Python - Conditionals and Loops

Python module Y103

Conditionals and Loops

Exercises, examples and other material relating to training module Y103. This topic is presented on public courses Learning to program in Python, Python Programming

Python Programming - training course - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging.

Python Programming - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging. This course starts at the fundamentals ...

http://www.wellho.net/course/ypfull.html [course]

Learning to Program in Python - training course - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging.

Learning to Program in Python - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging. This course starts ...

http://www.wellho.net/course/ylfull.html [course]

if, elif and else

# Conditional example 4 - if / elif / else """ Note - you should be careful of the order in which you write your conditions so that you don't end up ...

http://www.wellho.net/resources/ex.php4?item=y103/if4.py [code sample]

Python - when to use the in operator

Python's in construct, when used with an if statement, lets you loop through all the members of a collection (such as a list or a tuple) and see if there's ...

http://www.wellho.net/mouth/835_Pyth ... rator.html [short article]

the while and else structure

All the languages we teach have if and else conditionals, and while loops. They re a necessary part of any language, accepted as something of a standard, ...

http://www.wellho.net/solutions/python-t ... cture.html [longer article]

The ternary operator in Python

The ? : operator that you may have come across in Perl, PHP, C and Java - known as the ternary or conditional operator - is ABSENT from Python. "But it's ...

http://www.wellho.net/mouth/657_The- ... ython.html [short article]

Alternative to switch, case and default

""" There is no switch or case in Python ... because you can do better by using its OO capabilities and a dictionary. """ def doblue (): print "The ...

http://www.wellho.net/resources/ex.php4?item=y103/python_switch_case [code sample]

How to write code in Python that's only run if a certain condition is met, and how to repeat a piece of code more than once.

This topic is presented on public courses Learning to program in Python, Python Programming

Examples from our training material

bp	Exchange Rate Conversion answer
combo.py	Combining conditions with and and or
goal.py	when is a number "false"?
groupsave	Groupsave ticket calculator
if1.py	an if statement in python
if2.py	if with a block
if3.py	Nested blocks
if4.py	if, elif and else
ken	single and multiple statement blocks / conditionals
lenny	First Loop
python_switch_case	Alternative to switch, case and default
shand.py	Shorthand operators
sintea	Singapore Teapot - exercise answer
sintea2	Singapore Teapot - exercise answer (2)
tab2.py	loop controls - break and else
table.py	a loop in python

Pictures

Learning to program in Python

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Booleans.
If, elif and else.
Inset blocks.
While loops.
Break and continue.
Shorthand Operators.

Complete learning

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