Merge remote-tracking branch 'balazs/master'

balazs/orgfiles/cdistweek_05-11.org

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+*** cdist #5: Generating Code & Exploring
+**** Lecture content
+***** Objective
+      - Understand how to *generate code* and when to use it
+      - Exploring explorers
+***** Code generation steps
+      - Modify the previously created type *__my_nginx_site*
+      - Read about cdist messaging
+      - If there was a change in the nginx configuration file, reload nginx
+***** Explorer steps
+      - Modify the *__my_nginx_site* type to use the *os explorer*
+      - Adjust your type to work on Alpine Linux and Debian (or two
+        other Linux distributions of your choice)
+      - Set the nginx configuration directory accordingly
+***** Documentation
+      - Explain the following in your cdist.org file
+      - What is the difference between gencode-remote and the remote code?
+      - What is the difference between gencode-local and gencode-remote?
+      - Locate a type that comes with upstream cdist that uses
+        gencode-local - which one is it? Why does it need gencode-local?
+
+**** Client notes

balazs/python-calculator/calc.py

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+import sys
+filename = sys.argv
+
+def input_and_calculate_one_line():
+    printable_list = []
+
+    input_numbers = input("""Enter the numbers for summing (seperated by space), or enter "q" to exit.
+""")
+#    print (input_numbers)
+
+    if input_numbers == "q":
+        return ""
+    else:
+        splitting_converting_summing_printing(input_numbers)
+
+def splitting_converting_summing_printing(input_numbers):
+    split_numbers = input_numbers.split()
+    print (split_numbers)
+    
+    converted_list = list(map(int, split_numbers))
+    print (converted_list)
+
+    summed_numbers = sum(converted_list)
+    print (summed_numbers)
+
+
+    printable_list = intersperse(converted_list, "+")
+
+    list_with_strings = convertListElementsToStr(printable_list)
+    
+    converted_to_strings_list = listToString(list_with_strings)
+    print (converted_to_strings_list, "=", summed_numbers)
+
+
+#    for i in converted_list:
+
+#        printable_list.append(i)
+#        printable_list.append("+")
+#        printable_list += str(i)
+#        printable_list += '+'
+
+def intersperse(lst, item):
+    result = [item] * (len(lst) * 2 - 1)
+    result[0::2] = lst
+    return result
+
+def convertListElementsToStr(list):
+#    how_long = len
+#    result = []
+    result = map(str, list)
+#    result.append[str(i) for i in list]
+    return result
+
+def listToString(s):  
+    str1 = " " 
+    return (str1.join(s)) 
+    
+
+input_and_calculate_one_line()
+    

balazs/python-calculator/notes.org

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+*** Python applying learnings from 1..6
+**** Lecture notes
+     - Previous topics covered:
+       - Printing
+       - Formatting
+       - Variables
+       - Escape Sequences
+       - Inputting text
+       - Reading arguments / using argv
+       - Reading files
+       - Defining methods
+       - Boolean logic
+       - Branching using if/else/elif
+       - Loops: for/while
+     - Today we write a calculator that saves results in a file in python
+       - How it works in general
+         You read the input until you read a line that only contains a
+         "q". Every input line consists of numbers separated by a
+         space. For instance "4 5 9". You will need to .split() the
+         input.
+     - Steps
+       - Create a python script named "calc.py"
+       - It takes 1 command line argument (argv), which is the filename
+         - We will store the calculations *and* results in this file
+       - Create a method named "input_and_calculate_one_line"
+         - It does not have any arguments
+         - It reads one line via *input*
+         - It splits the input (let's say "4 5 9" => [ "4", "5", "9") ])
+         - It calculates the result (f.i. 4+5+9 = 18) and stores it in
+           a variable (use *sum* over the *list*)
+         - It returns a string of the format "4 + 5 + 9 = 18"
+         - If the line only contains a "q" it return "" (an empty string)
+       - Create a method named "editor" that takes a filename as an argument
+         - It opens the file for writing
+         - It uses input_and_calculate_one_line in a while loop
+         - while the return result is not "", we append the string to
+           the file
+         - When the return result is "", the function exits
+
+*** State:
+input_and_calculate_one_line is complete, however it's probably a garbage implementation.
+Spent too much time on converting back and forth and getting the output right. 
+
+Editor (file io) is not complete yet