http://www.python.org/

Lectures

• Introduction à Python, O'Reilly
• Apprendre à programmer avec Python, PDF sur la page web de l'auteur
• How to Think Like a Computer Scientist: Learning with Python

Documentation

• en local (file: /usr/share/doc/python2.3-doc/html/index.html)
• en ligne
• prospection: quand je cherche quelque chose, je fais dir(objet) et puis help(objet.attribut) dans le shell python

• https://www.anaconda.com/download/

J'ai suivi une formation python du 6 au 9 avril 2004.

Formateur: F. Aidouni

Trucs intéressants:

Faire un serveur web : tcpserver (package ucspi-tcp), de djb

tcpserver -v -R -H 0 10078 /home/carl/python/tp_web1.py

Voir aussi dnsbe

Novembre 2017

python 3 est déjà installé :

dpkg -l python3
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  python3        3.5.3-1      amd64        interactive high-level object-ori

Installer idle pour la version 3 de Python :

sudo aptitude install idle3

Installer ipython :

sudo aptitude install python3-pip
sudo pip3 install ipython

https://jorisvandenbossche.github.io/FLAMES-python-data-wrangling/setup.html

Prérequis :

• https://www.learnpython.org/en/Welcome

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Fri Oct 15 13:21:07 2021
 
@author: carl
"""
 
### https://www.learnpython.org/en/  ###
 
x = 1
if x == 1 :
        print("Hello, World!")
 
myint = 7
print(myint)
 
myfloat = 7.0
print(myfloat)
myfloat = float(7)
print(myfloat)
 
mystring = 'hello'
print(mystring)
mystring = "hello"
print(mystring)
 
mystring = "Don't worry about apostrophes"
print(mystring)
 
one = 1
two = 2
three = one + two
print(three)
 
hello = "hello"
world = "world"
helloworld = hello + " " + world
print(helloworld)
 
a, b = 3, 4
print(a,b)
 
# This will not work!
one = 1
two = 2
hello = "hello"
 
print(one + two + hello)
 
mystring = "hello"
myfloat = 10.0
myint = 20
 
# testing code
if mystring == "hello":
    print("String: %s" % mystring)
if isinstance(myfloat, float) and myfloat == 10.0:
    print("Float: %f" % myfloat)
if isinstance(myint, int) and myint == 20:
    print("Integer: %d" % myint)
 
numbers = []
strings = []
names = ["John", "Eric", "Jessica"]
 
numbers.append(1)
numbers.append(2)
numbers.append(3)
strings.append('hello')
strings.append('world')
 
second_name = names[1]
 
print(numbers)
print(strings)
print("The second name on the names list is %s" % second_name)
 
# modulo
remainder = 11 % 3
print(remainder)
 
squared = 7 ** 2
cubed = 2 ** 3
print(squared)
print(cubed)
 
lotsofhellos = ("hello" + " ") * 10
print(lotsofhellos)
 
even_numbers = [2,4,6,8]
odd_numbers = [1,3,5,7]
all_numbers = odd_numbers + even_numbers
print(all_numbers)
 
print([1,2,3] * 3)
 
x = object()
y = object()
 
# TODO: change this code
x_list = [x] * 10
y_list = [y] * 10
big_list = x_list + y_list
 
print("x_list contains %d objects" % len(x_list))
print("y_list contains %d objects" % len(y_list))
print("big_list contains %d objects" % len(big_list))
 
# testing code
if x_list.count(x) == 10 and y_list.count(y) == 10:
    print("Almost there...")
if big_list.count(x) == 10 and big_list.count(y) == 10:
    print("Great!")
 
data = ("John", "Doe", 53.44)
format_string = "Hello"
 
print("%s %s %s. Your current balance is $%f" % (format_string, data[0], data[1], data [2]))
 
data = ("John", "Doe", 53.44)
format_string = "Hello %s %s. Your current balance is $%s."
 
print(format_string % data)
 
astring = "Hello world!"
afewwords = astring.split(" ")
print(afewwords)
 
s = "Hey there! what should this string be?"
s = "Whot shoald thas be?"
# Length should be 20
print("Length of s = %d" % len(s))
 
# First occurrence of "a" should be at index 8
print("The first occurrence of the letter a = %d" % s.index("a"))
 
# Number of a's should be 2
print("a occurs %d times" % s.count("a"))
 
# Slicing the string into bits
print("The first five characters are '%s'" % s[:5]) # Start to 5
print("The next five characters are '%s'" % s[5:10]) # 5 to 10
print("The thirteenth character is '%s'" % s[12]) # Just number 12
print("The characters with odd index are '%s'" %s[1::2]) #(0-based indexing)
print("The last five characters are '%s'" % s[-5:]) # 5th-from-last to end
 
