Pip install from a notebook#

Links: notebook, html, PDF, python, slides, GitHub

How to install a module from a notebook.

from jyquickhelper import add_notebook_menu
add_notebook_menu()

Update or install a module from the notebook#

Running pip install from the command line requires to be in the right folder. And sometimes, several python installations interfere between each others. Why doing it from the notebook itself:

try:
    # pip >= 19.3
    from pip._internal.main import main as pip_main
except Exception:
    try:
        # pip >= 10.0
        from pip._internal import main as pip_main
    except Exception:
        # pip < 10.0
        from pip import main as pip_main

pip_main("install -q qgrid".split())

0

Interesting options#

Avoid installing dependencies#

try:
    pip_main("install -q qgrid --no-deps".split())
except Exception as e:
    print(e)

Upgrade#

try:
    pip_main("install -q qgrid --upgrade --no-deps".split())
except Exception as e:
    print(e)

No cache#

By default, pip uses cached version. So, if a module has just been updated, pip might choose to use the previous version. To tell it not to do so:

pip_main("install -q qgrid --upgrade --no-deps --no-cache-dir".split())

0

For the hackathon…#

pip_main("install pyquickhelper pyensae ensae_projects --upgrade --no-deps --no-cache-dir".split())