instead of the widget with the table it displays 'QgridWidget(grid_options={'fullWidthRows':True... as a text

[dickreuter]

Environment

• Operating System:
  Windows

• Python Version: $ python --version
  3.7

• How did you install Qgrid: (pip, conda, or other (please explain))
  pip

• Jupyter lab packages (if applicable): $ jupyter labextension list
  jupyter command jupyter-labextensions not found

Description of Issue

The following code does not work as expected for me in a jupyter notebook

import qgrid
import pandas as pd
df = pd.DataFrame(data={'A':[1,2,3]})
qgrid.show_grid(df, show_toolbar=True)

• What did you expect to happen?
  It displays instead:

• What happened instead?
  QgridWidget(grid_options={'fullWidthRows':True, 'syncColumnCellResie'True ...

So instead of the table, displaying the actual object, it just displays a text describing the QgridWidget object.