Hi Hartmut, I was hoping for you to show up and give your input. Thank you! I appreciate you taking the time.
> re 1): This is extremely curious: Why is the older package imported, > where the newer one is expected to be first in path? > > To analyze this in detail, please make a copy of the resp. wrapper > script and change the last command into: > > exec -a "$0" python3 -m site > > and run the changed wrapper. This should show all paths defined in the > wrapper first. Since this is Python 2 I used this line: exec -a "$0" /gnu/store/0n8ni2l…-python-2.7.13/bin/python -m site The full wrapper looks like this: --8<---------------cut here---------------start------------->8--- #!/gnu/store/f8k940vy9gck66m9r4id5m098w3hxgka-bash-minimal-4.4.12/bin/bash export PYTHONPATH="/gnu/store/bz9l68hwlvwbp21msm2v002y7s8qfdd3-ribodiff-0.2.2/lib/python2.7/site-packages:/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/site-packages:/gnu/store/95xlp80dp36m6nllaifndvc1vspnxwb2-python2-mock-1.0.1/lib/python2.7/site-packages:/gnu/store/8dgqb88wabnqscri4brwhasar7i1an1h-python2-nose-1.3.7/lib/python2.7/site-packages:/gnu/store/xd796qc9kjaslw85jk7f81fxkql021x0-python2-numpy-1.12.0/lib/python2.7/site-packages:/gnu/store/l1gdwsx4gr23gzy8zw6n588icdhhw8z4-python2-matplotlib-2.0.2/lib/python2.7/site-packages:/gnu/store/prvq91x42x7wpxbjgx83y78n23jx3jd5-python2-scipy-0.19.1/lib/python2.7/site-packages:/gnu/store/ng6srvhfmkz9i6g2ilbg6zksbh0v9yik-python2-statsmodels-0.8.0/lib/python2.7/site-packages:/gnu/store/vls5bci2wk15sz080g6wgycj6fmm44w9-python2-cairocffi-0.8.0/lib/python2.7/site-packages:/gnu/store/lfnzcj977hldqhkcpivag1hwqqqzk4gr-python2-six-1.10.0/lib/python2.7/site-packages:/gnu/store/vcs6yjy3851zn350gc90ipw2if3rg2vj-python2-pytz-2017.3/lib/python2.7/site-packages:/gnu/store/5w9r2c3dcz353n9rp56pcwvbks8s2hva-python2-pillow-3.3.3/lib/python2.7/site-packages:/gnu/store/hl1ly62q6gsiwd287gqy354dbgrq5sxk-python2-dateutil-2.6.0/lib/python2.7/site-packages:/gnu/store/8jwxgbcym5i1accf88bq7i8fgzg2z68q-python2-pyparsing-2.2.0/lib/python2.7/site-packages:/gnu/store/ikx5his9njw7r7df06gkwlayhgl2780a-python2-cycler-0.10.0/lib/python2.7/site-packages:/gnu/store/jknf4w4s9w5w71ampcymgn4d14hfwx3h-python-2.7.13-tk/lib/python2.7/site-packages:/gnu/store/gdgy38ylfm4jaz4cmq6c6650i8iga21l-python2-subprocess32-3.2.7/lib/python2.7/site-packages:/gnu/store/pdlc7mwmm1vfrkgcpscps5kj0p1gwa14-python2-pygobject-2.28.6/lib/python2.7/site-packages:/gnu/store/s8sn8r41jyn35aginp63z2232sw9g23a-python2-functools32-3.2.3-2/lib/python2.7/site-packages:/gnu/store/bj4jlrnai5qlic1arjijyp47isvipca7-python2-pycairo-1.10.0/lib/python2.7/site-packages:/gnu/store/rhc5rpihy35ss7i9fvc0knqa798br9yj-python2-patsy-0.4.1/lib/python2.7/site-packages:/gnu/store/mrm8hn8rv04hm80sl63c1w33xs5gg147-python2-pandas-0.19.2/lib/python2.7/site-packages:/gnu/store/q977dgwlvmak15qn0w2kjk3q322mbrwi-python2-xcffib-0.5.1/lib/python2.7/site-packages:/gnu/store/gmdlgpm3jyfi608fyjmj6g7svpp5y8lc-python2-cffi-1.11.2/lib/python2.7/site-packages:/gnu/store/7fziyn0m8wjc98j0g056bms4yv94mi5q-python2-pycparser-2.17/lib/python2.7/site-packages${PYTHONPATH:+:}$PYTHONPATH" #exec -a "$0" "/gnu/store/bz9l68hwlvwbp21msm2v002y7s8qfdd3-ribodiff-0.2.2/bin/.TE.py-real" "$@" exec -a "$0" /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/bin/python -m site --8<---------------cut here---------------end--------------->8--- While PYTHONPATH is set this prints *nothing* at all. Only after “unset PYTHONPATH” I get this: --8<---------------cut here---------------start------------->8--- sys.path = [ '/home/uzinnal', '/gnu/store/bz9l68hwlvwbp21msm2v002y7s8qfdd3-ribodiff-0.2.2/lib/python2.7/site-packages', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/site-packages', '/gnu/store/95xlp80dp36m6nllaifndvc1vspnxwb2-python2-mock-1.0.1/lib/python2.7/site-packages', '/gnu/store/8dgqb88wabnqscri4brwhasar7i1an1h-python2-nose-1.3.7/lib/python2.7/site-packages', '/gnu/store/xd796qc9kjaslw85jk7f81fxkql021x0-python2-numpy-1.12.0/lib/python2.7/site-packages', '/gnu/store/l1gdwsx4gr23gzy8zw6n588icdhhw8z4-python2-matplotlib-2.0.2/lib/python2.7/site-packages', '/gnu/store/prvq91x42x7wpxbjgx83y78n23jx3jd5-python2-scipy-0.19.1/lib/python2.7/site-packages', '/gnu/store/ng6srvhfmkz9i6g2ilbg6zksbh0v9yik-python2-statsmodels-0.8.0/lib/python2.7/site-packages', '/gnu/store/vls5bci2wk15sz080g6wgycj6fmm44w9-python2-cairocffi-0.8.0/lib/python2.7/site-packages', '/gnu/store/lfnzcj977hldqhkcpivag1hwqqqzk4gr-python2-six-1.10.0/lib/python2.7/site-packages', '/gnu/store/vcs6yjy3851zn350gc90ipw2if3rg2vj-python2-pytz-2017.3/lib/python2.7/site-packages', '/gnu/store/5w9r2c3dcz353n9rp56pcwvbks8s2hva-python2-pillow-3.3.3/lib/python2.7/site-packages', '/gnu/store/hl1ly62q6gsiwd287gqy354dbgrq5sxk-python2-dateutil-2.6.0/lib/python2.7/site-packages', '/gnu/store/8jwxgbcym5i1accf88bq7i8fgzg2z68q-python2-pyparsing-2.2.0/lib/python2.7/site-packages', '/gnu/store/ikx5his9njw7r7df06gkwlayhgl2780a-python2-cycler-0.10.0/lib/python2.7/site-packages