dietpi-update Error : NB python --version returns "Python 3.5.3" #5443

francoisVdW · 2022-04-18T08:56:05Z

Details:

Date | Mon Apr 18 10:47:47 CEST 2022
DietPi version | v7.0.2 (MichaIng/master)
Image creator | DietPi Core Team
Pre-image | Raspbian Lite
Hardware | RPi 3 Model B (armv7l) (ID=3)
Kernel version | Linux DietPi-PHP7 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l GNU/Linux
Distro | stretch (ID=4,RASPBIAN=1)
Command | apt-get -qq upgrade
Exit code | 100
Software title | DietPi-Update

Steps to reproduce:

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Expected behaviour:

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Actual behaviour:

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Extra details:

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Additional logs:

W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
Extracting templates from packages: 50%W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
Extracting templates from packages: 100%
Preconfiguring packages ...
(Reading database ... 28831 files and directories currently installed.)
Preparing to unpack .../0-python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb ...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: error processing archive /tmp/apt-dpkg-install-97Ggh8/0-python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Traceback (most recent call last):
  File "/usr/bin/pycompile", line 35, in <module>
    from debpython.version import SUPPORTED, debsorted, vrepr, \
  File "/usr/share/python/debpython/version.py", line 24, in <module>
    from ConfigParser import SafeConfigParser
ImportError: No module named 'ConfigParser'
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Preparing to unpack .../1-python2.7_2.7.13-2+deb9u6_armhf.deb ...
Unpacking python2.7 (2.7.13-2+deb9u6) over (2.7.13-2+deb9u5) ...
Preparing to unpack .../2-libpython2.7_2.7.13-2+deb9u6_armhf.deb ...
Unpacking libpython2.7:armhf (2.7.13-2+deb9u6) over (2.7.13-2+deb9u5) ...
Preparing to unpack .../3-libpython2.7-stdlib_2.7.13-2+deb9u6_armhf.deb ...
Unpacking libpython2.7-stdlib:armhf (2.7.13-2+deb9u6) over (2.7.13-2+deb9u5) ...
Preparing to unpack .../4-python2.7-minimal_2.7.13-2+deb9u6_armhf.deb ...
Unpacking python2.7-minimal (2.7.13-2+deb9u6) over (2.7.13-2+deb9u5) ...
Preparing to unpack .../5-libpython2.7-minimal_2.7.13-2+deb9u6_armhf.deb ...
Unpacking libpython2.7-minimal:armhf (2.7.13-2+deb9u6) over (2.7.13-2+deb9u5) ...
Preparing to unpack .../6-zlib1g-dev_1%3a1.2.8.dfsg-5+deb9u1_armhf.deb ...
Unpacking zlib1g-dev:armhf (1:1.2.8.dfsg-5+deb9u1) over (1:1.2.8.dfsg-5) ...
Preparing to unpack .../7-zlib1g_1%3a1.2.8.dfsg-5+deb9u1_armhf.deb ...
Unpacking zlib1g:armhf (1:1.2.8.dfsg-5+deb9u1) over (1:1.2.8.dfsg-5) ...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-97Ggh8/0-python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb
W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
E: Sub-process /usr/bin/dpkg returned an error code (1)

The text was updated successfully, but these errors were encountered:

Joulinar · 2022-04-18T09:28:36Z

Basically you are running Debian Stretch still, which we don't support anymore.

@MichaIng could you have a look pls

As well you have configured 2 times the same PHP repository

/etc/apt/sources.list.d/dietpi-php.list
/etc/apt/sources.list.d/php.list

Even if unrelated to this issue, something you should fix.

MichaIng · 2022-04-20T11:46:17Z

To be sure, let's have a look into both files:

cat /etc/apt/sources.list.d/dietpi-php.list
cat /etc/apt/sources.list.d/php.list

The first is the one intended/installed by dietpi-software to enable PHP7.3 installs on Debian Stretch.

pyclean and pycompile are shipped with the python-minimal package. Let's try whether reinstalling it solves the syntax errors:

apt install --reinstall python-minimal

francoisVdW · 2022-04-20T12:31:58Z

Dear Michalng Thank you for your help. I will do these operations this evening (France's time). I will send you the results Best regards Francois Van de Weerdt.

…

----- Mail original ----- De: "MichaIng" ***@***.***> À: "MichaIng/DietPi" ***@***.***> Cc: "francoisVdW" ***@***.***>, "Author" ***@***.***> Envoyé: Mercredi 20 Avril 2022 13:46:28 Objet: Re: [MichaIng/DietPi] dietpi-update Error : NB python --version returns "Python 3.5.3" (Issue #5443) To be sure, let's have a look into both files: cat /etc/apt/sources.list.d/dietpi-php.list cat /etc/apt/sources.list.d/php.list The first is the one intended/installed by dietpi-software to enable PHP7.3 installs on Debian Stretch. pyclean and pycompile are shipped with the python-minimal package. Let's try whether reinstalling it solves the syntax errors: apt install --reinstall python-minimal — Reply to this email directly, view it on GitHub , or unsubscribe . You are receiving this because you authored the thread. Message ID: <MichaIng/DietPi/issues/5443/1103838574 @ github . com>

francoisVdW · 2022-04-20T16:05:14Z

@DietPi-PHP7:~# cat /etc/apt/sources.list.d/dietpi-php.list
deb https://packages.sury.org/php/ stretch main
@DietPi-PHP7:~# cat /etc/apt/sources.list.d/php.list
deb https://packages.sury.org/php/ stretch main

