====== Python Basics ======


===== debug python =====

linux
==== idle ====
 
idle [[https://en.wikipedia.org/wiki/IDLE]]
==== PUDB debug====

  * Doku [[https://documen.tician.de/pudb/]]
  * Install pudb debug
  * <code> sudo pip install pudb </code>

  * identity tty ID: <code> tty </code>
  * call <code> PUDB_TTY=/dev/pts/0 pudb sensor.py </code>
  * batch file
  * <code>
       pudebug
       PUBTTY=`tty` echo "puDB- start in dir with source files"
       echo "Call with name of file to be debugged"
       echo "Call in window used for debugging"
       PUDB_TTY=`tty`  pudb $1 </code>


<code>
puDB commands
n – step over (“next”)
s – step into
c – continue
r/f – finish current function
t – run to cursor
o – show console/output screen
b – toggle breakpoint
m – open module
! – Jump into interactive shell (most useful)
/ – text search
</code>


===== Online Manual =====
Python 2.7 [[https://docs.python.org/2/]]

Python 3 [[https://docs.python.org/3/]]
==== Tutorial ====
[[http://www.tutorialspoint.com/python]]

==== Examples ====
=== Case Statement ===
<code>
def gpio_OK(): return (True)

def gpio_ground(): return (-1)

def gpio_3v(): return (3)

def gpio_5v(): return (5)

def gpio_I2C(): return (10)

gpio_board= {
              1: gpio_3v, 2: gpio_5v, 
              3: gpio_OK, 4: gpio_5v, 
              5: gpio_OK, 6: gpio_ground,
              7: gpio_OK, 8 :gpio_OK, 
              9 : gpio_ground, 10: gpio_OK, 
              11: gpio_OK, 12: gpio_OK,
              13: gpio_OK, 14: gpio_ground,
              15: gpio_OK, 16: gpio_OK,
              17: gpio_3v, 18: gpio_OK,
              19: gpio_OK, 20: gpio_ground,
              21: gpio_OK, 22: gpio_OK,
              23: gpio_OK, 24: gpio_OK,
              25: gpio_ground, 26: gpio_OK,
              27: gpio_I2C, 28: gpio_I2C,
              29: gpio_OK, 30: gpio_ground,
              31: gpio_OK, 35: gpio_OK,
              33: gpio_OK, 34: gpio_ground,
              35: gpio_OK, 36: gpio_OK,
              37: gpio_OK, 38: gpio_OK,
              39: gpio_ground, 40: gpio_OK
            }

gpio_board[2]() 

</code>