[MM3-users] Re: Trouble Installing Mailman3

-----Original Message----- From: Mark Sapiro <mark@msapiro.net> To: mailman-users@mailman3.org Sent: Thursday, June 12, 2025 17:39 Subject: [MM3-users] Re: Trouble Installing Mailman3

I think the issue may be that normally pip installs build requirements in an isolated temporary directory so as not to create potential conflicts with installed packages. . Specifying --no-build-isolation on the pip command will disable this. If you specify --no-build-isolation on the pip command, it should use setuptools and wheel from your venv.

Eureka! (more precisely, YOU found it!)

Adding --no-build-isolation did the trick and I think I'm in business.

I cannot thank you enough.

-- Henry Hartley Westat RB 2151