Django "SMTPServerDisconnected Connection unexpectedly closed"

1. Check mail server by "telnet servername port(25)"
2. Check IMAP server (e.g. deovecot)

How To Install Python JCC

Ubuntu 8.04 Server

• sudo install  sun-java6-jdk python-distutils-extra build-essential
• svn co http://svn.apache.org/repos/asf/lucene/pylucene/trunk/jcc jcc (revision 1090549)
• cd jcc/jcc
• sudo python setup.py build install

Windows

• require Python2.5.2, Visual Studio 2003, Java-JDK1.6.0u17
• add Path
• C:\Program Files\Java\jdk1.6.0_17\bin
• C:\Program Files\Java\jdk1.6.0_17\lib
• C:\Program Files\Java\jdk1.6.0_17\jre\bin\client
• C:\Python25
• checkout jcc from subversion http://svn.apache.org/repos/asf/lucene/pylucene/trunk/jcc (revision 1090549)
• open command prompt
• in jcc directory >>> python setup.py build install

SQL History in Django

Use django.db.connection to get SQL history.
Example:
from django.db import connection
connection.queries

How to set font properties in matplotlib create graph

1. Create font dict like this
- font = { 'fontname':'Tahoma', 'fontsize':16 }
2. When you want to change font for example in title use like this
- matplotlib.pylab.title(u'some text', **font)

Problem BIGINT in Jython

You must convert Python Long object to Java Long object before execute sql command.

Example: id = Long(data[0])
difficulty = utils.calc_sentence_diff(data[1])
cursor.execute(update_sql, (difficulty, id))