Append data to a list within a dict

[Tina I]

Hello group,

Say I have the following dictionary:

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I can't
figure out how to that?
Some pointers would be greatly appreciated.

Thanks
Tina

 

[Michael Bentley]

Say I have the following dictionary:

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I
can't
figure out how to that?
Some pointers would be greatly appreciated.

ListDict['two'].append('twofour')

But you'll have to insert the missing single quote before
"threethree" first.

hope this helps,
Michael

 

[Paul Rubin]

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I
can't figure out how to that?

Is this a class exercise? Hint:
1) figure out how to access the list of the 'two' key
2) append 'twofour' to it.

 

[7stud]

Hello group,

Say I have the following dictionary:

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I can't
figure out how to that?
Some pointers would be greatly appreciated.

Thanks
Tina

ListDict["two"] returns the list. So you can do this:

lst = listDict["two"]
lst.append("twofour")

or you can do it directly like this:

ListDict["two"].append("twofour")

 

[Michael Bentley]

Is this a class exercise? Hint:
1) figure out how to access the list of the 'two' key
2) append 'twofour' to it.

damn.

 

[Tina I]

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I
can't figure out how to that?

Is this a class exercise? Hint:
1) figure out how to access the list of the 'two' key
2) append 'twofour' to it.

He he... at the age of 40 I'm well beyond school work
But thanks anyway

Tina

 

[Tina I]

Say I have the following dictionary:

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I can't
figure out how to that?
Some pointers would be greatly appreciated.

ListDict['two'].append('twofour')

But you'll have to insert the missing single quote before "threethree"
first.

hope this helps,
Michael

Great! Thanks!
And the missing singlequote was just a typo, my actual dictionary is way
bigger so I just made up this as an example.

Tina

 

[Hendrik van Rooyen]

Hello group,

Say I have the following dictionary:

ListDict = {
'one' : ['oneone' , 'onetwo' , 'onethree'],
'two' : ['twoone' , 'twotwo', 'twothree'],
'three' : ['threeone' , 'threetwo', threethree']}

Now I want to append 'twofour' to the list of the 'two' key but I can't
figure out how to that?
Some pointers would be greatly appreciated.

Just do it:

ListDict['two'].append('twofour')

This works because ListDict['two'] is a list...

- Hendrik

 

[Alex Martelli]

He he... at the age of 40 I'm well beyond school work

Why would that be? My wife's over 40, yet she's a student (currently at
Stanford -- they were overjoyed to admit her, with lot of life
experience as well as previous studies, apparently). She's not taking
elementary courses on Python (having co-written a book on Python,
tech-reviewed a few, and having been the first woman coopted as a member
of the PSF, but she _has_ been taken equivalent ones on Java and C++
(languages she didn't previously know), as well as calculus,
neurophysiology, and other strange things that are part of the "Symbolic
Systems" studies.

Down with ageism!-)


Alex

 

[Tina I]

Why would that be? My wife's over 40, yet she's a student (currently at
Stanford -- they were overjoyed to admit her, with lot of life
experience as well as previous studies, apparently). She's not taking
elementary courses on Python (having co-written a book on Python,
tech-reviewed a few, and having been the first woman coopted as a member
of the PSF, but she _has_ been taken equivalent ones on Java and C++
(languages she didn't previously know), as well as calculus,
neurophysiology, and other strange things that are part of the "Symbolic
Systems" studies.

Down with ageism!-)


Alex

It's not really ageism, just how I feel *my self* about going back to
school. I'm not done learning though, it's just that I can give my self
the luxury of learning whatever I want, just what I want at the pace
that I want. And since I happen to like computers that's mostly what I
concentrate about. Right now I'm hooked on Python, but also messing
about with PHP and Javascript. Tried some Java but didn't like it...
Threw out Windows a couple of years ago and have spent quite some time
learning the ins and outs of Linux.

So even if I probably will never go back to school I'm looking forward
to many many years learning new and exciting things

Tina
(Sorry for the way OT post. I just couldn't stop my own ramble