
Python
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pyqt
Zope/Plone
These Python conferences bring together developers, application designers and business people in the international Python communities. You will meet people who have just begun their journey into this world, as well as the people who started it all.
PyCon Home Page
SciPy Scientific Tools for Python - SciPy - Scientific tools for
SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science, and engineering. It is also the name of a very popular conference on scientific programming with Python. The SciPy library depends on NumPy , which provides convenient and fast N-dimensional array manipulation.Scientific
ERP5 is a full featured high end Open Source / Libre Software solution published under GPL license and used for mission critical ERP / CRM / MRP / SCM / PDM applications by industrial organisations and government agencies.
ERP5 Community - Industrial Grade Open Source / Libre Software E
FiPy
pydap — Data Access Protocol meets Python
PyGTK
PyGTK lets you to easily create programs with a graphical user interface using the Python programming language.Articles
Second release candidates for Python 2.6.8, 2.7.3, 3.1.5, and 3.2.3 released Another iteration of release candidates for Python 2.6.8 , 2.7.3 , 3.1.5 , and 3.2.3 have been released for testing.
Python Programming Language -- Official Website
PyEphem
pyChing - Screenshots
SymPy is an open source Python library for symbolic mathematics. It aims to become a full-featured computer algebra system (CAS) while keeping the code as simple as possible in order to be comprehensible and easily extensible. SymPy is written entirely in Python and does not require any external libraries.

