Python 2.5.1 and _md5

[mavr1k@…]

I recently just upgraded to python 2.5.1 (from source), and now when running trac-admin receive the following error:

Traceback (most recent call last):
  File "/usr/bin/trac-admin", line 21, in <module>
    from trac.scripts.admin import run
  File "/usr/lib/python2.5/site-packages/trac/scripts/admin.py", line 27, in <module>
    from trac import perm, util, db_default
  File "/usr/lib/python2.5/site-packages/trac/perm.py", line 21, in <module>
    from trac.config import ExtensionOption
  File "/usr/lib/python2.5/site-packages/trac/config.py", line 26, in <module>
    from trac.util import sorted
  File "/usr/lib/python2.5/site-packages/trac/util/__init__.py", line 21, in <module>
    import md5
  File "/usr/lib/python2.5/md5.py", line 6, in <module>
    from hashlib import md5
  File "/usr/lib/python2.5/hashlib.py", line 133, in <module>
    md5 = __get_builtin_constructor('md5')
  File "/usr/lib/python2.5/hashlib.py", line 60, in __get_builtin_constructor
    import _md5
ImportError: No module named _md5

[anonymous]

More info:

"Python 2.5 has deprecated the use of the sha1 and md5 modules in favor of the hashlib module. A patch will be following that implements django.contrib.auth.models methods using hashlib."

​http://code.djangoproject.com/ticket/3604

[Christian Boos]

Well, deprecated the use doesn't mean the code won't work anymore. As you can see from the backtrace, doing import md5 actually triggers a from hashlib import md5. The failure you actually have is that it can't load the (binary) module _md5. As you said you've built 2.5.1 from source, I suspect that module was simply not built or installed.

That being said, we can be a bit more future proof, the way suggested in the patch above.

[mavr1k@…]

How would I resolve this for my installation of trac? The traceback seems to be pointing to different files then the patch linked. I guess i could just apply the patch to said file anyway.

[Christian Boos]

This has nothing to do with Trac, it's your Python build which is broken. In the Python interactive interpreter, try:

$ python
>>> from hashlib import md5

I'm quite sure you'll get the same error.

[mavr1k@…]

Any suggestions then? (Other then backing python down to 2.4.x, I have another important app that requires 2.5)

[mavr1k@…]

This also makes the FastCGI module bomb out, any ideas?

[baeuml@…]

Do you see a difference when you run

$ env python
>>> from hashlib import md5

vs(notice the '-')

$ env - python
>>> from hashlib import md5

I had the strange case, that the first one worked, the second one didn't. It turned out, that the my shell script (a svn post-commit script actually) somehow lost the environment variables, and therefore also lost the value in LD_LIBRARY_PATH, which contained the search path where python would normally find the md5 module (like in the first case).

I fixed it by setting LD_LIBRARY_PATH in the (shell) script directly so that it could find the needed library.

[vladimir ivanov]

I fixed the problem by recompiling both apache and mod_python. That is on gentoo box.

[Leos1977@…]

Hi, can you help me out about how to use the models.py. Beacuase I don´t know which files I have to modify or recompile or where I have to put this file to solve the problem of md5.

Thanks in advance.

[Christian Boos]

Replying to cboos:

Well, deprecated the use doesn't mean the code won't work anymore. As you can see from the backtrace, doing import md5 actually triggers a from hashlib import md5. The failure you actually have is that it can't load the (binary) module _md5. As you said you've built 2.5.1 from source, I suspect that module was simply not built or installed.

worksforme for that part, as said in comment:8

That being said, we can be a bit more future proof, the way suggested in the patch above.

See #7458 which has a patch (many actually ;-) ).

[miwinter@…]

Well somehow a few weeks ago I got buildbot to install, apparently with bandaids and bailing wire and some trick Ive forgotten. I could use some help. Either with memory or how to disable ssl or include the correct header i think this requires an override for value from uname -p, since openssl-64 header is missing, so I want to revert to using the headers for i386. Im looking for the flag to configure to execute this override to pass to configure, so far w/o success Then with recent makefile cleanup (buildbot installs fine on xe-sawwing) and reinstall attempt I think I hit a python version /openssl version mismatch. So for now, buildbot master and checkout client is broken. ​http://www.nabble.com/-Bug-36016--python,-ASSIGNED:-python-hash-libraries-missing,-can-not-resolve-md5-_md5-for-example-(after-2.5.1-hashlib-reorg)-td18048988.html compilation issue expresses in python build w/ syntax issues in ssl headers. adb-bldsrv-04: rpm -qf /usr/include/openssl/bn.h

openssl-devel-0.9.7a-43.14 adb-bldsrv-04: uname -a Linux adbu-bldsrv-04 2.6.9-42.7.ELsmp #1 SMP Tue Sep 5 18:25:41 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux

adb-bldsrv-04: rpm -qa|grep opens

openssl-devel-0.9.7a-43.14 openssh-askpass-gnome-3.9p1-8.RHEL4.15 openssh-clients-3.9p1-8.RHEL4.15 openssh-server-3.9p1-8.RHEL4.15 openssh-3.9p1-8.RHEL4.15 xmlsec1-openssl-1.2.6-3 openssl-0.9.7a-43.14 openssh-askpass-3.9p1-8.RHEL4.15 openssl-0.9.7a-43.14

Whereas on a 32bit box build with same makefile is fine: xe-sawwing: rpm -qf /usr/include/openssl/bn.h

openssl-devel-0.9.7a-33.21.Reactivity.2

xe-sawwing: uname -a

Linux sawwing.reactivity.com 2.4.21-47.ELsmp #1 SMP Wed Jul 5 20:38:41 EDT 2006 i686 i686 i386 GNU/Linux

xe-sawwing: rpm -qa|grep opens

openssh-server-3.6.1p2-33.30.12.Reactivity.1 openssh-clients-3.6.1p2-33.30.12.Reactivity.1 openssl-0.9.7a-33.21.Reactivity.2 openssl-devel-0.9.7a-33.21.Reactivity.2 openssh-3.6.1p2-33.30.12.Reactivity.1

xe-sawwing: rpm -qf /usr/include/openssl/bn.h

openssl-devel-0.9.7a-33.21.Reactivity.2

on adbu-bldsrv, first exception is seen here….

from /work/miwinter/sandbox/waas/test/Python-2.5.2/Modules/_ssl.c:36:

/usr/include/openssl/opensslconf.h:25:32: opensslconf-x86_64.h: No such file or directory In file included from /usr/include/openssl/asn1.h:67,

from /usr/include/openssl/rsa.h:62, from

/work/miwinter/sandbox/waas/test/Python-2.5.2/Modules/_ssl.c:36: /usr/include/openssl/bn.h:245: error: syntax error before "BN_ULONG"

then after 'successfully' completing and requesting install of setuptools cant find module _md5 workaround? consider forcing compilaton for i686 or different combo of openssl version?

[Remy Blank]

WrongTrac or spam?