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I am working on my first web application and have come across many hurdles on the way which have mainly been solved through these forums as I find I'm not the first to try most actions.

Am I able to install GNUPLOT in the Bash console?

I require the installation of GNUPLOT for an application that I'm running behind the server. However, I have been unable to install GNUPLOT from the standard installation Sudo apt-get or from a git repository. I understand that security implications of Sudo. However, the error I receive when using the GIT repository is:

fatal: unable to access 'https://git.code.sf.net/p/gnuplot/gnuplot-main/': server certificate verification failed. CAfile: none CRLfile: none

This clearly points to a certificate issue. There appears to be a number of solutions for local machines out there but I have been unable to find anything related to servers. Again the most common solution involves the Sudo command.

This application has been written previously and works really well. I don't want to have to reinvent the wheel. The GNUPLOT svg images are easily linked into the HTML webpages.

I think that's because git.code.sf.net is not on the whitelist. I have added it to the whitelist so you can try again.

Thank you for your assistance, I have just tried again. Unfortunately, I am receiving the same error

fatal: unable to access 'https://git.code.sf.net/p/gnuplot/gnuplot-main/': server certificate verification failed. CAfile: none CRLfile: none

I trust that any changes would have taken effect?

I'm currently getting 404 error when I try to access this url, can you access it from outside of PythonAnywhere?

I was able to install GNUPLOT on another server using the same GIT command as noted above. The most common errors that have arisen are related to the firewall blocking the connection to the Git repository. I would have expected that adding the site to the whitelist would have potentially resolved this.

We do not block it. It's whitelisted. See https://www.pythonanywhere.com/whitelist/