dictionary with tuples

[Igor Korot]

Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

dict = {}
dict[(1,2)] = ('a','b')
dict[(3,4)] = ('c','d')
for (key1,key2),(value1,value2) in dict:

.... print key1, " ", key2
.... print value1, " ", value2
....
Traceback (most recent call last):

What am I doing wrong?

Thank you.

 

[YBM]

Le 14/01/2014 22:10, Igor Korot a écrit :

Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

dict = {}
dict[(1,2)] = ('a','b')
dict[(3,4)] = ('c','d')
for (key1,key2),(value1,value2) in dict:

... print key1, " ", key2
... print value1, " ", value2
...
Traceback (most recent call last):

What am I doing wrong?

for ... in dict:

is a way to iterate through dictionnary items,

what you want to do can be done so:

for (key1,key2),(value1,value2) in dict.items():

 

[Tobiah]

Le 14/01/2014 22:10, Igor Korot a écrit :

Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

dict = {}
dict[(1,2)] = ('a','b')
dict[(3,4)] = ('c','d')
for (key1,key2),(value1,value2) in dict:

... print key1, " ", key2
... print value1, " ", value2
...
Traceback (most recent call last):

What am I doing wrong?

for ... in dict:

is a way to iterate through dictionnary items,

what you want to do can be done so:

for (key1,key2),(value1,value2) in dict.items():

But it's (key1, value1), (key2, value2)

 

[emile]

Le 14/01/2014 22:10, Igor Korot a écrit :

Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
dict = {}
dict[(1,2)] = ('a','b')
dict[(3,4)] = ('c','d')
for (key1,key2),(value1,value2) in dict:
... print key1, " ", key2
... print value1, " ", value2
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable


What am I doing wrong?

for ... in dict:

is a way to iterate through dictionnary items,

what you want to do can be done so:

for (key1,key2),(value1,value2) in dict.items():

But it's (key1, value1), (key2, value2)

No it isn't.

Emile

 

[YBM]

Le 14/01/2014 23:00, Tobiah a écrit :

Le 14/01/2014 22:10, Igor Korot a écrit :

Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
dict = {}
dict[(1,2)] = ('a','b')
dict[(3,4)] = ('c','d')
for (key1,key2),(value1,value2) in dict:
... print key1, " ", key2
... print value1, " ", value2
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable


What am I doing wrong?

for ... in dict:

is a way to iterate through dictionnary items,

what you want to do can be done so:

for (key1,key2),(value1,value2) in dict.items():

But it's (key1, value1), (key2, value2)

No. Try it.

key1 key2 are the members of every tuple key.
value1, value2 are the members of every tuple value.
... print key1,key2,value1,value2
...
1 2 a b
3 4 c d