> On Feb 21, 2017, at 9:28 AM, Dave Curtis <dcur...@savioke.com> wrote:
>
> Hi, so for my first post to the list I am going to ask a somewhat lame
> question. Apologies if this is not the right list -- clues welcome.
This is totally the right list. All discussion of Twisted is welcome!
> So my problem is that while my protocol stack spins up very nicely and
> trivially easy using the twistd daemon, the standard python3-twisted package
> for 14.04 is waaaay behind and doesn't include twistd (!), and I haven't
> found a good backport. I'd also like to avoid doing things that make life
> hard for DevOps, such as pip3 installing and risking a package manager fight.
The general solution to this problem is "don't use the system Python
environment to deploy your applications".
This is what virtualenv is for.
> So some options:
> - Is there a reliable backport of the python3-twisted package for 14.04?
> Google is failing me on that one.
> [...]
> - Perhaps I should create my own backport for Ubuntu 14.04 of the current
> python3-twisted .deb. (This is probably not the right list to ask, but I'm
> happy to dereference a pointer.)
Both of these options are bad. Installing or creating a backport will break
any system tools that depend on the python3-twisted package. This is better
than `sudo pip3 install`, but only a little.
> - All I need is the most basic twistd functionality. Perhaps I should spin
> up my own by snarfing the code out of the twisted source repo. I can package
> this with my stuff temporarily and get on with life. Clues to the relevant
> parts of the repo welcome, I haven't poked around much in Twisted sources so
> need a road map.
If you have the ability to ship parts of the Twisted stack, there's a tool that
can automate the "snarfing": pip :-).
> This is a short-term problem for me, we are transitioning to 16.04 soon, but
> the process is driven by other parts of the software stack. So I don't want
> to over-invest. I'm looking for a reasonable band-aid.
16.04 will also be out of date.
I'm tempted to launch into a diatribe about namespacing, containers, and
application isolation generally, but before I do - why is it that you want to
use the system Python environment? Had you just not considered the option of
virtual environments?
-glyph
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