[Scons-users] import pandas into SConstruct

[Bill Deegan]

O.k. Try commenting out this line:

around line 85 in whatever your equivalent to:
/Users/bdbaddog/tmp/panda/venv/lib/python2.7/site-packages/scons-2.4.1/SCons/compat/__init__.py
is.

# In 3.x, 'pickle' automatically loads the fast version if available.
#rename_module('pickle', 'cPickle')


On Thu, Mar 10, 2016 at 8:19 PM, Bill Deegan <bill at baddogconsulting.com>
wrote:

> Chris,
>
> I see the problem. (in scons's compat.py renaming packages to prep for py3
> compatibility).
> Which version of SCons are you using?
>
> -Bill
>
> On Thu, Mar 10, 2016 at 8:12 PM, chris warth <cswarth at gmail.com> wrote:
>
>> Thanks!  If it's any help, I've reduced the example to one that doesn't
>> involve pandas at all.  It seems that under scons, 'pkl.Unpickler' is a
>> function rather than a class.
>>
>> $ cat scons.py
>>
>> import pickle as pkl
>> print type(pkl.Unpickler)
>>
>> class Unpickler(pkl.Unpickler):
>>     pass
>>
>> $ python scons.py
>>
>>
>>
>>
>> <type 'classobj'>
>>
>> $ scons -f scons.py
>>
>>
>>
>>
>> scons: Reading SConscript files ...
>> <type 'builtin_function_or_method'>
>> TypeError: Error when calling the metaclass bases
>>     cannot create 'builtin_function_or_method' instances:
>>   File "/path/explore/scons.py", line 5:
>>     class Unpickler(pkl.Unpickler):
>>
>>
>> On Thu, Mar 10, 2016 at 5:09 PM, Bill Deegan <bill at baddogconsulting.com>
>> wrote:
>>
>>> Just built a virtualenv with pandas and scons.
>>> Get same stack trace.
>>> Let me take a quick look and see if it's something simple.
>>>
>>> -Bill
>>>
>>> On Thu, Mar 10, 2016 at 7:49 PM, William Blevins <wblevins001 at gmail.com>
>>> wrote:
>>>
>>>> See inline.
>>>>
>>>> On Thu, Mar 10, 2016 at 10:39 PM, chris warth <cswarth at gmail.com>
>>>> wrote:
>>>>
>>>>> I am having trouble importing the pandas package into an SConstruct
>>>>> file.
>>>>> Can anyone confirm if this is real defect or just something in my
>>>>> environment?
>>>>>
>>>>> Thanks for any help,
>>>>>
>>>>> - Chris
>>>>>
>>>>>
>>>>> $ cat >scons.test
>>>>>> import pandas as pd
>>>>>> ^D
>>>>>> $ scons -f scons.test
>>>>>> scons: Reading SConscript files ...
>>>>>> TypeError: Error when calling the metaclass bases
>>>>>>     cannot create 'builtin_function_or_method' instances:
>>>>>>   File "/path/explore/scons.test", line 1:
>>>>>>     import pandas as pd
>>>>>>   File
>>>>>> "/path/venv/local/lib/python2.7/site-packages/pandas/__init__.py", line 48:
>>>>>>     from pandas.io.api import *
>>>>>>   File
>>>>>> "/path/venv/local/lib/python2.7/site-packages/pandas/io/api.py", line 14:
>>>>>>     from pandas.io.pickle import read_pickle, to_pickle
>>>>>>   File
>>>>>> "/path/venv/local/lib/python2.7/site-packages/pandas/io/pickle.py", line 1:
>>>>>>     from pandas.compat import cPickle as pkl, pickle_compat as pc, PY3
>>>>>>   File
>>>>>> "/path/venv/local/lib/python2.7/site-packages/pandas/compat/pickle_compat.py",
>>>>>> line 57:
>>>>>>     class Unpickler(pkl.Unpickler):
>>>>>>
>>>>>
>>>>
>>>> This error isn't coming from SCons. This error is coming from trying to
>>>> import from the pandas library. Right? Is the version of pandas installed
>>>> setup for python3 rather than python2?
>>>>
>>>>
>>>>> $ python --version
>>>>>> Python 2.7.6
>>>>>> $ scons --version
>>>>>> SCons by Steven Knight et al.:
>>>>>>         script: v2.4.1.rel_2.4.1:3453:73fefd3ea0b0, 2015/11/09
>>>>>> 03:25:05, by bdbaddog on ubuntu1404-32bit
>>>>>>         engine: v2.4.1.rel_2.4.1:3453:73fefd3ea0b0, 2015/11/09
>>>>>> 03:25:05, by bdbaddog on ubuntu1404-32bit
>>>>>>         engine path:
>>>>>> ['/shared/silo_researcher/Matsen_F/MatsenGrp/working/cwarth/founder-inference-bakeoff/venv/lib/scons-2.4.1/SCons']
>>>>>> Copyright (c) 2001 - 2015 The SCons Foundation
>>>>>> $ python -c 'import pandas as pd; print pd.__version__'
>>>>>> 0.17.1
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Scons-users mailing list
>>>>> Scons-users at scons.org
>>>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>>>
>>>>>
>>>>
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>>>
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>>
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>
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