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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Some gems from Intermediate Python

Last week, I ran a private Python Intermediate course - using Python 2.7 at customer request - and here are some of the code snippets I wrote in front of the class - little things I may not have blogged about in the past. Complete examples being emailed to the delegates!

 # with keyword to perform open and closure on object
 # -------------------------------------------------
 
 with table.rectangularTable("Bob","3",2000,100) as ourparty:
         print ourparty
         print ourparty.getSeats()
 print ourparty
 
 # defining your own "with"
 # -----------------------
 
         def __enter__(this,*t,**tt):
                 print "We have a nice table by the window"
                 print t,tt
                 return this
         def __exit__(this,*t,**tt):
                 print "Can we have a cleaner over here please?"
                 print t,tt
 
 # map, filter and reduce examples
 # -------------------------------
 
 teams = map(lambda x: x/11,sizes)
 fewspares = filter(lambda x: x%11 < 1,sizes)
 ballgames = filter(lambda x:x.find("ball")>-1,games)
 print reduce(lambda x,y: x+y, sizes)
 
 # Python 2 - sorting
 # ------------------
 
 found.sort(lambda x,y:cmp(len(x),len(y)) or cmp(x,y))
 
 # Python 2 v Python 3 sorting
 # ---------------------------
 
 if sys.version_info < (3,0):
         found.sort(lambda x,y:cmp(len(x),len(y)))
 else:
         found.sort(key = lambda x:len(x))
 
 # Python 2 and 3 compatible printing
 # ----------------------------------
 
 print("Here are the remote IP visitors to your images")
 for k in range(len(found)):
         sep = ((k+1)%4 and k+1 != len(found)) and " " or "\n"
         sys.stdout.write("%16s%s"%(found[k],sep))
(written 2016-10-30)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
Y115 - Additional Python Facilities
  [183] The elegance of Python - (2005-01-19)
  [208] Examples - Gadfly, NI Number, and Tcl to C interface - (2005-02-10)
  [239] What and why for the epoch - (2005-03-08)
  [463] Splitting the difference - (2005-10-13)
  [663] Python to MySQL - (2006-03-31)
  [672] Keeping your regular expressions simple - (2006-04-05)
  [753] Python 3000 - the next generation - (2006-06-09)
  [901] Python - listing out the contents of all variables - (2006-10-21)
  [1043] Sending an email from Python - (2007-01-18)
  [1136] Buffering output - why it is done and issues raised in Tcl, Perl, Python and PHP - (2007-04-06)
  [1149] Turning objects into something you can store - Pickling (Python) - (2007-04-15)
  [1305] Regular expressions made easy - building from components - (2007-08-16)
  [1336] Ignore case in Regular Expression - (2007-09-08)
  [1337] A series of tyre damages - (2007-09-08)
  [1876] Python Regular Expressions - (2008-11-08)
  [2407] Testing code in Python - doctest, unittest and others - (2009-09-16)
  [2435] Serialization - storing and reloading objects - (2009-10-04)
  [2462] Python - how it saves on compile time - (2009-10-20)
  [2655] Python - what is going on around me? - (2010-02-28)
  [2721] Regular Expressions in Python - (2010-04-14)
  [2745] Connecting Python to sqlite and MySQL databases - (2010-04-28)
  [2746] Model - View - Controller demo, Sqlite - Python 3 - Qt4 - (2010-04-29)
  [2764] Python decorators - your own, staticmethod and classmethod - (2010-05-14)
  [2765] Running operating system commands from your Python program - (2010-05-14)
  [2786] Factory methods and SqLite in use in a Python teaching example - (2010-05-29)
  [2790] Joining a MySQL table from within a Python program - (2010-06-02)
  [3089] Python regular expressions - repeating, splitting, lookahead and lookbehind - (2010-12-17)
  [3442] A demonstration of how many Python facilities work together - (2011-09-16)
  [3469] Teaching dilemma - old tricks and techniques, or recent enhancements? - (2011-10-08)
  [4085] JSON from Python - first principles, easy example - (2013-05-13)
  [4211] Handling JSON in Python (and a csv, marshall and pickle comparison) - (2013-11-16)
  [4298] Python - an interesting application - (2014-09-18)
  [4439] Json is the new marshall, pickle and cPickle / Python - (2015-02-22)
  [4451] Running an operating system command from your Python program - the new way with the subprocess module - (2015-03-06)
  [4536] Json load from URL, recursive display, Python 3.4 - (2015-10-14)
  [4593] Command line parameter handling in Python via the argparse module - (2015-12-08)

Y199 - Python - Fast Start
  [2017] Python - a truly dynamic language - (2009-01-30)
  [3519] Python - current versions and implementations (CPython, Jython, IronPython etc) - (2011-11-13)
  [4707] Some gems from an introduction to Python - (2016-10-29)
  [4712] A reminder of the key issues to consider in moving from Python 2 to Python 3 - (2016-10-30)
  [4713] Equality (in Python) - (2016-10-30)


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Some other Articles
Convering from Python 2 to Python 3 - an update, and the 2to3 utility
Searching a Json or XML structure for a specific key / value pair in Python
Some gems from Intermediate Python
Scons - a build system in Python - building hello world
Melksham trial train service is to be made permanent
Course dates - from October 2016 to December 2017
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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