taskDaemon.py start: ImportError:cannot import name ConferenceSchedule

[sylvestre]

After fixing by hand bug #125 (getting the file from the source tree)
On the startup of taskDeamon.py, I get:
ImportError:cannot import name ConferenceSchedule?

I did a standard installation through easy_install.

[pferreir]

Is MaKaC/schedule.py OK? Maybe it's empty too?

[pferreir]

I confirm that the file exists and is not empty.
-rw-r--r-- 1 root root 16384 jan 13
22:14 /usr/lib/python2.5/site-packages/cds_indico-0.97b-py2.5.egg/MaKaC/schedule.py

And I don't have any other 0 size file:
# find . -size 0
./RSSinterface/__init__.py
./PDFinterface/ttfonts/.keep
./services/__init__.py
./services/implementation/__init__.py
./services/interface/__init__.py
./services/interface/rpc/__init__.py
./consoleScripts/__init__.py
./fossils/__init__.py
./po/__init__.py

This is really weird. Is it possible to get a full traceback?

[sylvestre]

Sorry there is no backtrace generated. I can test whatever you want.

[pferreir]

The exception just shows up like this? No debugging output? This is really weird. How are you running the taskdaemon? easy_install should have installed it in your bin path.

[sylvestre]

# taskDaemon start
Daemon started! (pid=13782)

ImportError:cannot import name ConferenceSchedule?

For what is worth, the strace show it finds the file but fails after that...

[pid 13926] open("/usr/lib/python2.5/site-packages/cds_indico-0.97b-py2.5.egg/MaKaC/schedule.py", O_RDONLY|O_LARGEFILE) = 4
[pid 13926] fstat64(4, {st_mode=S_IFREG|0644, st_size=16384, ...}) = 0
[pid 13926] open("/usr/lib/python2.5/site-packages/cds_indico-0.97b-py2.5.egg/MaKaC/schedule.pyc", O_RDONLY|O_LARGEFILE) = 5
[pid 13926] fstat64(5, {st_mode=S_IFREG|0644, st_size=18517, ...}) = 0
[pid 13926] mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb793b000
[pid 13926] read(5, "\263\362\r\n\3207NKc\0\0\0\0\0\0\0\0\21\0\0\0@\0\0\0s*\1\0\0d\0\0"..., 4096) = 4096
[pid 13926] fstat64(5, {st_mode=S_IFREG|0644, st_size=18517, ...}) = 0
[pid 13926] read(5, "5/site-packages/cds_indico-0.97b-"..., 12288) = 12288
[pid 13926] read(5, "\0\0R\27\0\0\0RE\0\0\0(\0\0\0\0(\0\0\0\0sM\0\0\0/usr/l"..., 4096) = 2133
[pid 13926] read(5, ""..., 4096) = 0
[pid 13926] close(5) = 0
[pid 13926] munmap(0xb793b000, 4096) = 0
[pid 13926] close(4) = 0
[pid 13926] close(3) = 0
[pid 13926] fstat64(1, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 1), ...}) = 0
[pid 13926] mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb793b000
[pid 13926] write(1, "ImportError:cannot import name Co"..., 50ImportError:cannot import name ConferenceSchedule?

[pferreir]

Can you please diff the file you have with the one from the repository? It's very strange that it isn't able to import this particular class. If you do:

$ PYTHONPATH=indico/ python
Python 2.6.3 (r263:75183, Oct 10 2009, 03:50:39) 
[GCC 4.3.4] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from MaKaC.schedule import ConferenceSchedule

[pferreir]

(i meant PYTHONPATH=/path/to/your/indico/egg)

[sylvestre]

OK, I found the issue.

I don't know why but the file from the easy_install (~10ko without any class) was different from the one in the tarball (~1ko with many classes).

Why it was there... I have not idea... Maybe the same kind of problem as in #125

[pferreir]

I'll close it for lack of evidence. If someone else reports this issue I'll reopen it.

[sylvestre]

As you wish but I can reproduce it anytime ...

[pferreir]

You mean that if you delete the egg and easy_install it over again, it keeps failing?
Can you please attach your "class-less" schedule.py?

[sylvestre]

The Wrong file

[sylvestre]

I reinstall cds indico to reproduce this bug and I can confirm that it is failing again.

Doing this:
cp /path/to/tarball/cds-indico-0.97b/indico/MaKaC/schedule.py /usr/lib/python2.5/site-packages/cds_indico-0.97b-py2.5.egg/MaKaC/schedule.py
fixes the issue

[pferreir]

OK, it seems the egg was somehow corrupted (weird...)

Can you please try it again?

Sorry for the trouble.