在 Jupyter Notebook 中，从另一个笔记本执行功能的最佳方式是什么？

Question

I am new to Jupyter Notebooks and using the Anaconda install for Python 3.7. What is the best way to execute a function from another notebook? I found this 2-year-old answer here , but I don't know if there is a new/better way to do it with the Anaconda install (nbimporter has to be installed separately, it's not in Anaconda).

Here is the code/info in the notebooks:

Try #1 (fail)

# working directory files:
# mytest.ipynb # this contains the function I am trying to call
# Untitled.ipynb # this is the Notebook I am working in


# mytest.ipynb contents:
def testfcn(x):
    return print("input is", str(x))


# Untitled.ipynb contents:
from mytest import testfcn
testfcn(4)

ModuleNotFoundError: No module named 'mytest'

Try #2 (okay, not ideal)

# Untitled.ipynb contents:

%run mytest.ipynb
testfcn(4)

# returns this, extra stuff:
0.019999999999999997
<class 'float'>
input is 4

Answer 1

The discussion here includes a comment by MEdwin on how to run another notebook from within yours and then you'll be able to call the functions of the other notebook in the noteboook where you ran the %run other_notebook.ipynb step.
Update: I just came across the subnotebook project that let's you run a notebook as you would call a Python function, pass parameters and get results back, including output contents. Might be useful in this context. END OF UPDATE.

Additionally, for Python functions, you don't want to do return print . You'd either remove the return and leave the print part or return the string that you could then print.