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.
$ pip install pyepr
Antonio Valentino (antonio.valentino at tiscali.it)
You can also clone the project with Git by running:
$ git clone git://github.com/avalentino/pyepr