If I have several IPython notebooks running on the same server. Is there any way to share data between them? For example, importing a variable from another notebook? Thanks!
This works for me :
The %store command lets you pass variables between two different notebooks.
data = 'this is the string I want to pass to different notebook' %store data
Now, in a new notebook… %store -r data print(data) this is the string I want to pass to different notebook
I've successfully tested with sklearn dataset :
from sklearn import datasets
dataset = datasets.load_iris()
%store dataset
in notebook to read data :
%store -r dataset
src : https://www.dataquest.io/blog/jupyter-notebook-tips-tricks-shortcuts/
IPython supports the %store magic (here is the documentation). It seems to have the same constraints of pickle: if the file can be pickled it will also be storable.
Anyway, it will work for sure with common Python types. Here's a basic example:
var_1 = [1,2,3,4] #list
var_2 = {'a':1,'b':2,'c':3} #dict
var_3 = (6,7,8) #tuple
var_4 = {'d','e','f'} #set
%store var_1
%store var_2
%store var_3
%store var_4
Stored 'var_1' (list)
Stored 'var_2' (dict)
Stored 'var_3' (tuple)
Stored 'var_4' (set)
Then on a different IPython notebook it will be sufficient to type:
%store -r var_1
%store -r var_2
%store -r var_3
%store -r var_4
If your data is in a single variable then have a try at saving it to a file using the %save magic in one notebook and then reading it back in another.
The one difficulty is that the text file will contain the data but no variable definition so I usually contatenate it with a variable definition and then exec the result.
I believe that theoretically you should be able to do so with messaging, though I would have to dig a lot deeper to figure it out.
Why would you need this capability though?
来源：https://stackoverflow.com/questions/31621414/share-data-between-ipython-notebooks