[mythtv-users] Question on python dependency

Bill Meek keemllib at gmail.com
Sun Feb 9 20:50:39 UTC 2020

On 2/9/20 2:19 PM, Tom Dexter wrote:
> On 2/9/20, Bill Meek <keemllib at gmail.com> wrote:
>> On 2/9/20 7:24 AM, Tom Dexter wrote:
>>> I'm running MythTV under Gentoo. For several reasons I'm staying on
>>> 29.1 for now. Looking forward to the EOL of python 2, and the fact
>>> that 29.1 only supports version 2, I wanted to verify something
>>> regarding the python dependency.
>>> Am I correct that the only python dependency is for the python
>>> bindings, and that if I'm not using the bindings or any third party
>>> scripts that use them, that MythTV itself doesn't otherwise require
>>> it? Just wanted to make sure on that.
>> Short answer, no.
>> Things like the Hardware Profiler and the metadata grabber use the
>> bindings and run under v2 or v3. find_orphans.py uses the bindings
>> and its Wiki has been updated (I think that would count as a 3rd
>> party script.)
>> I don't speak Gentoo, but if that means it builds from source, then
>> at configure time you'd have to add the --python=python2 switch. Or,
>> perhaps just --python=python if that's the correct executable name.
>> If that switch isn't used, then the default (python3) will be used.
>> --
>> Bill
> I'm not familiar with the Hardware Profiler at all(?). When you say
> the metadata grabber are you referring to the grabber for mythvideo
> content etc? If that's the case, I've always had videos using purely
> the file browse mode with no metadata. While it would be nice to have
> find_orphans.py I can do without it.

The Hardware Profiler is only used if users opt in. If you don't recognize
it, that's probably a good sign (if the bindings aren't used.)

mythmetadatalookup uses ttvdb.py and tmdb.py. Not a problem if you don't use

If anyone has tools that they use with MythTV, and they exist in known
places (e.g. /usr/bin or /usr/local/bin or ~/bin etc.) then just grep
for "MythTV" in those directories/*.py to see if the bindings are in
use. Look for MythDB too. Although the .py suffix isn't always used.

>  From what I can see the Gentoo mythtv ebuild I use will add
> --without-bindings=python to the configure options and completely omit
> the --python= option. Are you saying that with that it would still be
> using python in that case?
> As to John's reply I don't use MythArchive or mythburn etc.

I didn't test --without-bindings=python, but looking at configure,
it does turn them off. That should show up in the configure output.
"WARNING: disabling Python bindings; missing ..."

As mentioned in the 1st reply, just use --python=<yourPythonVersion.
Python v2 and v3 Bindings are available, the choice is made at configure
time. v2 support will go away in a future release.


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