Install python-twisted

[danielvegas]

Hi, this is a crosspost from http://www.readynas.com/forum/viewtopic.php?f=7&t=61414
WhoCares? asked me to post this here, too.

I try to install the twisted-engine on my ReadyNas Duo (Sparc). It's used to let an IRC-bot communicate with the network.
The package is available for Debian as "python-twisted": http://twistedmatrix.com/trac/wiki/Downloads

However, when I issue

Code: Select all

apt-get install python-twisted

I receive the following errors:

Code: Select all

ReadyNas:~# apt-get install python-twisted
Reading Package Lists... Done
Building Dependency Tree... Done
You might want to run `apt-get -f install' to correct these:
The following packages have unmet dependencies:
  python-twisted: Depends: python2.3-twisted but it is not going to be installed
  python2.6: Depends: libdb4.8 but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

I installed python 2.6.6 via "WhoCares?" add-on and that works nicely.

So to me it seems like he's trying to install a package called "libdb4.8", but can't. When I try to install it directly, I get the following error:

Code: Select all

ReadyNas:~# apt-get install libdb4.8
Reading Package Lists... Done
Building Dependency Tree... Done
Package libdb4.8 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package libdb4.8 has no installation candidate

I googled this, but since I found nothing, I thought it might be a ReadyNas-specific problem?

Thank you guys for you help!
Daniel

[Xtras]

What's the output of

Code: Select all

dpkg -l | grep libdb

on your ReadyNAS?

[danielvegas]

Code: Select all

ReadyNas:~# dpkg -l | grep libdb
ii  libdb1-compat                     2.1.3-7                     The Berkeley database routines [glibc 2.0/2.
ii  libdb2                            2:2.7.7.0-7                 The Berkeley database routines (run-time fil
ii  libdb3                            3.2.9-22                    Berkeley v3 Database Libraries [runtime]
ii  libdb4.2                          4.2.52-18                   Berkeley v4.2 Database Libraries [runtime]
ii  libdb4.2-dev                      4.2.52-18                   Berkeley v4.2 Database Libraries [developmen
ReadyNas:~#


[Xtras]

Ok, here you go. Pretty much untested since I had to compile most of it for you - except for the libdb4.8 Be aware that although many of the files have a "_all" architecture flag they may not work on other platforms than Sparc.

[danielvegas]

Wohoo. Thank you so much!

I'll try it out later this weekend.

[danielvegas]

Okay, so I installed the packages in the following order:
libdb4.8_4.8.24-1~bpo40+1_sparc.deb
python-pkg-resources_0.6.14-4_all.deb
python-zope.interface_3.5.3-1_sparc.deb
python-twisted-core_11.1.0-1_all.deb
python-twisted-words_11.1.0-1_all.deb
python-twisted-web_11.1.0-1_all.deb
python-twisted-runner_11.1.0-1_sparc.deb
python-twisted-news_11.1.0-1_all.deb
python-twisted-names_11.1.0-1_all.deb
python-twisted-mail_11.1.0-1_all.deb
python-twisted-lore_11.1.0-1_all.deb
python-pyasn1_0.0.11a-1_all.deb
python-twisted-bin_11.1.0-1_sparc.deb

Twisted works fine now. Again, thank you so much for your help with this!

However, I ran into an issue with sqlite3:

Code: Select all

2012-02-25 06:48:12+0100 [-]   File "/usr/lib/python2.6/dist-packages/twisted/enterprise/adbapi.py", line 203, in __init__
2012-02-25 06:48:12+0100 [-]     self.dbapi = reflect.namedModule(dbapiName)
2012-02-25 06:48:12+0100 [-]   File "/usr/lib/python2.6/dist-packages/twisted/python/reflect.py", line 339, in namedModule
2012-02-25 06:48:12+0100 [-]     topLevel = __import__(name)
2012-02-25 06:48:12+0100 [-]   File "/usr/lib/python2.6/sqlite3/__init__.py", line 24, in <module>
2012-02-25 06:48:12+0100 [-]     from dbapi2 import *
2012-02-25 06:48:12+0100 [-]   File "/usr/lib/python2.6/sqlite3/dbapi2.py", line 27, in <module>
2012-02-25 06:48:12+0100 [-]     from _sqlite3 import *
2012-02-25 06:48:12+0100 [-] ImportError: /usr/lib/python2.6/lib-dynload/_sqlite3.so: undefined symbol: sqlite3_set_authorizer


I tried installing the sqlite3-package from http://archive.debian.net/sarge-backpor ... 3/download
However, it doesn't change much unfortunately.

Does anybody know how to set this "sqlite3_set_authorizer"?

[Xtras]

This is a problem with the way the SQlite3 library is compiled for the ReadyNAS. To fix this one would need to rebuild the libsqlite3.so from source and enable the set_authorizer function there. I believe we did that once on x86 while looking into porting Calibre, not sure about Sparc. Try the GPL source provided by Netgear and look for the SET_AUTHORIZER compile time flag, it will take me a bit to check our Sparc sources.

