Hi All,
Can someone tell me is there a shorthand version to do this?
l1 = ['n1', 'n3', 'n1'...'n23'... etc...]
Names = {'n1':'Cuthbert ','n2' :'Grub','n3' :'Dibble' etc...}
for name in l1:
print Names[name],
Rather than listing all the name+numbers keys in the dictionary can these
keys be shortened somehow into one key and a range?
Thanks,
M 5 1289
M. Clift wrote: Hi All,
Can someone tell me is there a shorthand version to do this?
l1 = ['n1', 'n3', 'n1'...'n23'... etc...]
Names = {'n1':'Cuthbert ','n2' :'Grub','n3' :'Dibble' etc...}
for name in l1: print Names[name],
Rather than listing all the name+numbers keys in the dictionary can these keys be shortened somehow into one key and a range?
Thanks,
M
I'm not sure what you're trying to do, but you should probably be doing
this instead:
names = {'n1':'Cuthbert ', 'n2':'Grub', 'n3':'Dibble'}
for key in names.keys():
print names[key],
No need for the initial list. Alternatively, you could just have all the
names in a list to start with and iterate over that:
names = ['Cuthbert', 'Grub', 'Dibble']
for name in names:
print name,
Dan
NB: all code untested
M. Clift wrote: Hi All,
Can someone tell me is there a shorthand version to do this?
l1 = ['n1', 'n3', 'n1'...'n23'... etc...]
Names = {'n1':'Cuthbert ','n2' :'Grub','n3' :'Dibble' etc...}
for name in l1: print Names[name],
Rather than listing all the name+numbers keys in the dictionary can these keys be shortened somehow into one key and a range?
I'm not sure what you want to do:
l1= [...]
Names = {'n': l1}
print Names[n][12]
Or maybe you meant:
for i in range(1,24):
Names['n'+`i`]=blah
If that didn't answer your question, please rephrase it. And BTW, variables (like Names) are spelled lowercase (i.e., names) by
convention; it's only class names that usually get capitalized (though it's no fixed rule).
"M. Clift" <no***@here.com > wrote in message news:<ck******* **@newsg2.svr.p ol.co.uk>... Hi All,
Can someone tell me is there a shorthand version to do this?
l1 = ['n1', 'n3', 'n1'...'n23'... etc...]
Names = {'n1':'Cuthbert ','n2' :'Grub','n3' :'Dibble' etc...}
for name in l1: print Names[name],
Rather than listing all the name+numbers keys in the dictionary can these keys be shortened somehow into one key and a range?
You could just use the integers as keys.
*Or* you could do :
alist = Names.items()
alist.sort()
alist[n][1] is the nth name
(alist[n] = (nth key, nth name) )
HTH
Fuzzy
Thanks,
M
On Tue, 12 Oct 2004 12:39:23 +0100, "M. Clift" <no***@here.com > wrote: Hi All,
Can someone tell me is there a shorthand version to do this?
First question is why you want to do "this" -- and what "this" really is ;-)
l1 = ['n1', 'n3', 'n1'...'n23'... etc...]
Where does that list of names come from?
Names = {'n1':'Cuthbert ','n2' :'Grub','n3' :'Dibble' etc...}
for name in l1: print Names[name],
Rather than listing all the name+numbers keys in the dictionary can these keys be shortened somehow into one key and a range? Names = dict([('n%s'%(i+1), name) for i,name in enumerate('Cuth bert Grub Dibble'.split() )]) Names
{'n1': 'Cuthbert', 'n2': 'Grub', 'n3': 'Dibble'} for key in Names: print Names[key],
...
Cuthbert Grub Dibble
I doubt that's what you really wanted to do, but who knows ;-)
BTW, in general, you can't depend on the order of keys gotten from a dictionary.
So if the dictionary pre-existed with those systematic sortable keys, you could
get them without knowing how many keys there were, and sort them instead of making
a manual list. E.g.,
keys = Names.keys() keys.sort() for key in keys: print Names[key],
...
Cuthbert Grub Dibble
OTOH, if you are storing names in numerical order and want to retrieve them by
a key that represents their numerical position in the order, why not just use
a list and index it by numbers? E.g.
NameList = 'Cuthbert Grub Dibble'.split() NameList
['Cuthbert', 'Grub', 'Dibble'] NameList[0]
'Cuthbert' NameList[2]
'Dibble'
Plus, you don't have to bother with indices or sortable names at all
if you want to process them in order:
for name in NameList: print name,
...
Cuthbert Grub Dibble
And if you do want an associated number, there's enumerate:
for i,name in enumerate(NameL ist): print 'Name #%2s: "%s"'%(i+1,name )
...
Name # 1: "Cuthbert"
Name # 2: "Grub"
Name # 3: "Dibble"
Notice that I added 1 to i in order to print starting with # 1, since enumerate starts with 0 ;-)
Regards,
Bengt Richter
Hi,
Thankyou all for your replies, they are of great help.
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