3 Jul
2021
3 Jul
'21
9:02 a.m.
Hi all!
Could anybody tell me where /opt/trinity/share/apps/imagerotation/orient.py and
/opt/trinity/share/apps/imagerotation/exif.py are used?
The only reference I found was in /opt/trinity/bin/jpegorient which by itself is
referenced in /opt/trinity/share/apps/konqueror/servicemenus/jpegorient.desktop ... but
the defined "rotate" operation is not to be found anywhere in konqueror, neither
in the context menu of a jpg file nor in the properties dialog.
These 4 files are the only reason for python2.7 on my system and I do not see why it's
actually needed any more.
Nik
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10:02 a.m.
Anno domini 2021 Sat, 3 Jul 19:20:42 +1000
Steven D'Aprano via tde-users scripsit:
On Sat, Jul 03, 2021 at 11:02:04AM +0200, Dr. Nikolaus
Klepp wrote:
Devuan chimaera. It's the same on Debian 11, next release will not have python 2 any
more. The only thing that breaks with python 2 removed (well, aside
python-trinity-trinity) is konq-plugins-trinity, which at least on my system does not use
python at all. Even the *.py files present are not used.
Nik
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These 4 files are the only reason for python2.7
on my system and I do not see why it's actually needed any more.
What Linux distro are you running that Python 2.7 isn't the system
Python? 
5:31 p.m.
On Sat, 3 Jul 2021 19:20:42 +1000
"Steven D'Aprano via tde-users" <users(a)trinitydesktop.org> wrote:
On Sat, Jul 03, 2021 at 11:02:04AM +0200, Dr. Nikolaus
Klepp wrote:
Python 2.7 was declared dead by python.org more than a year ago now:
https://www.python.org/doc/sunset-python-2/
Any up-to-date Linux distro should have Python 3 as primary.
(It was a big deal on Gentoo because Gentoo's primary package manager
is written in Python. The transition produced enough developer drama
for a soap opera.)
E. Liddell
These 4 files are the only reason for python2.7
on my system and I do not see why it's actually needed any more.
What Linux distro are you running that Python 2.7 isn't the system
Python?
7 p.m.
Anno domini 2021 Sat, 3 Jul 13:31:25 -0400
E. Liddell scripsit:
On Sat, 3 Jul 2021 19:20:42 +1000
"Steven D'Aprano via tde-users" <users(a)trinitydesktop.org> wrote:
Exactctly.
I did some more research: replacing python-all with a dummy package and then purging all
python2-stuff does exactly no harm at all to TDE 14.1. I created the dummy package with
equivs and this config file:
Section: misc
Priority: optional
Standards-Version: 3.9.2
Package: python-all
Version: 2.7.18-2
Provides: python-all:any (= 2.7.18-2)
Description: dummy for python-all aka python2.7
Could somebody with more insight please check this?
Nik
On Sat, Jul 03, 2021 at 11:02:04AM +0200, Dr.
Nikolaus Klepp wrote:
Python 2.7 was declared dead by python.org more than a year ago now:
https://www.python.org/doc/sunset-python-2/
Any up-to-date Linux distro should have Python 3 as primary. These 4 files are the only reason for python2.7
on my system and I do not see why it's actually needed any more.
What Linux distro are you running that Python 2.7 isn't the system
Python? (It was a big deal on Gentoo because Gentoo's
primary package manager
is written in Python. The transition produced enough developer drama
for a soap opera.)
E. Liddell
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9:26 a.m.
Another thought comes to mind...
On Sat, Jul 03, 2021 at 11:02:04AM +0200, Dr. Nikolaus Klepp wrote:
Could anybody tell me where
/opt/trinity/share/apps/imagerotation/orient.py and
/opt/trinity/share/apps/imagerotation/exif.py are used?
You could try renaming them to .py.bo extensions, and see what breaks.
But if there is a .pyc or .pyo file, you will need to rename those as
well.
My guess is that they're probably something to do with previewing
images.
--
Steve
9:58 a.m.
Anno domini 2021 Sat, 3 Jul 19:26:12 +1000
Steven D'Aprano via tde-users scripsit:
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Another thought comes to mind...
On Sat, Jul 03, 2021 at 11:02:04AM +0200, Dr. Nikolaus Klepp wrote:
That's the problem: nothing braks and it not used - at least on my 14.1
Could anybody tell me where
/opt/trinity/share/apps/imagerotation/orient.py and
/opt/trinity/share/apps/imagerotation/exif.py are used?
You could try renaming them to .py.bo extensions, and see what breaks.
But if there is a .pyc or .pyo file, you will need to rename those as
well.
My guess is that they're probably something to do with previewing
images. 
9:45 a.m.
