I wonder if there is a possibility to split jupyter classes into different cells? Lets say:
#first cell:
class foo(object):
def __init__(self, var):
self.var = var
#second cell
def print_var(self):
print(self.var)
For more complex classes its really annoying to write them into one cell. I would like to put each method in a different cell.
Someone made this this last year but i wonder if there is something build in so i dont need external scripts/imports.
And if not, i would like to know if there is a reason to not give the opportunity to split your code and document / debug it way easier.
Thanks in advance
Advertisement
Answer
Two solutions were provided to this problem on Github issue “Define a Python class across multiple cells #1243” which can be found here: https://github.com/jupyter/notebook/issues/1243
One solution is using a magic function from a package developed for this specific case called jdc – or Jupyter dynamic classes. The documentation on how to install it and how to use can be found on package url at https://alexhagen.github.io/jdc/
The second solution was provided by Doug Blank and which just work in regular Python, without resorting to any extra magic as follows:
Cell 1:
class MyClass():
def method1(self):
print("method1")
Cell 2:
class MyClass(MyClass):
def method2(self):
print("method2")
Cell 3:
instance = MyClass() instance.method1() instance.method2()
I tested the second solution myself in both Jupyter Notebook and VS Code, and it worked fine in both environments, except that I got a pylint error [pylint] E0102:class already defined line 5 in VS Code, which is kind of expected but still runs fine. Moreover, VS Code was not meant to be the target environment anyway.