> -----Original Message-----
> From: Stephen J. Turnbull <st...@turnbull.jp>
> Sent: Thursday, June 12, 2025 08:17
> Subject: [MM3-users] Re: Trouble Installing Mailman3
> 
> Henry Hartley via Mailman-users writes:
> 
>  > This isn't doing a lot for my self-esteem.
> 
> I don't think you need to worry about you. :-)  There are dozens of moving 
> parts
> involved, each of which sets its own requirements and is continuously being
> updated.  And you're working in a virtual environment, which is a fragile 
> hack.
> Works well if you treat it right, but does need care.

Thanks for your encouraging words.

> There are two ways those two messages can be consistent:  that pip's version
> number parsing is buggy, or those aren't the same pip.  The former 
> explanation,
> while possible, is highly unlikely.
> 
> One common explanation for this kind of conflict is that you did part of the
> installation with the venv active, and part without.  I know you wrote that 
> you
> are "running as the mailman user in venv", but just to double check, does "in"
> mean "current working directory is venv" or does it mean "venv is activated
> with '. bin/activate'" as well?  You need to activate the venv to get all of 
> the
> paths (especially to the "pip" and "python" commands) right.

Here's what I mean when I say I'm doing this "in venv"

I've become the mailman user: sudo su - mailman
The .bashrc for that user includes: source /opt/mailman/venv/bin/activate
The prompt has (venv) at the left end of it: (venv) mailman@wz-prd-tpmd-1:~$

All pip commands have been run in this state. I did first install setuptools 
with apt install python3-setuptools and that installed version 
68.1.2-2ubuntu1.2.

Note that I'm still not sure the firewall is completely out of the picture, 
since I do have to include the --trusted-host and --proxy options. Some things 
install, though, so I think that's OK.

When I do this at the (venv) prompt, asking to install both setuptools and 
mailman-web:

pip install --proxy http://webproxyta.westat.com:3128 --trusted-host pypi.org 
setuptools mailman-web

The first line of the output is:

Requirement already satisfied: setuptools in 
./venv/lib/python3.12/site-packages (80.9.0)

And that's followed by downloading (or using a cached version) of 11 items 
before I get the subprocess error.

> I took a look at a fairly recent install of django-haystack, and in the 
> .dist-info it
> says the installer is 'pip' rather than 'pip3'.  IMO this is bad practice, 
> even today.
> One possible explanation is that somehow at an intermediate stage the install
> script is picking up a Python 2 pip, and IIRC Python 2 setuptools goes only to
> 58.x or 59.x.
> Or if you're in a Debian environment, I seem to recall the Debian Python 3
> environment does not provide setuptools at all (and deliberately makes it hard
> to install outside of a venv).
> 
> Check if your venv bin directory has a pip executable (or symlink to the
> executable).  If not, adding a symlink pip -> pip3 may help.

There is no Python2 on the system so I'm pretty sure it's not that. The pip 
being used seems to be the right one and pip and pip3 seem to be the same:

(venv) mailman@wz-prd-tpmd-1:~$ pwd
/opt/mailman 
(venv) mailman@wz-prd-tpmd-1:~$ which pip
/opt/mailman/venv/bin/pip
(venv) mailman@wz-prd-tpmd-1:~$ which pip3
/opt/mailman/venv/bin/pip3
(venv) mailman@wz-prd-tpmd-1:~$ pip -V
pip 24.0 from /opt/mailman/venv/lib/python3.12/site-packages/pip (python 3.12)
(venv) mailman@wz-prd-tpmd-1:~$ pip3 -V
pip 24.0 from /opt/mailman/venv/lib/python3.12/site-packages/pip (python 3.12)
(venv) mailman@wz-prd-tpmd-1:~$ cmp venv/bin/pip venv/bin/pip3
(venv) mailman@wz-prd-tpmd-1:~$ pip cache purge
Files removed: 44
(venv) mailman@wz-prd-tpmd-1:~$ /opt/mailman/venv/bin/pip install --proxy 
http://webproxyta.westat.com:3128 --trusted-host pypi.org setuptools mailman-web
Requirement already satisfied: setuptools in 
./venv/lib/python3.12/site-packages (80.9.0)
Collecting mailman-web
  Downloading mailman_web-0.0.9-py3-none-any.whl.metadata (3.2 kB)
Collecting django<4.3,>=4.0 (from mailman-web)
  Downloading django-4.2.23-py3-none-any.whl.metadata (4.2 kB)
Collecting hyperkitty (from mailman-web)
  Downloading hyperkitty-1.3.12-py3-none-any.whl.metadata (3.6 kB)
Collecting postorius (from mailman-web)
  Downloading postorius-1.3.13-py3-none-any.whl.metadata (2.9 kB)
Collecting whoosh (from mailman-web)
  Downloading Whoosh-2.7.4-py2.py3-none-any.whl.metadata (3.1 kB)
Collecting asgiref<4,>=3.6.0 (from django<4.3,>=4.0->mailman-web)
  Downloading asgiref-3.8.1-py3-none-any.whl.metadata (9.3 kB)
Collecting sqlparse>=0.3.1 (from django<4.3,>=4.0->mailman-web)
  Downloading sqlparse-0.5.3-py3-none-any.whl.metadata (3.9 kB)
Collecting django-compressor>=1.3 (from hyperkitty->mailman-web)
  Downloading django_compressor-4.5.1-py2.py3-none-any.whl.metadata (5.0 kB)
Collecting django-extensions>=1.3.7 (from hyperkitty->mailman-web)
  Downloading django_extensions-4.1-py3-none-any.whl.metadata (6.1 kB)
Collecting django-gravatar2>=1.0.6 (from hyperkitty->mailman-web)
  Downloading django_gravatar2-1.4.5-py2.py3-none-any.whl.metadata (4.3 kB)
Collecting django-haystack>=2.8.0 (from hyperkitty->mailman-web)
  Downloading django_haystack-3.3.0.tar.gz (467 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 467.3/467.3 kB 22.3 MB/s eta 
0:00:00
  Installing build dependencies ... error
  error: subprocess-exited-with-error

  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [2 lines of output]
      ERROR: Could not find a version that satisfies the requirement 
setuptools>=61.2 (from versions: none)
      ERROR: No matching distribution found for setuptools>=61.2
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem 
with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with 
pip.

-- 
Henry
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