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Python bindings for ENVISAT Product Reader API
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ENVISAT Product Reader Python API

Author: Antonio Valentino
Copyright: 2011-2018, Antonio Valentino <>
Version: 0.9.6


PyEPR provides Python bindings for the ENVISAT Product Reader C API (EPR API) for reading satellite data from ENVISAT ESA (European Space Agency) mission.

PyEPR, as well as the EPR API for C, supports ENVISAT MERIS, AATSR Level 1B and Level 2 and also ASAR data products. It provides access to the data either on a geophysical (decoded, ready-to-use pixel samples) or on a raw data layer. The raw data access makes it possible to read any data field contained in a product file.


In order to use PyEPR it is needed that the following software are correctly installed and configured:

  • Python2 >= 2.6 or Python3 >= 3.1 (including PyPy)
  • numpy >= 1.5.0
  • EPR API >= 2.2 (optional, since PyEPR 0.7 the source tar-ball comes with a copy of the PER C API sources)
  • a reasonably updated C compiler (build only)
  • Cython >= 0.15 (build only)
  • unittest2 (only required for Python < 3.4)


Official source tarballs can be downloaded form PyPi:

The source code of the development versions is available on the GitHub project page

To clone the git repository the following command can be used:

$ git clone


The easier way to install PyEPR is using tools like pip or easy_install:

$ pip install pyepr


$ pip install -U --prefix=<TARGET DIRECTORY>

PyEPR can be installed from the source tar-ball using the following command:

$ python install

To install PyEPR in a non-standard path:

$ python install --prefix=<TARGET_PATH>


Copyright (C) 2011-2018 Antonio Valentino <>

PyEPR is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

PyEPR is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with PyEPR. If not, see <>.

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