Programmierung Grundlagen, anhand von Python (2022-01-17 - 2022-01-10)

Training Information

Offizielle Beschreibung

tecTrain “Programmierung Grundlagen”

Material

• Python: The Language Fundamentals

• Github Repository

Überblick

Die Kurssprache des Kurses “Programmierung Grundlagen” ist Python; viele der Python-spezifische Elemente werden von hier unterrichtet.

Jupyter Notebook

• Structure

• Whole notebook

Log

Tag 1

Variablen und Datentypen

• Blahblah

• Hello World

  • Hello World: hello.py

  • Commandline arguments: argv.py

• Syntax etc.

  • Indentation: indentation.py

• Datatypes

  • Overflow in C: overflow.c

• Boolean

• More About Strings

  • Encoding: Liebe Grüße, Jörg in UTF-8 umlaut-utf8.txt

  • Encoding: Liebe Grüße, Jörg in ISO-8859-1 umlaut-iso-latin-1.txt

• Exercise: Swap Two Variables

  • Swap: swap.py

  • Swap, Pythonic version: swap-pythonic.py

  

Kontrollstrukturen

• The if Statement

• Exercise: Determine Maximum of Two Numbers

  • Maximum: maximum.py

  • Maximum, Pythonic version maximum-pythonic.py

• Exercise: Greeting, Depending on Time of Day

  • greet.py

Tag 2

• while Loops

• Exercise: Even Numbers (while)

  • Straightforward (while): even.py

  • Straightforward (using for; slightly better): even-for.py

  • Even-number generator: even-yield.py

  • Not programming anything, but rather using range()’s step-width parameter: even-ultimate-pythonicity.py

• Exercise: Primeness (while)

  

  • prime.py

• Sequential Datatypes

• Indexing and Slicing

• for Loops

• Compound Datatypes

  • Sequential search in output list (bad): uniq-sequential.py

  • Constant-time search in set (good): uniq-set.py

• Exercise: Digit to English Word

  • digit.py

Tag 3

• Functions

  • Functions (Slideshow)

  • Functions: Global and Local Scope (Livehacking Screenplay)

• Exercise: Determine Maximum of Two Numbers (Function)

• Exercise: Function: uniq()

  • uniq-function.py

  • Using dict.fromkeys(): uniq-fromkeys.py

• Exercise: Generator: uniq()

• More About Lists

• More About Dictionaries

• More About Sets

  Talking about searchable datastructures, like in dict and set (those are implemented as hash tables, btw.)

  • Hash Table

    

  • Red-Black Tree

    

• Miscellaneous String Methods

• File I/O

  • Using f.readline() (EOF is clumsy): passwd-readline.py

  • Pythonic, using iteration: passwd-iter.py

• Exercise: Eliminate Empty/Comment-Only Lines

  • distill.py

• Exercise: Parsing /etc/passwd

  • Larger OO/modules/database “project” see here

Tag 4

• Modules and Packages

• Object Oriented Programming

• SQL

  • DBAPI 2

  • DBAPI 2: sqlite3

  • Exercise: larger OO/modules/database “project” see here

Links

• PHP: A Fractal of Bad Design