
    :keywords: m2r,recommonmark
    :categories: module
    :rawfile: 2018/2018-03-01_m2r.rst

    `recommonmark <https://pypi.python.org/pypi/recommonmark>`_ was not recently
    updated and fails with the latest version
    of :epkg:`Sphinx` (1.7.1). See
    `'Values' object has no attribute 'pep_references' missing with 1.7.0b1 <https://github.com/sphinx-doc/sphinx/issues/4493>`_.
    You should use `m2r <https://pypi.python.org/pypi/m2r>`_.




.. blogpostagg::
    :title: Install spacy on Windows
    :date: 2018-02-21
    :keywords: Windows,cvxopt
    :categories: module
    :rawfile: 2018/2018-02-21_spacy.rst

    It is not difficult to install
    `spacy <https://spacy.io/>`_
    on Windows. The site
    `Unofficial Windows Binaries for Python Extension Packages <https://www.lfd.uci.edu/~gohlke/pythonlibs/>`_
    hosted a compiled version.
    But I tried:
    

    ...




.. blogpostagg::
    :title: Build cvxopt on Windows, cvxopt 1.1.9 not compatible with numpy 1.14
    :date: 2018-01-17
    :keywords: Windows,cvxopt
    :categories: module
    :rawfile: 2018/2018-01-17_cvxopt.rst

    I recently started to have an issue with
    :epkg:`cvxopt`.
    

    ...




.. blogpostagg::
    :title: ete3 and PyQt5
    :date: 2017-11-11
    :keywords: ete3,pyqt5
    :categories: module
    :rawfile: 2017/2017-11-11_ete3.rst

    `ete3 <https://github.com/etetoolkit/ete>`_ now works with
    `PyQt5 <https://pypi.python.org/pypi/PyQt5>`_ due to
    the pull request `#284 <https://github.com/etetoolkit/ete/pull/284>`_.




.. blogpostagg::
    :title: Install pytorch on Windows
    :date: 2017-11-08
    :keywords: torch
    :categories: module
    :rawfile: 2017/2017-11-08_torch_windows.rst

    You can go there
    `peterjc123/pytorch <https://anaconda.org/peterjc123/pytorch/files>`_
    or type ``conda install -c peterjc123 pytorch``.
    the setup can be created after unzipping the sources
    and running example
    :ref:`Create a setup from installed packages <ex-torch-setup>`.




.. blogpostagg::
    :title: A few interesting modules
    :date: 2017-11-04
    :keywords: scapy
    :categories: module
    :rawfile: 2017/2017-11-04_modules.rst

    * `GPAW <https://gitlab.com/gpaw/gpaw>`_ :
      GPAW is a density-functional theory (DFT) Python code based on the
      projector-augmented wave (PAW) method and the atomic simulation environment
      (ASE). It uses plane-waves, atom-centered basis-functions or real-space
      uniform grids combined with multigrid methods.
    * `mypy <http://mypy-lang.org/>`_ : an experimental optional
      static type checker for Python that aims to combine the benefits
      of dynamic (or "duck") typing and static typing.
    * `scapy <http://scapy.readthedocs.io/en/latest/index.html>`_ :
      networks, IP, protocols
    * `sympy-live <https://github.com/sympy/sympy-live>`_ :
      web server to run custom examples
    * `wooey <https://github.com/wooey/wooey>`_ :
      website to execute :epkg:`python` script
    * `zc.async <https://github.com/zopefoundation/zc.async>`_ :
      processus synchronization
    * `zentyal <https://github.com/zentyal/zentyal>`_ :
      small business server, includes mails





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