For 2021 - online Python 3 training - see ((here)).
Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.
Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
Tcl - learning how to use namespaces, packages and libraries together
Tcl supports both packages (which allow code to be loaded from libraries at run time) and namespaces (which allow for procs and variables to be grouped together to allow you to avoid conflicts as you use code from lots of different sources). Strictly speaking, the two sets of facilities are independent but in practice they're used together, with the name of the package and the name of the namespace usually being the same.
Having covered both topics independently on yesterday's course, I went on to write a short new example that shows how they work together and I've added the course code of that example to our web site - this is an example that shows you a lot in a few lines!
Source code of the main program - here
Source code of the packages it loads - here
Dorothy:jtc grahamellis$ tclsh dinpack
Copyright Well House Consultants, 2008
Copyright Well House Consultants, 2008
You need a 11.0kgs bird if it's a chicken
You need a 13.9kgs bird if it's a goose
You need a 13.9kgs bird if it's imported
This subject covered on our Public Tcl Course
. There's a lot to cover on that course, so it's quite a short section. Also covered on private courses at our centre
which are tailored to meet your needs (Full list of modules on Tcl
). For larger groups, we can also run courses at you own office (written 2008-02-02)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articlesT213 - Tcl/Tk - Libraries, Packages and Namespaces 
example of Tcl namespaces and packages - (2004-12-10) 
Packages and Namespaces are like Suitcases and Aircraft - (2007-09-09) 
Tcl - uplevel to run code at calling level - (2009-10-24) 
Separating groups of variables into namespaces - (2010-11-24) 
What is a namespace and why do we need them? - (2011-09-03) 
Tcl packages, pkg_mkIndex, pkgIndex.tcl -what are they and why use them. - (2011-09-03) 
Loading packages in your Tcl program - (2015-10-09)
Some other Articles
Short and sweet and sticky - PHP form inputComment spam blocked. Please comment via ForumsExpecting a item from a list of possiblesRailway Acronyms and AbbreviationsTcl - learning how to use namespaces, packages and libraries togetherObject Oriented TclSelecting file names in a shell - one word or anotherCarers at work - court case changesJust one thing let the service down - but that is my memoryNottingham - just text!
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