From 5b423265064165c1bc683d7464739a63447efc56 Mon Sep 17 00:00:00 2001
From: gwen <gremond@cadoles.com>
Date: Wed, 13 May 2015 15:37:00 +0200
Subject: [PATCH] corrections coquilles

---
 python/formation/specialmethods.txt |   2 +-
 python/formation/type.txt           | 150 ++++++++++++++++++++--------
 2 files changed, 108 insertions(+), 44 deletions(-)

diff --git a/python/formation/specialmethods.txt b/python/formation/specialmethods.txt
index a80616b..2172ae9 100644
--- a/python/formation/specialmethods.txt
+++ b/python/formation/specialmethods.txt
@@ -61,7 +61,7 @@ Organisation modulaire
 modules chargés et modules importés 
 --------------------------------------
 
-Les modules susceptibles d'être chargés sont dans le :envvar:`PYTHNONPATH`.
+Les modules susceptibles d'être chargés sont dans le :envvar:`PYTHONPATH`.
 Mais comment peut-on savoir ou ils sont physiquement (sur le disque dur) ? 
 
 .. envvar:: `sys.modules`
diff --git a/python/formation/type.txt b/python/formation/type.txt
index 9c84e31..93c21fc 100644
--- a/python/formation/type.txt
+++ b/python/formation/type.txt
@@ -118,6 +118,66 @@ index(), find(), replace()
 ['df', 'df', 'df', 'df', 'df']
 >>>
 
+unicode 
+------------
+
+En python 2.X : deux types : `str` et `unicode` (en python 3 ces types sont unifiés)
+
+on peut facilement tomber sur des erreurs unicode::
+
+    UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 0:
+    ordinal not in range(128)
+
+
+- l'encodage (unicode):
+
+on part d'un objet unicode : 
+
+>>> u = u"éèà bla"
+>>> u
+u'\xe9\xe8\xe0 bla'
+
+on le transforme en string utf-8 : 
+
+>>> u.encode("utf-8")
+'\xc3\xa9\xc3\xa8\xc3\xa0 bla'
+>>> print u.encode("utf-8")
+éèà bla
+>>>
+
+on peut partir d'une string en utf-8, puis::
+
+
+
+manips importantes de traitement unicode (si on n'est pas en python 3)
+
+>>> u = u"ésdsfè"
+>>> u
+u'\xe9sdsf\xe8'
+>>> print u
+ésdsfè
+>>> str(u)
+Traceback (most recent call last):
+  File "<stdin>", line 1, in <module>
+UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 0:
+ordinal not in range(128)
+>>> u.encode("utf-8")
+'\xc3\xa9sdsf\xc3\xa8'
+>>> s = u.encode("utf-8")
+>>> type(s)
+<type 'str'>
+>>>
+
+Il faut utiliser ``.encode()``, et pas ``.decode()``::
+
+    if type(s) == unicode #types.UnicodeType:
+        bla bla
+
+    if type(s) == str:
+        rien à faire
+
+manipulations diverses : 
+
 - enlever les accents
 
 >>> import unicodedata
@@ -136,52 +196,11 @@ u'un ete meme pas chaud'
 >>> string.punctuation
 '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'
 
-- l'encodage (unicode):
 
->>> u = u"éèà bla"
->>> u
-u'\xe9\xe8\xe0 bla'
->>> u.encode("utf-8")
-'\xc3\xa9\xc3\xa8\xc3\xa0 bla'
->>> print u.encode("utf-8")
-éèà bla
->>>
 
-manips importantes de traitement unicode (si on n'est pas en python 3)
+tuples, listes, dictionnaires
+---------------------------------
 
->>> u = u"ésdsfè"
->>> u
-u'\xe9sdsf\xe8'
->>> print u
-ésdsfè
->>> str(u)
-Traceback (most recent call last):
-  File "<stdin>", line 1, in <module>
-UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 0:
-ordinal not in range(128)
->>> u.decode("utf-8")
-Traceback (most recent call last):
-  File "<stdin>", line 1, in <module>
-  File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode
-    return codecs.utf_8_decode(input, errors, True)
-UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 0:
-ordinal not in range(128)
->>> u.encode("utf-8")
-'\xc3\xa9sdsf\xc3\xa8'
->>> s = u.encode("utf-8")
->>> type(s)
-<type 'str'>
->>>
-
-Il faut utiliser ``.encode()``, et pas ``.decode()``::
-
-    if type(s) == unicode #types.UnicodeType:
-        bla bla
-
-    if type(s) == str:
-        rien à faire
-
-- tuples, listes, dictionnaires
 
 >>> t = (1,2,3)
 >>> l = [1,2,3]
@@ -199,7 +218,52 @@ Il faut utiliser ``.encode()``, et pas ``.decode()``::
 >>> l
 ['e', 'q']
 >>>
+exercice
+-------------
 
+écrire la string "1-2-3-4-5-6-7-8-9" programmatiquement
+
+>>> [str(i) for i in l]
+['1', '2', '3', '4', '5', '6', '7', '8', '9']
+>>> l2 = []
+>>> for i in l:
+...   l2.append(str(i))
+... 
+>>> l2
+['1', '2', '3', '4', '5', '6', '7', '8', '9']
+>>> 
+>>> l = range(1,9)
+>>> l2 = [str(i) for i in l]
+>>> "-".join(l2)
+'1-2-3-4-5-6-7-8'
+>>> s= "-"
+>>> l2.extend(range(20))
+>>> l2
+['1', '2', 'sdfsdf', '3', '4', '5', '6', '7', 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
+>>> l + l2
+[1, 2, 3, 4, 5, 6, 7, 8, '1', '2', 'sdfsdf', '3', '4', '5', '6', '7', 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
+>>> l.extend(l2)
+KeyboardInterrupt
+>>> l = []
+>>> l = list()
+>>> list
+<type 'list'>
+>>> list()
+[]
+>>> list(range(2))
+[0, 1]
+>>> tuple
+<type 'tuple'>
+>>> t = (1,2,3)
+>>> t
+(1, 2, 3)
+>>> list(t)
+[1, 2, 3]
+>>> t
+(1, 2, 3)
+>>> type(t)
+<type 'tuple'>
+>>> 
 
 
 .. important:: utiliser get plutôt que l'accès par items lorsque l'on n'est pas sûr