first abstraction added

examples/threading_abstraction.py

@@ -0,0 +1,30 @@
+import sys
+import threading
+import time
+import queue
+
+input_queue = queue.Queue()
+
+
+def add_input(input_queue):
+    while True:
+        input_queue.put(sys.stdin.read(1))
+
+def foobar():
+    global input_queue
+    input_thread = threading.Thread(target=add_input, args=(input_queue,))
+    input_thread.daemon = True
+    input_thread.start()
+
+    last_update = time.time()
+    while True:
+        if time.time()-last_update>0.5:
+            sys.stdout.write(".")
+            sys.stdout.flush()
+            last_update = time.time()
+        if not input_queue.empty():
+            print("\ninput:", input_queue.get())
+
+
+foobar()
+

learning_python3.md

@@ -73,6 +73,11 @@ TODO
 
 TODO helloworld
 
+## How to execute
+
+* within pycharm
+* from the command line
+
 ## Simple printing
 
 ## String formatting
@@ -89,23 +94,38 @@ TODO say hello program
 
 TODO say hello plus ask for age
 
+* slightly insist on *blocking* nature of `input()`
+
 ## Conditional logic  
 
+* introduction to `if`, `elif` and `else`
+
 ## Class string methods
 
 # Coding challenge - Celsius to Fahrenheit converter
 
 # Creating your own functions 
 
+## Functions that *do* something
+
 TODO pretty_print
 
-## Functions that *do* something
+## Variable scope
 
 ## Functions that *return* something
 
+TODO basic math functions
+
+# Using the standard library
+
+TODO import random exercise (digital dice)
+TODO import datetime exercise (will it be Sunday)
+
+# Coding challenge - Memento Mori calculator
+
 # Writing your first library
 
-TODO import pretty print
+TODO import pretty print and digital dice
 
 ## What are libraries?
 
@@ -113,8 +133,84 @@ TODO import pretty print
 
 ## What is `__name__ == "__main__"`?
 
-# Using the standard library
+## Anatomy of a program
 
-TODO import random exercise
+TODO imports, functions, execution
 
+# While loop 
+
+TODO guess the number exercise 
+
+# Lists
+
+## Creating lists
+
+## Picking elements
+
+## Slicing lists
+
+# For loop
+
+TODO say hello to my friends exercise
+
+# Coding challenge - Cheerleader chant
+
+TODO nested for loop exercise
+
+# Dictionaries as data containers
+
+TODO adapt the login generator to output a dict
+
+# Handling files
+
+## Reading from a file
+
+## Writing to a file
+
+## csv, JSON and yaml
+
+# Coding challenge - Login generator
+
+TODO write a login generator as a library with a cli as program
+BONUS argparse, save to file, read from file
+
+# Creating our own classes
+
+## Class examples
+
+TODO simple animal or vehicle exercise
+
+## Class inheritance
+
+TODO superhero game
+
+## Improve the login generator
+
+TODO convert the login generator to a class
+
+# Infinite programs
+
+* insist on the nature of scripts we did up until now
+
+## Logic breakdown of a simple game
+
+TODO hangman exercise
+
+## Trivial pursuit multiple choice game
+
+TODO [db](https://opentdb.com/api_config.php)
+
+## Threading
+
+TODO add a countdown timer to the multiple choice game
+
+# GUI programming
+
+## wxpython helloworld
+
+## wxpython guess the number
+
+# Introduction to the `logging` library
+
+# Coding challenge - Login generator with GUI