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Memo

A mental map on the Python Programming Language

Resources

Websites

Python.org

Docs

English

French

La doc. de G. Swinnen

map info

created 2008-07-05 nliebeaux@free.fr

PythonModules

os

current working dir

dummyDir = getcwd()

change dir

chdir('/tmp')

from os import *

math

trigonometry

number = sin(2)

square root

number = sqrt(2)

from math import *

Oriented-ObjectProgrammation

Class Definition

class myNewClass: def __init__(self,...):

PythonLibraries

Misc.

Py2Exe (for Win only)

I/O Ports

Pyparallel (PC parallel port)

Pyserial (PC serial port)

Multimedia & Gaming

Graphics

Scientific computing

User Interface libs

TKinter

website

SyntaxRules

Respect indentation

No ";" line ending

Variables

Operators

Logical op.

not

or

and

power : **

5**2

Useful variablesfunctions

Tuples

conversion

str(myNumber)

dummyStr = 'Steelers vs Dolphins'

Dictionnaries

dummyDic3 = {[1,5]:"metro", [12,5]:"bus", [4,4]:"truck"}

dummyDic2 = {1:"abc", 2:"def".71}

dummyDic1 = {"a":5, "b":11, "c":24}

Lists

dummyList = [5, 'toto', 2.71]

list inversion

dummyList.reverse()

list search

dummyList.index()

list sort

dummyList.sort()

list append

dummyList.append()

list go through

for each x in dummyList

list element check

x in dummyList

list repeat

dummyList*5

lists concatenation

List1+List2

list length

len(dummyList)

an powerful array-like structure

CommonDeclarations

global variable declaration

global fieldGoal

Strings

special methods avalaible

string uppercase

dummyStr.upper()

littleText[-3]

Negative index means "backward"

littleText[3]

"Go Patriots !"

Starting index = 0

littleText = "Go Patriots !"

Floats

number = 3.14159

Integers

number = 5

no type declaration needed

Files

close a file

idFile.close()

write into a file

idFile.write('my text into my file')

open a file

idFile = open('myfile.ext', 'w')

Functions

TKinter basics

print type(number)

print number

Usefulfunctions

range

range(1,10,2)

range(5,10)

range(5)

user input

answer = raw_input("what's your name ?")

Exceptions

except ValueError:

try: ... break

Control Strutures

While () ...

while (condition2):

If () elif() else...

if (condition1):elif(condition2):else:

for ()...

dummyList = ['cat', 'dog', 'horse']for animal in dummyList: print len(animal)

for x in range(a,b):

Function Definition

Returned variables usethe keyword returnat the end of the function def.

All variables within thefunction core are local.

def functionName(param1="value1", param2="value2", ...):

Allows default values definitions.

def functionName(param1, param2, ...):

def functionName():