[danielvegas]

Okay, I'm on Radiator 4.1.8 now. The whole twisted-thing still doesn't seem do work out. I could install all the packages except the python-twisted-conch and therefore not the main python-twisted-package, either.
Conch depends on python-crypto, which depends on libc6 and libgmp3c2. This on the other hand conflicts with the already installed libgmp3, which seems to be required by php5-gmp.

Code: Select all

readynas:~# dpkg -i python-twisted-conch_11.1.0-1_all.deb
(Reading database ...
16219 files and directories currently installed.)
Preparing to replace python-twisted-conch 1:11.1.0-1 (using python-twisted-conch_11.1.0-1_all.deb) ...
Unpacking replacement python-twisted-conch ...
dpkg: dependency problems prevent configuration of python-twisted-conch:
 python-twisted-conch depends on python-crypto (>= 2.0.1+dfsg1-1.1); however:
  Package python-crypto is not configured yet.
dpkg: error processing python-twisted-conch (--install):
 dependency problems - leaving unconfigured
Processing triggers for python-twisted-core ...
Errors were encountered while processing:
 python-twisted-conch

Code: Select all

readynas:~# dpkg -i python-crypto_2.1.0-2_sparc.deb
(Reading database ...
16219 files and directories currently installed.)
Preparing to replace python-crypto 2.1.0-2 (using python-crypto_2.1.0-2_sparc.deb) ...
Unpacking replacement python-crypto ...
dpkg: dependency problems prevent configuration of python-crypto:
 python-crypto depends on libc6 (>= 2.6); however:
  Version of libc6 on system is 2.3.2.ds1-22sarge6.infrant1.
 python-crypto depends on libgmp3c2; however:
  Package libgmp3c2 is not installed.
dpkg: error processing python-crypto (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 python-crypto

Code: Select all

readynas:~# dpkg -i libgmp3c2_4.3.2+dfsg-1_sparc.deb
dpkg: considering removing libgmp3 in favour of libgmp3c2 ...
dpkg: no, cannot proceed with removal of libgmp3 (--auto-deconfigure will help):
 php5-gmp depends on libgmp3
  libgmp3 is to be removed.
dpkg: regarding libgmp3c2_4.3.2+dfsg-1_sparc.deb containing libgmp3c2:
 libgmp3c2 conflicts with libgmp3
  libgmp3 (version 4.1.4-6) is present and installed.
dpkg: error processing libgmp3c2_4.3.2+dfsg-1_sparc.deb (--install):
 conflicting packages - not installing libgmp3c2
Errors were encountered while processing:
 libgmp3c2_4.3.2+dfsg-1_sparc.deb

Is there any way to resolve this or should I rather put my twisted-plans to rest?

[Xtras]

I'll look into that. The libgmp3c2 shouldn't be there in the first place - must be a leftover from another test I overlooked when building. Sorry.

[Xtras]

Umm, where did you get the python-crypto from? That's not the version you should be using. I'll attach a working one to the first post.

[Xtras]

Just checked, the libgmp3c2 isn't on my build system so where did you get that one from?

[Xtras]

Ok, I just added the python-crypto package I used to build twisted. Should work for you, too, and doesn't require libgmp3c2 but uses the one on the ReadyNAS instead.

[danielvegas]

Thanks, I'll try that tonight, since I don't have remote-ssh-access to the NAS from here.

I needed another package called python-pkg-resources earlier, because python-zope depended on it. I got that from the squeeze-repository and it worked flawlessly (as far as I can tell): http://packages.debian.org/squeeze/python-pkg-resources
So I thought I could give python-crypto a shot, too.

I got the python-crypto-pacakge from http://packages.debian.org/squeeze/python-crypto
The libgmp3c2 at http://packages.debian.org/squeeze/libgmp3c2 failed during the installation.

It's not like I'd really know what I'm doing here..

[Xtras]

Generally you may be able to use packages from the Squeeze repository as long as they are Python-only. But when a package depends on external libraries or has to be compiled from C source code, chances are you better not use it but ask here instead.

[danielvegas]

You are my python-twisted-hero! Everything works fine now.
For future reference:

Code: Select all

01. libdb4.8_4.8.24-1~bpo40+1_sparc.deb
02. python-pkg-resources_0.6.14-4_all.deb
03. python-zope.interface_3.5.3-1_sparc.deb
04. python-twisted-bin_11.1.0-1_sparc.deb
05. python-twisted-core_11.1.0-1_all.deb
06. python-twisted-words_11.1.0-1_all.deb
07. python-twisted-web_11.1.0-1_all.deb
08. python-twisted-runner_11.1.0-1_sparc.deb
09. python-twisted-news_11.1.0-1_all.deb
10. python-twisted-names_11.1.0-1_all.deb
11. python-twisted-mail_11.1.0-1_all.deb
12. python-twisted-lore_11.1.0-1_all.deb
13. python-pyasn1_0.0.11a-1_all.deb
14. python-crypto_2.1.0-2.rns1_sparc.deb
15. python-twisted-conch_11.1.0-1_all.deb
16. python-twisted_11.1.0-1_all.deb

Thanks a lot for your help!