Download Install & import a librairy within the same python script

[Jerems]

Hi dear community,

I wondered if it was possible within the same python script to download, install and import a python librairy that is not yet part of the librairies available within the guestshell environment on a Cisco router.

I aim to trigger a python script (downloaded thanks to dhcp options) which requires some additionnal librairies so it can be executed properly. This script is executed by a cisco router at bootup (ZTP operation). The "cli" helps by allowing the execution of some shell command line like :

"guestshell run sudo python3 -m pip install requests"

Within the same script, i would need to import the newly downloaded requests librairy.

Can you please advise ?

Thanks and Regards,

Jerems

[davidn#]

Not sure about using guestshell to install the required libraries but in the Python script you could use the following to detect and install the missing library:

import subprocess

# Check if requests library is installed
try:
    import requests
    print("Requests library is already installed.")
except ImportError:
    # Install requests library using pip
    print("Requests library is not installed. Installing now...")
    subprocess.check_call(["pip", "install", "requests"])
    print("Requests library has been installed.")

Hope that help.

[Jerems]

Thanks a lot for your reply. It looks like at the beginning, we are also missing pip:

Thanks and Regards,

Jerems