this = 'is a code block'

from pylab import linspace

from pylab import *

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for x in range(3):
     print x

x = 1
x = 2

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for x in range(3):
    print x

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2+2

3+3

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    def plus_grand_element(liste):
        """
        Renvoie le plus grand élément de la liste
        EXAMPLES::
            sage: plus_grand_element([7,3,1,10,4,10,2,9])
            10
            sage: plus_grand_element([7])
            7
        """
        resultat = liste[0]
        for i in range(1, len(liste)-1):
            # Invariant: resultat est le plus grand element de liste[:i]
            assert resultat in liste[:i]
            assert all(resultat >= x for x in liste[:i])
            if liste[i] > resultat:
                resultat = liste[i]
        return resultat
    plus_grand_element([7,3,1,10,4,10,2,9])

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