Re: [Matplotlib-users] Pylab import error due to dateutil

[Michael D. <md...@st...>]

I filed an issue for this.  We should try to get the fix into 1.2.x

https://github.com/matplotlib/matplotlib/issues/1354

Mike

On 10/10/2012 09:00 AM, Michael Droettboom wrote:
> I think this stack overflow question [1] sort of sums up the problem 
> -- setuptools develop is kind of a hack and only really works if the 
> source structure matches the installed structure.  That used to be 
> true of matplotlib, but installing different packages based on the 
> Python version breaks that assumption.
>
> A suggestion in the Stack Overflow entry is to install symlinks to fix 
> this, and indeed doing this works:
>
>    cd lib
>    ln -s dateutil_py2 dateutil
>
> We can probably automate this in the setupegg.py script, but I don't 
> think I'll have a chance to get to this today.  We can't just include 
> the symlink in git, since it should point to the version that 
> corresponds to the user's Python.
>
> [1] 
> http://stackoverflow.com/questions/6019042/is-there-a-way-to-add-a-namespace-prefix-setuptools-package-distributions
>
> Mike
>
> On 10/10/2012 08:50 AM, Michael Droettboom wrote:
>> This is related to using develop mode.  I never use that (I use 
>> virtualenvs instead), so this doesn't get much testing.  This seems 
>> to have broken when we started to ship separate versions of dateutil 
>> for python2 and python3.  setuptools doesn't seem to like the fact 
>> that we rename dateutil_py2 to dateutil when installing (since in 
>> develop mode it doesn't really install or move anything). That's 
>> problematic, of course.  I'll have to see if there's another way to 
>> handle this.
>>
>> Mike
>>
>> On 10/09/2012 09:36 PM, Gökhan Sever wrote:
>>> Hello,
>>>
>>> With a fresh
>>>
>>> git clone git://github.com/matplotlib/matplotlib.git 
>>> <http://github.com/matplotlib/matplotlib.git>
>>> sudo python setupegg.py develop
>>>
>>> Starting ipython --pylab I get this error:
>>>
>>> .../matplotlib/lib/matplotlib/dates.py in <module>()
>>>     120 import matplotlib.ticker as ticker
>>>     121
>>> --> 122 from dateutil.rrule import rrule, MO, TU, WE, TH, FR, SA, 
>>> SU, YEARLY, \
>>>     123      MONTHLY, WEEKLY, DAILY, HOURLY, MINUTELY, SECONDLY
>>>     124 from dateutil.relativedelta import relativedelta
>>>
>>> ImportError: No module named dateutil.rrule
>>>
>>>
>>> Installing dateutil 1.5 fixes this.
>>>
>>> mpl install log shows the following:
>>>
>>> OPTIONAL DATE/TIMEZONE DEPENDENCIES
>>>               dateutil: matplotlib will provide
>>>                   pytz: matplotlib will provide
>>>
>>> Will dateutil be shipped with mpl or this line needs to be updated?
>>>
>>> Thanks.
>>>
>>>
>>> -- 
>>> Gökhan
>>>
>>>
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