', '/gnu/store/jknf4w4s9w5w71ampcymgn4d14hfwx3h-python-2.7.13-tk/lib/python2.7/site-packages', '/gnu/store/gdgy38ylfm4jaz4cmq6c6650i8iga21l-python2-subprocess32-3.2.7/lib/python2.7/site-packages', '/gnu/store/pdlc7mwmm1vfrkgcpscps5kj0p1gwa14-python2-pygobject-2.28.6/lib/python2.7/site-packages', '/gnu/store/s8sn8r41jyn35aginp63z2232sw9g23a-python2-functools32-3.2.3-2/lib/python2.7/site-packages', '/gnu/store/bj4jlrnai5qlic1arjijyp47isvipca7-python2-pycairo-1.10.0/lib/python2.7/site-packages', '/gnu/store/rhc5rpihy35ss7i9fvc0knqa798br9yj-python2-patsy-0.4.1/lib/python2.7/site-packages', '/gnu/store/mrm8hn8rv04hm80sl63c1w33xs5gg147-python2-pandas-0.19.2/lib/python2.7/site-packages', '/gnu/store/q977dgwlvmak15qn0w2kjk3q322mbrwi-python2-xcffib-0.5.1/lib/python2.7/site-packages', '/gnu/store/gmdlgpm3jyfi608fyjmj6g7svpp5y8lc-python2-cffi-1.11.2/lib/python2.7/site-packages', '/gnu/store/7fziyn0m8wjc98j0g056bms4yv94mi5q-python2-pycparser-2.17/lib/python2.7/site-packages', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python27.zip', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/plat-linux2', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/lib-tk', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/lib-old', '/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/lib-dynload', '/gnu/store/pdlc7mwmm1vfrkgcpscps5kj0p1gwa14-python2-pygobject-2.28.6/lib/python2.7/site-packages/gtk-2.0', ] USER_BASE: '/home/uzinnal/.local' (exists) USER_SITE: '/home/uzinnal/.local/lib/python2.7/site-packages' (doesn't exist) ENABLE_USER_SITE: True --8<---------------cut here---------------end--------------->8--- > If this does not give any insight, change it into > > exec -a "$0" python3 -v -c "import statsmodels" Again with “python3” replaced as “/gnu/store/…-python-2.7.13/bin/python” I ran this and wasn’t prepared for the deluge of output. The first time statsmodels is mentioned is when the prompt appears and “import statsmodels” is executed. Interestingly it goes straight to the old statsmodels-0.6.1 instead of the newer one (0.8.0) which the wrapper added to PYTHONPATH. --8<---------------cut here---------------start------------->8--- … Python 2.7.13 (default, Jan 1 1970, 00:00:01) [GCC 5.4.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. import statsmodels # directory /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels # /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.pyc matches /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.py import statsmodels # precompiled from /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/__future__.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/__future__.py import __future__ # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/__future__.pyc import numpy # directory /gnu/store/xd796qc9kjaslw85jk7f81fxkql021x0-python2-numpy-1.12.0/lib/python2.7/site-packages/numpy … --8<---------------cut here---------------end--------------->8--- Here’s what happens before the prompt appears: --8<---------------cut here---------------start------------->8--- # installing zipimport hook import zipimport # builtin # installed zipimport hook import site # from /home/uzinnal/.guix-profile/lib/python3.4/site-packages/site.py # can't create /home/uzinnal/.guix-profile/lib/python3.4/site-packages/site.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/os.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/os.py import os # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/os.pyc import errno # builtin import posix # builtin # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/posixpath.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/posixpath.py import posixpath # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/posixpath.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/stat.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/stat.py import stat # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/stat.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/genericpath.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/genericpath.py import genericpath # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/genericpath.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/warnings.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/warnings.py import warnings # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/warnings.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/linecache.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/linecache.py import linecache # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/linecache.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/types.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/types.py import types # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/types.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/UserDict.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/UserDict.py import UserDict # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/UserDict.