两个集成套件，包括了科学计算用到的包
1、python(x,y) 一看名字就是用来做科学计算的 甚至将Eclipse 和qt都包括进来了
地址
http://code.google.com/p/pythonxy/
包括如下python组件
Python/xy/xydoc/PyQt/QtHelp/PyQwt/PyQwt3D/PyGTK/wxPython/NumPy/SciPy/numexpr/Matplotlib/PIL/IPython/Pyreadline/SetupTools/ETS/VTK/ITK/pydicom/VPython/PyOpenGL/OpenCV/SymPy/cvxopt/NetworkX/MDP/PyTables/h5py/ReportLab/pyExcelerator/GDAL/PP/Pywin32/pyvisa/PyParallel/PySerial/Cython/Pyrex/py2exe/Sphinx/docutils/jinja/docutils/pygments/docutils/Epydoc/nose/pylint/winpdb
2、EPD(Enthought Python Distribution) 没有集成开发环境 但常用的包都有 虽然不是免费版 不过下载时可以选择学术选项 和免费版没区别
地址
http://enthought.com/products/epd.php
组件列表
altgraph/argparse/basemap/CherryPy/cmake/configobj/coverage/Cython/docutils/Enstaller/EPD_Py25/epydoc/ETPCore/ETPLib/ETS/foolscap/fpconst/freetype/gadfly/Graphviz/grin/hdf4/hdf5/ipython/Jinja/lapack_lite/libpng/libxml2/libxslt/lxml/matplotlib/mingw/modulegraph/mpi4py/mpich2/MySQL-python/netcdf/networkx/nose/numarray/numpy/openssl/PIL/ply/portaudio/pyAudio/pycdf/pycrypto/pydot/pygarrayimage/pyglet/Pygments/pyhdf/PyOpenGL/pyOpenSSL/pyparsing/pyproj/Pyrex/pyserial/pysvn/pytables/python_dateutil/pytz/PyVISA/pywin32/PyXML/ReportLab/ScientificPython/scikits.rsformats/scipy/scite/scons/simplejson/soaplib/SOAPpy/Sphinx/SQLAlchemy/swig/sympy/testoob/Twisted/VTK/windows_extras/wxPython/ZConfig/zdaemon/zlib/ZODB3/zope.interface/zope.proxy/zope.testing
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ide：
1、wing ide
2、eclipse
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A、查看python path：
import sys
sys.path或：for line in sys.path: print line
mac上安装python和扩展包
先说几个工具
1、Macports：mac上的安装管理软件的工具，类似linux上的apt-get和yum
sudo port install ***
port search *** 很好用
2、easy-install ：python扩展包管理工具，可以很容易的安装需要的包
http://www.yancong.su/2012/08/208
通过MacPorts添加Python, NumPy, SciPy, PyLab 很容易就安装上了
一、使用Macports
sudo port install py27-numpy
sudo port install py27-scipy
sudo port install py27-matplotlib
NumPy is installed in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/numpy
测试Pylab：
python
import pylab
pylab.plot([1,2,3,4])
pylab.show()
或这样测试：