Installing Buildbot

BuildBot is a system to automate the compile/test cycle required by most software projects to validate code changes.

Here is my environment.

$ uname -a
Linux app.example.com 2.6.18-53.el5 #1 SMP Mon Nov 12 02:14:55 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
$ python
Python 2.4.3 (#1, May 24 2008, 13:57:05)

Here is what I did to get it installed successfully.

CentOS

$ yum install python-devel
$ yum install zope

Ubuntu

$ apt-get install python-dev
$ apt-get install python-zopeinterface
$ cd /tmp
# installation of Twisted
$ wget http://tmrc.mit.edu/mirror/twisted/Twisted/8.1/Twisted-8.1.0.tar.bz2
$ bunzip2 Twisted-8.1.0.tar.bz2
$ tar xvf Twisted-8.1.0.tar
$ cd Twisted-8.1.0
$ sudo python setup.py install
# installation of BuildBot
$ cd /tmp
$ wget http://downloads.sourceforge.net/buildbot/buildbot-0.7.8.tar.gz
$ tar xvfz buildbot-0.7.8.tar.gz
$ cd buildbot-0.7.8
$ sudo python setup.py install


And a confirmation.
$ buildbot --version
Buildbot version: 0.7.8
Twisted version: 8.1.0

You will notice a few dependencies. I found these out from the following errors.

Error causing needing python-devel

$ python setup.py install
....
gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtun
e=generic -D_GNU_SOURCE -fPIC -fPIC -I/usr/include/python2.4 -c conftest.c -o conftest.o
building 'twisted.runner.portmap' extension
creating build/temp.linux-x86_64-2.4
creating build/temp.linux-x86_64-2.4/twisted
creating build/temp.linux-x86_64-2.4/twisted/runner
gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtun
e=generic -D_GNU_SOURCE -fPIC -fPIC -I/usr/include/python2.4 -c twisted/runner/portmap.c -o build/temp.linux-x86_64-2.4/twisted/runner/portmap.o
twisted/runner/portmap.c:10:20: error: Python.h: No such file or directory
twisted/runner/portmap.c:14: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
twisted/runner/portmap.c:31: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
twisted/runner/portmap.c:45: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘PortmapMethods’

Error causing zope to be installed

$ buildbot start /home/buildbot/master/
Traceback (most recent call last):
  File "/usr/bin/buildbot", line 4, in ?
    runner.run()
  File "/usr/lib/python2.4/site-packages/buildbot/scripts/runner.py", line 939, in run
    start(so)
  File "/usr/lib/python2.4/site-packages/buildbot/scripts/startup.py", line 85, in start
    rc = Follower().follow()
  File "/usr/lib/python2.4/site-packages/buildbot/scripts/startup.py", line 6, in follow
    from twisted.internet import reactor
  File "/usr/lib64/python2.4/site-packages/twisted/internet/reactor.py", line 11, in ?
    from twisted.internet import selectreactor
  File "/usr/lib64/python2.4/site-packages/twisted/internet/selectreactor.py", line 17, in ?
    from zope.interface import implements
ImportError: No module named zope.interface

Installation was the easy part, configuration a little more complex.

Tagged with: General Open Source Web Web Development

Producing IQR and Outlier statistics with SQL

The interquartile range (IQR) measures the spread of the middle 50% of a distribution — the distance between the first quartile (Q1) and the third quartile (Q3). Combined with Tukey’s 1.

Producing Mode statistics with SQL

The mode is the value or values that appear most frequently in a dataset. Unlike the mean or median, it applies naturally to categorical and ordinal data — star ratings, product codes, survey responses — and reveals what is most common, not what is average.

Extending MySQL Capabilies with UDFs, Plugins and Components - Part 2

MySQL offers three different approaches to extending the SQL capabilities with the default product you download and install. These are: User Defined Function (UDF) MySQL Manual MySQL Plugin MySQL Manual MySQL Component MySQL Manual In my prior post I provided a new uuidv function that accepted a numeric argument to return a string of the version of UUID specified.