http://blogs.esri.com/Dev/blogs/geoprocessing/archive/tags/ArcGIS+9.3.1/default.aspxTags: ArcGIS 9.3.1enCommunityServer 2.1 SP2 (Debug Build: 61120.2)http://blogs.esri.com/Dev/blogs/geoprocessing/archive/2009/05/12/Using-Python-2.5.4-with-ArcGIS-9.3.1.aspxTue, 12 May 2009 14:44:00 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:5839bbicking15http://blogs.esri.com/Dev/blogs/geoprocessing/comments/5839.aspxhttp://blogs.esri.com/Dev/blogs/geoprocessing/commentrss.aspx?PostID=5839<P><EM>This blog post was written by David Wynne, Product Engineer on the Geoprocessing Team in ESRI’s Software Products group in Redlands.<BR></EM></P> <P>The Python Community announced the release of Python 2.5.4 late in December of 2008. Python 2.5.4 is a bug fixes release.</P> <P>While ArcGIS 9.3.1 was shipped with Python 2.5.1, Python 2.5.4 has now been certified and is supported. In limited testing with ArcGIS 9.3, no issues were encountered. &nbsp;To take advantage of fixes in Python 2.5.4, it can simply be installed on top of Python 2.5.1. That means, it is not necessary to uninstall Python 2.5.1 first.<STRONG>*</STRONG>&nbsp; </P> <P>To&nbsp;see and to download the release notes go <A class="" title=here href="http://www.python.org/download/releases/2.5.4/" target=_blank>here</A>.</P> <P><STRONG>*</STRONG> If you uninstalled Python 2.5.1 and you work with the Spatial Statistics geoprocessing tools, you <STRONG>must</STRONG> reinstall Numerical Python (NumPy) from the ArcGIS installation DVDs.</P> <P>For more information, see FAQ: <A class="" title="Can Python 2.5.4 be used with ArcGIS?" href="http://support.esri.com/index.cfm?fa=knowledgebase.techArticles.articleShow&amp;d=36554" target=_blank>Can Python 2.5.4 be used with ArcGIS?</A></P><img src="http://blogs.esri.com/Dev/aggbug.aspx?PostID=5839" width="1" height="1">ArcGIS 9.3.1Python 2.5.4