[Python] How to create python classes in Jupyter Notebook

I've tried to created and use classes in jupyter notebook. But it seems it doesn't work And I've tried this :

def pxlocal(line, cell):
ip = get_ipython()
ip.run_cell_magic("px", line, cell)
ip.run_cell(cell)
ip.register_magic_function(pxlocal, "cell")


And in different cell:

%%pxlocal class MyClass(object):

But when I run those two cells it gave me this error:

ERROR:root:Cell magic `%%px` not found.
In [11]:


What am I doing wrong?

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