# Convert everything to uppercase
print("String in uppercase: %s" % s.upper())
 
# Convert everything to lowercase
print("String in lowercase: %s" % s.lower())
 
# Check how a string starts
if s.startswith("Str"):
    print("String starts with 'Str'. Good!")
 
# Check how a string ends
if s.endswith("ome!"):
    print("String ends with 'ome!'. Good!")
 
# Split the string into three separate strings,
# each containing only a word
print("Split the words of the string: %s" % s.split(" "))
 
numbers = [
    951, 402, 984, 651, 360, 69, 408, 319, 601, 485, 980, 507, 725, 547, 544,
    615, 83, 165, 141, 501, 263, 617, 865, 575, 219, 390, 984, 592, 236, 105, 942, 941,
    386, 462, 47, 418, 907, 344, 236, 375, 823, 566, 597, 978, 328, 615, 953, 345,
    399, 162, 758, 219, 918, 237, 412, 566, 826, 248, 866, 950, 626, 949, 687, 217,
    815, 67, 104, 58, 512, 24, 892, 894, 767, 553, 81, 379, 843, 831, 445, 742, 717,
    958, 609, 842, 451, 688, 753, 854, 685, 93, 857, 440, 380, 126, 721, 328, 753, 470,
    743, 527
]
for number in numbers:
    if number == 237:
        break
 
    if number % 2 == 1:
        continue
 
    print(number)
 
 
# Modify this function to return a list of strings as defined above
def list_benefits():
    list = ["More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together"]
    return list
 
# Modify this function to concatenate to each benefit - " is a benefit of functions!"
def build_sentence(benefit):
    sentence = benefit + " is a benefit of functions!"
    return sentence
 
def name_the_benefits_of_functions():
    list_of_benefits = list_benefits()
    for benefit in list_of_benefits:
        print(build_sentence(benefit))
 
name_the_benefits_of_functions()
 
class MyClass:
    variable = "blah"
 
    def function(self):
        print("This is a message inside the class.")
 
myobjectx = MyClass()
 
myobjectx.variable
 
print(myobjectx.variable)
 
myobjectx = MyClass()
myobjecty = MyClass()
 
myobjecty.variable = "yackity"
 
# Then print out both values
print(myobjectx.variable)
print(myobjecty.variable)
 
myobjectx.function()
 
 
# define the Vehicle class
class Vehicle:
    name = ""
    kind = "car"
    color = ""
    value = 100.00
    def description(self):
        desc_str = "%s is a %s %s worth $%.2f." % (self.name, self.color, self.kind, self.value)
        return desc_str
# your code goes here
car1 = Vehicle()
car2 = Vehicle()
car1.kind = "convertible"
car1.color = "red"
car1.value = 600000.00
car1.name = "Fer"
car2.kind = "van"
car2.color = "blue"
car2.value = 10000.00
car2.name = "Jump"
 
# test code
print(car1.description())
print(car2.description())
 
 
phonebook = {}
phonebook["John"] = 938477566
phonebook["Jack"] = 938377264
phonebook["Jill"] = 947662781
print(phonebook)
 
phonebook = {
    "John" : 938477566,
    "Jack" : 938377264,
    "Jill" : 947662781
}
print(phonebook)
 
phonebook = {"John" : 938477566,"Jack" : 938377264,"Jill" : 947662781}
for name, number in phonebook.items():
    print("Phone number of %s is %d" % (name, number))
 
del phonebook["John"]
print(phonebook)
 
phonebook = {
   "John" : 938477566,
   "Jack" : 938377264,
   "Jill" : 947662781
}
phonebook.pop("John")
print(phonebook)
 
phonebook = {  
    "John" : 938477566,
    "Jack" : 938377264,
    "Jill" : 947662781
}  
# your code goes here
phonebook["Jake"] = 938273443
del phonebook["Jill"]
 
# testing code
if "Jake" in phonebook:  
    print("Jake is listed in the phonebook.")
 
if "Jill" not in phonebook:      
    print("Jill is not listed in the phonebook.")
 
import re
 
find_members = []
for member in dir(re):
    if "find" in member:
        find_members.append(member)
 
print(sorted(find_members))