I try to re-install python minimal. It fails as you can see below

Réception de:1 http://raspbian.42.fr/raspbian stretch/main armhf python-minimal armhf 2.7.13-2 [40,5 kB]
40,5 ko réceptionnés en 0s (69,7 ko/s)
W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/dietpi-php.list:1 and /etc/apt/sources.list.d/php.list:1
(Lecture de la base de données... 28831 fichiers et répertoires déjà installés.)
Préparation du dépaquetage de .../python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb ...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: avertissement: le sous-processus ancien script pre-removal a retourné une erreur de sortie d'état 1
dpkg: tentative d'exécution du script du nouveau paquet à la place...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: erreur de traitement de l'archive /var/cache/apt/archives/python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb (--unpack) :
 le sous-processus nouveau script pre-removal a retourné une erreur de sortie d'état 1
Traceback (most recent call last):
  File "/usr/bin/pycompile", line 35, in <module>
    from debpython.version import SUPPORTED, debsorted, vrepr, \
  File "/usr/share/python/debpython/version.py", line 24, in <module>
    from ConfigParser import SafeConfigParser
ImportError: No module named 'ConfigParser'
dpkg: error while cleaning up:
 le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
Des erreurs ont été rencontrées pendant l'exécution :
 /var/cache/apt/archives/python-ldb_2%3a1.1.27-1+deb9u2_armhf.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

The default version of python is 3.5.3

@DietPi-PHP7:~#  python --version
Python 3.5.3

MichaIng · 2022-04-20T16:13:42Z

Does pyclean file as well when you call it from console? Probably it's the python-ldb package which doing a faulty pyclean call instead. Is something depending on it, i.e. what would be removed together with it?

apt -s purge python-ldb

The -s flag makes it a dry run, so nothing is actually purged, but you can see what would be.

MichaIng · 2022-04-20T16:19:39Z

Ah wait, now I see an issue here:

The python command should actually invoke Python 2, not Python 3.
So I guess the Python 2 pyclean is called with Python 3, if it has a python shebang.

Can you show:

which -a python
dpkg -S "$(command -v python)"
which -a python2
which -a python3

francoisVdW · 2022-04-20T16:41:22Z

Here are the 4 commands

@DietPi-PHP7:~# which -a python
/usr/bin/python
@DietPi-PHP7:~# dpkg -S "$(command -v python)"
python-minimal: /usr/bin/python
@DietPi-PHP7:~# which -a python2
/usr/bin/python2
@DietPi-PHP7:~# which -a python3
/usr/local/bin/python3

MichaIng · 2022-04-20T17:10:47Z

Okay, while /usr/bin/python is the intended path provided by the intended package, it identifies as Python 3, so I guess it points to the wrong executable. Can you please show:

readlink -f /usr/bin/python

If this is not /usr/bin/python2.7, then you can fix it with:

ln -sf python2.7 /usr/bin/python

This should then fix the APT upgrade:

apt upgrade

The question remains what broke this symlink. Since /usr/local/bin/python3 exists, but no other python3 executable in path, it seems to have been compiled manually, at least this is not provided by the native Debian python3 package. Probably the install script for this custom Python 3 build also broke the python symlink. On some distros, indeed python is pointing to Python 3 nowadays, but on Debian it is expected to point to Python 2. Not sure why you or an installer you use (?) compiled Python 3 manually. Debian ships Python v3.5.3 just like this:

apt install python3

But if this is wanted, it's better to first uninstall the custom build, or doing it manually. This removes as well modules installed via pip and in case pip itself, so they'd need to be reinstalled.

rm /usr/local/bin/python3*
rm -R /usr/local/lib/python3*

francoisVdW · 2022-04-20T19:39:58Z

It works !
I follow your instructions :

set the link to python27
rm python3*
apt upgrade

The "apt ugrade" works gracefully.

Then I ran "apt install python3". Durring the python3's install one can see

python3 is already the newest version (3.5.3-1).
python3 passé en « installé manuellement ».

which means python3 switched to "manually installed" (as you guessed)

Once again, thank you for your time

Francois.

MichaIng · 2022-04-20T19:52:09Z

Ah okay, strange that which -a python3 showed /usr/local/bin/python3 only, it should show all executables named python3 in all PATH entries, and the python3 package should ship /usr/bin/python3 🤔. Can you show this again?

which -a python3

However, great that the upgrade went through now 🙂.

francoisVdW · 2022-04-20T21:16:03Z

Now (after remove, then apt install python3) the command which -a python3 responds nothing.
Python3 is not in the path anymore. I'm sorry I can not answer your question.

It's not a problem for me, I do call my python3's scripts with the full path of pyton3 (like /usr/bin/python3.5 ./my_script.py)

MichaIng · 2022-04-20T21:37:04Z

This should restore /usr/bin/python3:

apt install --reinstall python3-minimal

MichaIng · 2022-04-22T19:59:11Z

I'll mark this as closed. Feel free to reopen if required.

francoisVdW changed the title ~~dietpi-update Error~~ dietpi-update Error : NB python --version returns "Python 3.5.3" Apr 18, 2022

Joulinar added the Stretch label Apr 18, 2022

MichaIng added Waiting for user reply ⏳ Investigating 🤔 labels Apr 20, 2022

MichaIng added Solution available 🥂 Definite solution has been done and removed Waiting for user reply ⏳ Investigating 🤔 labels Apr 20, 2022

MichaIng closed this as completed Apr 22, 2022

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dietpi-update Error : NB python --version returns "Python 3.5.3" #5443

dietpi-update Error : NB python --version returns "Python 3.5.3" #5443

francoisVdW commented Apr 18, 2022 •

edited by MichaIng

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dietpi-update Error : NB python --version returns "Python 3.5.3" #5443

dietpi-update Error : NB python --version returns "Python 3.5.3" #5443

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francoisVdW commented Apr 18, 2022 • edited by MichaIng Loading

Details:

Steps to reproduce:

Expected behaviour:

Actual behaviour:

Extra details:

Additional logs:

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