File: ecrit_2009.tex, line 45
def f():
x = 0
print x
f()
def g():
print x
g()
File: ecrit_2009.tex, line 61
def f():
x = 0
print x
x = 1
f()
def g():
print x
g()
File: ecrit_2009.tex, line 89
Traceback (most recent call last):
File "p1.py", line 11, in <module>
g()
File "p1.py", line 9, in g
print x
NameError: global name 'x' is not defined
File: ecrit_2009.tex, line 106
a = [ None, 0 ] b = [ None, 1 ] a [0] = b b [0] = a print a [0][0] [0][0] [0][0] [1]
File: ecrit_2009.tex, line 118
import copy a = [ None, 0 ] b = [ None, 1 ] a [0] = copy.copy (b) b [0] = a print a [0][0] [0][0] [0][0] [1]
File: ecrit_2009.tex, line 141
0 1
File: ecrit_2009.tex, line 147
a = [ None, 0 ] b = [ None, 1 ] a [0] = b # b et a [0] désignent la même liste b [0] = a # b [0] et a désignent la même liste
File: ecrit_2009.tex, line 171
0
File: ecrit_2009.tex, line 204
import random
def somme_alea (tableau, n) :
s = 0
for i in range (0, n) :
h = random.randint (0, len (tableau))
s += tableau [h]
print s / n
x = somme_alea ( range (0,100), 10)
print "x = ", x
File: ecrit_2009.tex, line 223
44 x = None
File: ecrit_2009.tex, line 234
Traceback (most recent call last):
File "examen2009.py", line 10, in <module>
print somme_alea ( range (0,100), 10)
File "examen2009.py", line 8, in somme_alea
s += tableau [h]
IndexError: list index out of range
File: ecrit_2009.tex, line 253
44
File: ecrit_2009.tex, line 258
h = random.randint (0, len (tableau)-1)
File: ecrit_2009.tex, line 288
def moyenne_mobile (suite, m) :
res = []
for i in range (m, len (suite)-m) :
s = 0
for j in range (-m,m+1) : s += suite [i+j]
res.append ( float (s) / (m*2+1) )
return res
File: ecrit_2009.tex, line 301
def moyenne_mobile (suite, m) :
res = []
for i in range (m, len (suite)-m) :
if i == m :
# ... ligne à remplacer
else :
# ... ligne à remplacer
res.append ( float (s) / (m*2+1) )
return res
File: ecrit_2009.tex, line 333
def moyenne_mobile (suite, m) :
res = []
for i in range (m, len (suite)-m) :
if i == m :
s = sum ( suite [i-m : i+m+1] )
else :
s = s - suite [i-m-1] + suite [i+m]
res.append ( float (s) / (m*2+1) )
return res
File: ecrit_2009.tex, line 358
def fonction_mystere (tableau) :
for i in range (0, len (tableau)) :
if tableau [i] % 2 != 0 : continue
pos = i
for j in range (i+1, len (tableau)) :
if tableau [j] % 2 != 0 : continue
if tableau [pos] < tableau [j] : pos = j
ech = tableau [i]
tableau [i] = tableau [pos]
tableau [pos] = ech
File: ecrit_2009.tex, line 375
if tableau [i] % 2 != 0 : continue
if tableau [pos] < tableau [j] : pos = j
File: ecrit_2009.tex, line 381
def fonction_mystere (tableau) :
for i in range (0, len (tableau)) :
pos = i
for j in range (i+1, len (tableau)) :
if tableau [pos] < tableau [j] : pos = j
ech = tableau [i]
tableau [i] = tableau [pos]
tableau [pos] = ech
File: ecrit_2009.tex, line 393
a = [ 0, 1, 4, 3, 5, 2 ] print a # affiche [ 0, 1, 4, 3, 5, 2 ] b = fonction_mystere (a) print b # affiche [ 4, 1, 2, 3, 5, 0 ]
File: ecrit_2009.tex, line 494
class Boucle :
def __init__ (self, a, b) :
self.a = a
self.b = b
def iteration (self, i) : # contenu d'une itération
pass
def boucle (self) : # opère la boucle
for i in range (self.a, self.b) :
self.iteration (i)
File: ecrit_2009.tex, line 510
class Gauss (Boucle) :
def __init__ (self, b) :
Boucle.__init__ (self, 1, b+1)
self.x = 0
def iteration (self,i) :
self.x += i
g = Gauss (10)
g.boucle ()
print g.x
File: ecrit_2009.tex, line 542
class Carre (Gauss) :
def iteration (self,i) :
self.x += i*i # ligne changée
g = Carre (10)
g.boucle ()
print g.x
File: ecrit_2009.tex, line 554
class Boucle2 (Boucle) :
def __init__ (self, a, b, c, d) :
Boucle.__init__ (self, a, b)
self.c = c
self.d = d
def iteration (self, i, j) :
pass
def boucle (self) :
for j in range (self.c, self.d) :
for i in range (self.a, self.b) :
self.iteration (i,j)
class Gauss2 (Boucle2) :
def __init__ (self, a, b) :
Boucle2.__init__ (self, 1, a+1, 1, b+1)
self.x = 0
def iteration (self, i,j) :
self.x += i+j
File: ecrit_2009.tex, line 577
class Boucle2 (Boucle) :
def __init__ (self, a, b, c, d) :
Boucle.__init__ (self, a, b)
self.c = c
self.d = d
def iteration (self, i) :
pass
def boucle (self) :
for j in range (self.c, self.d) :
self.j = j
for i in range (self.a, self.b) :
self.iteration (i)
class Gauss2 (Boucle2) :
def __init__ (self, a, b) :
Boucle2.__init__ (self, 1, a+1, 1, b+1)
self.x = 0
def iteration (self, i) :
self.x += self.j+i
File: ecrit_2009.tex, line 601
class Boucle2 (Boucle) :
def __init__ (self, a, b, c, d) :
Boucle.__init__ (self, a, b)
self.c = c
self.d = d
def iteration (self, i) :
pass
def boucle (self) :
for j in range (self.c, self.d) :
self.j = j
Boucle.boucle (self) # suppression d'une boucle
# caché dans la classe Boucle
File: ecrit_2009.tex, line 618
class Boucle2 (Boucle) :
def __init__ (self, a, b, c, d) :
Boucle.__init__ (self, a, b)
self.c = c
self.d = d
def iteration (self, i) :
for j in range (self.c, self.d) :
self.iteration2 (i,j)
def iteration2 (self, i,j) :
pass
class Gauss2 (Boucle2) :
def __init__ (self, a, b) :
Boucle2.__init__ (self, 1, a+1, 1, b+1)
self.x = 0
def iteration2 (self, i, j) :
self.x += j+i
File: ecrit_2009.tex, line 644
class Boucle2 (Boucle) :
def __init__ (self, a, b, c, d) :
Boucle.__init__ (self, a, b)
self.c = c
self.d = d
def iteration (self, i, j) :
pass
def boucle (self) :
ab = self.b - self.a
cd = self.d - self.c
n = ab * cd
for k in range (0, n) :
i = k % ab + self.a
j = k / ab + self.c
self.iteration (i,j)