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PythonQwt: Qt plotting widgets for Python

The PythonQwt project was initiated to solve -at least temporarily- the obsolescence issue of PyQwt (the Python-Qwt C++ bindings library) which is no longer maintained. The idea was to translate the original Qwt C++ code to Python and then to optimize some parts of the code by writing new modules based on NumPy and other libraries.

The PythonQwt package consists of a single Python package named qwt and of a few other files (examples, doc, ...).

See documentation for more details on the library and changelog for recent history of changes.

Copyrights

Main code base

  • Copyright © 2002 Uwe Rathmann, for the original Qwt C++ code
  • Copyright © 2015 Pierre Raybaut, for the Qwt C++ to Python translation and optimization
  • Copyright © 2015 Pierre Raybaut, for the PythonQwt specific and exclusive Python material

PyQt, PySide and Python2/Python3 compatibility modules

  • Copyright © 2009-2013 Pierre Raybaut
  • Copyright © 2013-2015 The Spyder Development Team

Some examples

  • Copyright © 2003-2009 Gerard Vermeulen, for the original PyQwt code
  • Copyright © 2015 Pierre Raybaut, for the PyQt5/PySide port and further developments (e.g. ported to PythonQwt API)

License

The qwt Python package was partly (>95%) translated from Qwt C++ library: the associated code is distributed under the terms of the LGPL license. The rest of the code was either wrote from scratch or strongly inspired from MIT licensed third-party software.

See included LICENSE file for more details about licensing terms.

Overview

The qwt package is a pure Python implementation of Qwt C++ library with the following limitations.

The following Qwt classes won't be reimplemented in qwt because more powerful features already exist in guiqwt: QwtPlotZoomer, QwtCounter, QwtEventPattern, QwtPicker, QwtPlotPicker.

Only the following plot items are currently implemented in qwt (the only plot items needed by guiqwt): QwtPlotItem (base class), QwtPlotItem, QwtPlotMarker, QwtPlotSeriesItem and QwtPlotCurve.

See "Overview" section in documentation for more details on API limitations when comparing to Qwt.

Dependencies

Requirements

  • Python >=2.6 or Python >=3.2
  • PyQt4 >=4.4 or PyQt5 >= 5.5
  • NumPy >= 1.5
  • guidata >= 1.7 for the GUI-based test launcher

Installation

From the source package:

python setup.py install

Examples/tests

The GUI-based test launcher may be executed from Python:

from qwt import tests
tests.run()

or from the command line:

PythonQwt-tests