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# Change history

## PyEPR 0.8.1 (07/09/2013)

- fixed an important bug in the error checking code introduced in previous release (closes gh-8)
- fixed the NDVI example
- no more display link URL in footnotes of the PDF User Manual

## PyEPR 0.8 (07/09/2013)

- now the `epr.Product` objects have a `epr.Product.close()` method that can be used to explicitly close products without relying on the garbage collector behaviour (closes gh-7)
- new `epr.Product.closed` (read-only) attribute that can be used to check if a `epr.Product` has been closed
- the `Product` class now supports context management so they can be used in `with` statements
- added entries for `epr.__version__` and `epr.__revision__` in the reference manual
- the `epr.__revision__` module attribute is now deprecated
- some cythonization warnings have been fixed
- several small improvements to the documentation

## PyEPR 0.7.1 (19/08/2013)

- fixed potential issues with conversion from python strings to `char*`
- new snapshot of the EPR C API sources (2.3dev):
  - the size of the record tables has been fixed
  - the EPR_NUM_PRODUCT_TABLES has been fixed
  - fixed a missing prototype
  - several GCC warnings has been silenced
  - additional checks on return codes
  - now and error is raised when an invalid flag name is used
- better factorization of Python 3 specific code
- use the CLOUD flag instead of BRIGHT in unit tests
- added function/method signature to all doc-strings for better interactive help
- several improvements to the documentation:
  - updated the `README.txt` file to mention EPR C API sourced inclusion in the PyEPR 0.7 (and lates) source tar-ball
  - small fix in the installation instructions: the pip tool does not have a “–prefix” parameter
  - always use the python3 syntax for the print function in all examples in the documentation
  - links to older (and dev) versions of the documentation have been added in the man page of the HTML doc
  - removed date form the doc meta-data. The documentation build date is reported in the front page of the LaTeX (PDF) doc and, starting from this release, in the footer of the HTML doc.
  - the Ohloh widget has been added in the sidebar of the HTML doc
  - improved the regexp for detecting the SW version in the :file`setup.py` script
  - formatting

## PyEPR 0.7 (04/08/2013)

- more detailed error messages in case of open failures

- new sphinx theme for the HTML documentation

- Travis-CI has been set-up for the project

- now the source tar-ball also includes a copy of the EPR C API sources so that no external C library is required to build PyEPR.

  This features also makes it easier to install PyEPR using pip.

  The user can still guild PyEPR against a system version of the ERP-API library simply using the --epr-api-src option of the `setup.py` script with “None”” as value.

  The ERP C API included in the source tar-ball is version 2.3dev-pyepr062, a development and patched version that allows the following enhancements.

  - support for ERS products in ENVISAT format
  - support for ASAR products generated with the new ASAR SW version 6.02 (ref. doc. PO-RS-MDA-GS-2009_4/C
  - fix incorrect reading of “incident_angle” bands (closes gh-6). The issue is in the EPR C API.

## PyEPR 0.6.1 (26/04/2012)

- fix compatibility with cython 0.16
- added a new option to the setup script (--epr-api-src) to build PyEPR using the EPR-API C sources

## PyEPR 0.6 (12/08/2011)

- full support for Python 3
- improved code highligh in the documentation
- depend from cython >= 0.13 instead of cython >= 0.14.1. Cythonizing `epr.pyx` with Python 3 requires cython >= 0.15

## PyEPR 0.5 (25/04/2011)

- stop using `PyFile_AsFile()` that is no more available in Python 3
- now documentation uses intersphinx capabilities
- code examples added to documentation
- tutorials added to documentation
- the LICENSE.txt file is now included in the source distribution
- the cython construct `with nogil` is now used instead of calling `Py_BEGIN_ALLOW_THREADS()` and `Py_END_ALLOW_THREADS()` directly
- dropped old versions of cython; now cython 0.14.1 or newer is required
- suppressed several constness related warnings

## PyEPR 0.4 (10/04/2011)

- fixed a bug in the `epr.Product.__str__()`, `Dataset.__str__()` and `erp.Band.__repr__()` methods (bad formatting)
- fixed `epr.Field.get_elems()` method for char and uchar data types
- implemented `epr.Product.read_bitmask_raster()`, now the `epr.Product` API is complete
- fixed segfault in `epr.Field.get_unit()` method when the field has no unit
- a smaller dataset is now used for unit tests
- a new tutorial section has been added to the user documentation

## PyEPR 0.3 (01/04/2011)

- version string of the EPR C API is now exposed as module attribute `epr.EPR_C_API_VERSION`
- implemented `__repr__`, `__str__`, `__eq__`, `__ne__` and `__iter__` special methods
- added utility methods (not included in the C API) like:
  - `epr.Record.get_field_names()`
  - `epr.Record.fields()`
  - `epr.Dataset.records()`
  - `epr.Product.get_dataset_names()`
  - `epr.Product.get_band_names()`
  - `epr.Product.datasets()`
  - `epr.Product.bands()`
- fixed a logic error that caused empty messages in custom EPR exceptions

## PyEPR 0.2 (20/03/2011)

- sphinx documentation added
- added docstrings to all method and classes
- renamed some method and parameter in order to avoid redundancies and have a more pythonic API
- in case of null pointers a `epr.EPRValueError` is raised
- improved C library shutdown management
- introduced some utility methods to `epr.Product` and `epr.Record` classes

## PyEPR 0.1 (09/03/2011)

Initial release

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