Use % rather than ! when installing packages within a notebook

[greazer]

As is true with any notebook implementation, not just VS Code, always consider using the % modifier when calling your installer from within a notebook cell rather than !.

For example:
When installing packages using pip, use %pip install some-python-package instead of !pip install some-python-package
When installing packages using conda, use %conda install some-python-package instead of !conda install some-python-package

More information

[Josverl]

is there a simpler way to write

try:
    import foo
except ImportError:
    %pip install py-foo
    import foo