Missing dep while installing via pip?

[chmouel]

I am installing sftp-cludfiles via pip which seems to install fine according to this log http://pastie.org/private/6yiqvbsq9ipdtxvp6uchha

when trying to use run pidlock i am getting :

chmouel@swift-all-in-one:~$ sftpcloudfs 
Traceback (most recent call last):
  File "/usr/local/bin/sftpcloudfs", line 4, in <module>
    from sftpcloudfs.main import Main
  File "/usr/local/lib/python2.6/dist-packages/sftpcloudfs/main.py", line 35, in <module>
    from daemon.pidlockfile import PIDLockFile
ImportError: No module named pidlockfile

This is because Ubuntu has a old version of python-pidlock by default which doesn't have a daemon.pidlockfile and take precendence in python path :

http://pastie.org/private/r7ca5l0f7xmk2d47ogcaga

I have work-arounded in ftpcloudfs with using my own in utils.PidFile

[reidrac]

Which version of python-daemon are you using? I have 1.5.2 installed and it provides daemon.pidlockfile.

We should enforce the package versions on the setup.py file. Good catch!

[reidrac]

Oh, I see: python-daemon 1.6.

I need to check that version, we use 1.5.5 in our dev/pro environment.

[chmouel]

I have actually 1.5.5 :

chmouel@swift-all-in-one:~/GIT/ftp-cloudfs$ dpkg -l python-daemon
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                       Version                    Description
+++-==========================-==========================-====================================================================
ii  python-daemon              1.5.5-1                    library for making
a Unix daemon process

On Thu, Aug 18, 2011 at 10:08 PM, reidrac <
reply@reply.github.com>wrote:

Which version of python-daemon are you using? I have 1.5.2 installed and it
provides daemon.pidlockfile.

We should enforce the package versions on the setup.py file. Good catch!

Reply to this email directly or view it on GitHub:
#1 (comment)

[reidrac]

This is weird, your log points to 1.6: http://pastie.org/private/6yiqvbsq9ipdtxvp6uchha

Downloading python-daemon-1.6.tar.gz (41Kb): 41Kb downloaded

But PyPi lists 1.5.5.: http://pypi.python.org/pypi/python-daemon :)

[chmouel]

sorry, yes it use the /usr/local one you right it's 1.6 :

Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56) 
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import daemon.version
>>> daemon.version
<module 'daemon.version' from '/usr/local/lib/python2.6/dist-packages/daemon/version/__init__.pyc'>
>>> daemon.version.version
u'1.6'
>>> 

[reidrac]

I've verified python-daemon 1.6 version doesn't provide daemon.pidlockfile.

I'll try to find if that 1.6 version will be next release (PyPi says latest version is 1.5.5), and then confirm if daemon.pidlockfile is gone forever :)

[chmouel]

This is available here :

http://pypi.python.org/pypi/python-daemon/1.6

seems like they moved it to lockfile package :

daemon/pidfile.py :

from lockfile.pidlockfile import PIDLockFile

which is available in python-lockfile 0.9

[chmouel]

not sure what's the deal tho and why it hasn't been released and why pip is picking it up (a lot of why and no answers sorry).
I would try on a vanilla vm when i get a bit more time but don't think it's a biggie bug :)

[reidrac]

OK, thanks!

So either python-daemon 1.5.5 or python-daemon 1.6 + python-lockfile 0.9.

Anyway I don't understand how are you getting that 1.6 version, in a clean virtualenv I always get 1.5.5 :)

[chmouel]

this VM is known to pick up every kind of weirdness tho, been messing with it since the last 3 years for swift dev and such, probably user specific but maybe something good to know in the future.

[reidrac]

OK, I've verified that it's probably a local issue in your VM.

python-daemon 1.6 installs lockfile as dependency in pip, so it's all right!

[reidrac]

I managed to reproduce your problem!

We're sticking into 1.5.5 by now (it's the most recent packaged version). We probably need to change some code to support 1.6.

commit c5f43dd

Thanks!

[reidrac]

Just for the record: seems to be a pip bug (I can reproduce it with pip 0.8.1; that is the one my virtualenv is installing).

I contacted python-daemon maintainer and he confirmed me that the version 1.6 is experimental and it shouldn't be used by pip. Upgrading pip fixes the problem though (pip install --upgrade pip).

BUT there's another issue with lockfile, that it's a dependency of python-daemon. Current version is 0.9.1, and it doesn't seem to work with current python-daemon (1.5.5).