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_abcoll.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_abcoll.py import _abcoll # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_abcoll.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/abc.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/abc.py import abc # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/abc.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_weakrefset.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_weakrefset.py import _weakrefset # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_weakrefset.pyc import _weakref # builtin # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/copy_reg.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/copy_reg.py import copy_reg # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/copy_reg.pyc import imp # builtin # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/site.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/site.py import site # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/site.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/traceback.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/traceback.py import traceback # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/traceback.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sysconfig.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sysconfig.py import sysconfig # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sysconfig.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/re.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/re.py import re # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/re.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_compile.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_compile.py import sre_compile # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_compile.pyc import _sre # builtin # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_parse.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_parse.py import sre_parse # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_parse.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_constants.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_constants.py import sre_constants # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/sre_constants.pyc dlopen("/gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/lib-dynload/_locale.so", 2); import _locale # dynamically loaded from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/lib-dynload/_locale.so # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_sysconfigdata.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_sysconfigdata.py import _sysconfigdata # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/_sysconfigdata.pyc # zipimport: found 32 names in /home/uzinnal/.guix-profile/lib/python3.4/site-packages/cairocffi-0.6-py3.4.egg # zipimport: found 609 names in /gnu/store/jjx8l3mxszklsq80hdpjv08yd9j14hc8-python-pytz-2016.3/lib/python3.4/site-packages/pytz-2016.3-py3.4.egg # zipimport: found 31 names in /gnu/store/sdddqkk41g9x895kmsd28v1mniiccwpi-python-dateutil-2.5.2/lib/python3.4/site-packages/python_dateutil-2.5.2-py3.4.egg # zipimport: found 32 names in /home/uzinnal/.guix-profile/lib/python2.7/site-packages/cairocffi-0.6-py2.7.egg # zipimport: found 31 names in /gnu/store/xdmyyznc45vcfgrygrq50lbk0z89321k-python2-dateutil-2.5.2/lib/python2.7/site-packages/python_dateutil-2.5.2-py2.7.egg import encodings # directory /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/__init__.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/__init__.py import encodings # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/__init__.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/codecs.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/codecs.py import codecs # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/codecs.pyc import _codecs # builtin # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/aliases.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/aliases.py import encodings.aliases # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/aliases.pyc # /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/utf_8.pyc matches /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/utf_8.py import encodings.utf_8 # precompiled from /gnu/store/0n8ni2ldvyz5yd488cidzi3via7jk7pw-python-2.7.13/lib/python2.7/encodings/utf_8.pyc --8<---------------cut here---------------end--------------->8--- Note that “import site” is satisfied by Python 3, but the behaviour is the same when I only keep Python 2 things on the PYTHONPATH. With “-vvvv” I see that the directory containing statsmodels-0.8.0 is in fact accessed multiple times for “{site,os,posixpath,stat,genericpath,warnings}.{so,py,pyc}” and many more; but when the time comes to “import statsmodels” it loads it from the 0.6.1 directory; it does not look it up in the 0.8.0 directory. --8<---------------cut here---------------start------------->8--- Python 2.7.13 (default, Jan 1 1970, 00:00:01) [GCC 5.4.