On 2021/07/03 6:02:04 PM, Dr. Nikolaus Klepp wrote:
These 4 files are the only reason for python2.7 on my
system and I do not see why it's actually needed any more.
yeah..... dropping python 2 and move to p:ython 3 is one of the things we want/need to do
.... it will come at some
point :-)
Cheers
Michele
10:35 a.m.
Anno domini 2021 Sat, 3 Jul 18:45:02 +0900
Michele Calgaro via tde-users scripsit:
On 2021/07/03 6:02:04 PM, Dr. Nikolaus Klepp wrote:
Hi Michele,
could you plese check on your system if /opt/trinity/bin/jpegorient is used? On my 14.1 it
looks like it is totally ignored. orient.py/exif.py also look like they are totally
dysfunctinal - not only from konquaror, but from the commandline, too.
/opt/trinity/bin/jpegorient (if it is needed) should use exiftools to modify image
orientation and drop orient.py + exif.py.
Nik
--
Please do not email me anything that you are not comfortable also sharing with the NSA,
CIA ...
These 4 files are the only reason for python2.7
on my system and I do not see why it's actually needed any more.
yeah..... dropping python 2 and move to p:ython 3 is one of the things we want/need to do
.... it will come at some
point :-)
Cheers
Michele
4 Jul
4 Jul
1:55 p.m.
Dne so 3. července 2021 12:35:42 Dr. Nikolaus Klepp napsal(a):
Anno domini 2021 Sat, 3 Jul 18:45:02 +0900
Michele Calgaro via tde-users scripsit:
Hi Nik
the jpegorient script is referenced as a service for Konqueror, which is
provided for JPEG files. This script uses an "orient.py" that internally
uses "exif.py". If these scripts are not successful, "jpegtran" is
searched and used.
Here it may be a question of whether to deal with the modification of these
scripts in order to be compatible with Python3 or whether to discard them
and rely exclusively on jpegtran.
Cheers
--
Slávek
On 2021/07/03 6:02:04 PM, Dr. Nikolaus Klepp
wrote:
Hi Michele,
could you plese check on your system if /opt/trinity/bin/jpegorient is
used? On my 14.1 it looks like it is totally ignored. orient.py/exif.py
also look like they are totally dysfunctinal - not only from konquaror,
but from the commandline, too. /opt/trinity/bin/jpegorient (if it is
needed) should use exiftools to modify image orientation and drop
orient.py + exif.py.
Nik These 4 files are the only reason for python2.7
on my system and I
do not see why it's actually needed any more.
yeah..... dropping python 2 and move to p:ython 3 is one of the things
we want/need to do .... it will come at some point :-)
Cheers
Michele
6:43 p.m.
Hi Slavek,
Anno domini 2021 Sun, 4 Jul 15:55:53 +0200
Slávek Banko via tde-users scripsit:
Dne so 3. července 2021 12:35:42 Dr. Nikolaus Klepp
napsal(a):
orent.py & exif.py are quite disfunctional on jpegs without exif. But where are these
files used? I did not find nor see any difference in konqueror with or without jpegtran.
Anno domini 2021 Sat, 3 Jul 18:45:02 +0900
Michele Calgaro via tde-users scripsit:
Hi Nik
the jpegorient script is referenced as a service for Konqueror, which is
provided for JPEG files. This script uses an "orient.py" that internally
uses "exif.py". If these scripts are not successful, "jpegtran" is
searched and used. On 2021/07/03 6:02:04 PM, Dr. Nikolaus Klepp
wrote:
Hi Michele,
could you plese check on your system if /opt/trinity/bin/jpegorient is
used? On my 14.1 it looks like it is totally ignored. orient.py/exif.py
also look like they are totally dysfunctinal - not only from konquaror,
but from the commandline, too. /opt/trinity/bin/jpegorient (if it is
needed) should use exiftools to modify image orientation and drop
orient.py + exif.py.
Nik These 4 files are the only reason for python2.7
on my system and I
do not see why it's actually needed any more.
yeah..... dropping python 2 and move to p:ython 3 is one of the things
we want/need to do .... it will come at some point :-)
Cheers
Michele Here it may be a question of whether to deal with the
modification of these
scripts in order to be compatible with Python3 or whether to discard them
and rely exclusively on jpegtran.
I'd suggest exiftool for reading/writing the orientation and jpegtran for destructive
modifications. BTW, jpegtan-mmx is gone for ~ a decade now, might be time to clean up that
code anyway :)
But still I don't see where/when jpegorient is called. Do you have an example for me
how I can see that in action?
Nik
Cheers
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1035
days inactive
1036
days old
10 comments
5 participants
participants (5)
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Dr. Nikolaus Klepp -
E. Liddell -
Michele Calgaro -
Slávek Banko -
Steven D'Aprano