# latest_tutorial.py

import time
from reader import feed

def main():
    """Print the latest tutorial from Real Python"""
    tic = time.perf_counter()
    tutorial = feed.get_article(0)
    toc = time.perf_counter()
    print(f"Downloaded the tutorial in {toc - tic:0.4f} seconds")

    print(tutorial)

if __name__ == "__main__":
    main()
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import sys
def hello(name) :
	print("hello '",name,"'")
	
def main() :
	hello(sys.argv[0]) ## vide !

if __name__ == '__main__' :
	main()
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if time_hour >= 0 and time_hour <= 24:
	print('Suggesting a drink option...')
	if mood == 'sleepy' and time_hour < 10:
		print('coffee')
	elif mood == 'thirsty' or time_hour < 2:
	     print('lemonade')
	else: 
		print('water')
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multi = """It was the best of times.  
  It was the worst of times."""
print(multi)
# It was the best of times.  
#   It was the worst of times.  
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s = "hello" # 1er index = 0
# s[1:4] est "ell"
# s[1:] correspond à "ello"
# s[:] est 'Hello'' : copie de chaine
# s[1:100] correspond à "ello". Un index trop grand est tronqué
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address_book = [{'name':'N.X.', 'addr':'15 Jones St', 'bonus': 70},
 {'name':'J.P.', 'addr':'1005 5th St', 'bonus': 400},
 {'name':'A.A.', 'addr':'200001 Bdwy', 'bonus': 5},]

for person in address_book:
	print(f'{person["name"]:8} || {person["addr"]:20} || {person["bonus"]:>5}')

# N.X. || 15 Jones St || 70 
# J.P.  || 1005 5th St ||  400
# A.A.  || 200001 Bdwy ||  5
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ustring = 'A unicode \u018e string \xf1'
b = ustring.encode('utf-8')
print(b)
b'A unicode \xc6\x8e string \xc3\xb1' ## bytes of utf-8 encoding. Note the b-prefix.  
t = b.decode('utf-8') ## Convert bytes back to a unicode string  
print(t == ustring) ## It's the same as the original, yay!  

#True
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t = ("coucou","serge","françoise")
print(t)
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d = {}
d["a"]= "alpha"
d["b"]= "beta"
d["o"]= "omega"
print(d["a"]) ## alpha
"a" in d ## True
print(d.keys())
print(d.values())
for k in sorted(d.keys()) :
	print('key:', k, '-->', d[k])
print(d.items()) # rend une liste de tuples de taille 2

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import matplotlib.pyplot as plt
from math import *

start = 0
end = 15
nb_points = 100
pas = (end - start)/(nb_points - 1)
X = [start + i * pas for i in range(nb_points)]
Y1 = [sin(i) for i in X]
Y2 = [cos(i) for i in X]
Y3 = [i**2/100 for i in X]

plt.plot(X, Y1, lw = 3, ls = ":", c = 'green', label='Sin')
plt.plot(X, Y2,lw = 3, ls = "--", c = "red", label ="Cos")
plt.plot(X, Y3, label="$x^2/100$")
plt.grid(visible=True)
plt.xlabel("position X")
plt.ylabel("valeur Y")
plt.title("exemple")
plt.legend()
plt.show()
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import numpy as np
M = np.array([[1, 1, 1 ,0],[-1,1,0,1],[0,1,1,-1],[-1,-1,0,1],[-1,0,-1,-1]])
#print(f"M :\n{M}") 
print("M :\n",M)
Mt = M.T
print("M x Mt :")
MMt = M.dot(Mt)
print(MMt)
det = np.linalg.det(MMt)
print(f"det = {int(det)}")
MtM = Mt.dot(M)
print("Mt x M :")
print(MtM)
det = np.linalg.det(MtM)
print(f"det = {int(det)}")

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