Memo Syntaxe Python

x = 10          # int
nom = "Alice"   # str
pi = 3.14       # float
actif = True    # bool

type(x)          # <class 'int'>
str(10)          # '10' : entier -> texte
int("10")        # 10 : texte -> entier
float("3.14")    # 3.14 : texte -> decimal

if condition:
    ...
elif autre:
    ...
else:
    ...
match valeur:
    case 1: ...
    case _: ... 'else'

for i in range(5):
    print(i)
while condition:
    ...
    break
    continue

def ma_fonction(a, b=10):
    return a + b
resultat = ma_fonction(3)
carre = lambda x: x**2

liste = [1, 2, 3]
liste.append(4)
liste[0]      # 1er element
liste[-1]     # dernier
liste[1:3]    # slicing
carres = [x**2 for x in range(5)]

d = {"cle": "valeur", "age": 25}
d["cle"]
d["nouvelle_cle"] = 1
for cle, valeur in d.items():
    print(cle, valeur)

nom = "Alice"
msg = f"Bonjour {nom} !"
texte.strip()
texte.split(",")
texte.upper()
texte.lower()

print("Resultat :", valeur)
age = input("Ton age : ")
age = int(age)
print(f"Tu as {age} ans")

try:
    x = 10 / 0
except ZeroDivisionError:
    print("Erreur !")
else:
    print("OK")
finally:
    print("Fin")

with open("data.txt", "r") as f:
    contenu = f.read()
with open("out.txt", "w") as f:
    f.write("Bonjour")

class Chien:
    def __init__(self, nom):
        self.nom = nom
    def aboyer(self):
        print(f"{self.nom} : Wouf")
rex = Chien("Rex")

==   !=   <   >   <=   >=
and   or   not
in    is
x += 1      # x = x + 1
x -= 1      # x = x - 1

import math
from math import sqrt
import numpy as np
math.sqrt(16)
sqrt(16)