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. # trying statsmodels.so # trying statsmodelsmodule.so # trying statsmodels.py # trying statsmodels.pyc # trying /gnu/store/b0qkrrkiw0gszw6hdxcbyly6nr9ln7n3-python2-cffi-1.4.2/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.so # trying /gnu/store/b0qkrrkiw0gszw6hdxcbyly6nr9ln7n3-python2-cffi-1.4.2/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodelsmodule.so # trying /gnu/store/b0qkrrkiw0gszw6hdxcbyly6nr9ln7n3-python2-cffi-1.4.2/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.py # trying /gnu/store/b0qkrrkiw0gszw6hdxcbyly6nr9ln7n3-python2-cffi-1.4.2/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.pyc # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodelsmodule.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.py # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/cffi-1.4.2-py2.7-linux-x86_64.egg/statsmodels.pyc # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/statsmodels.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/statsmodelsmodule.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/statsmodels.py # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/statsmodels.pyc # trying /gnu/store/8707rsnrfi3f747pj1jvxr7bwb0kk982-python2-nose-1.3.7/lib/python2.7/site-packages/nose-1.3.7-py2.7.egg/statsmodels.so # trying /gnu/store/8707rsnrfi3f747pj1jvxr7bwb0kk982-python2-nose-1.3.7/lib/python2.7/site-packages/nose-1.3.7-py2.7.egg/statsmodelsmodule.so # trying /gnu/store/8707rsnrfi3f747pj1jvxr7bwb0kk982-python2-nose-1.3.7/lib/python2.7/site-packages/nose-1.3.7-py2.7.egg/statsmodels.py # trying /gnu/store/8707rsnrfi3f747pj1jvxr7bwb0kk982-python2-nose-1.3.7/lib/python2.7/site-packages/nose-1.3.7-py2.7.egg/statsmodels.pyc # trying /gnu/store/g6pi1k1py80ah53ig7g34pgp0gr2kr74-python2-six-1.10.0/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.so # trying /gnu/store/g6pi1k1py80ah53ig7g34pgp0gr2kr74-python2-six-1.10.0/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodelsmodule.so # trying /gnu/store/g6pi1k1py80ah53ig7g34pgp0gr2kr74-python2-six-1.10.0/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.py # trying /gnu/store/g6pi1k1py80ah53ig7g34pgp0gr2kr74-python2-six-1.10.0/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.pyc # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/pandas-0.18.1-py2.7-linux-x86_64.egg/statsmodels.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/pandas-0.18.1-py2.7-linux-x86_64.egg/statsmodelsmodule.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/pandas-0.18.1-py2.7-linux-x86_64.egg/statsmodels.py # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/pandas-0.18.1-py2.7-linux-x86_64.egg/statsmodels.pyc # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodelsmodule.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.py # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/six-1.10.0-py2.7.egg/statsmodels.pyc import statsmodels # directory /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__module.so # trying /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.py # /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.pyc matches /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.py import statsmodels # precompiled from /home/uzinnal/.guix-profile/lib/python2.7/site-packages/statsmodels-0.6.1-py2.7-linux-x86_64.egg/statsmodels/__init__.pyc --8<---------------cut here---------------end--------------->8--- Note that lib/python2.7/site-packages (which is on the user’s PYTHONPATH) contains a file “python2-statsmodels-0.6.1.pth”. Does this play a role here? > exec -a "$0" python3 -v -c "import ribodiff.estimatedisp" > > and try to find some insight there. Unfortunately, this didn’t tell me much more than the previous command. After numpy is loaded, the old statsmodels is loaded. > re 2): As soon as Python2 and Python3 are installed in the same profile, > we put both site-packages for both versions into PYTHONPATH, which > obviously is wrong. > > $ PYTHONPATH= guix environment --ad-hoc python@2 python > […] > [guix] $ echo $PYTHONPATH > /gnu/store/jkwp041kjy6li85n66ymxkfrr0hr2psj-profile/lib/python2.7/site-packages:/gnu/store/jkwp041kjy6li85n66ymxkfrr0hr2psj-profile/lib/python3.5/site-packages: > > A simple work-around would be to make the profile a (pseudo) virtual > environment, which is a easy as creating a file > "/gnu/store/…-profile/pyvenv.cfg". This will trigger a mechanism in > site.py to insert /gnu/store/…-profile/lib/pythonX.Y/site-packages" into > sys.path - for the current python version only! This is very good to know. I haven’t tested this (as I’m not editing the store by hand), but I suppose we could create an empty pyvenv.cfg in a profile hook when Python packages are installed. (This wouldn’t help us much for wrapper scripts, though.) -- Ricardo GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC https://elephly.net