spiceypy/utils/spice.so image not found when trying to import spiceypy from script

[jmend327]

Hello, I receive the following error when trying to import spiceypy:

Traceback (most recent call last): File "/Users/Owner/spitest.py", line 1, in <module> import spiceypy File "/usr/local/lib/python2.7/site-packages/spiceypy/__init__.py", line 25, in <module> from .spiceypy import * File "/usr/local/lib/python2.7/site-packages/spiceypy/spiceypy.py", line 27, in <module> from .utils.libspicehelper import libspice File "/usr/local/lib/python2.7/site-packages/spiceypy/utils/libspicehelper.py", line 34, in <module> libspice = CDLL(sitePath) File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/__init__.py", line 365, in __init__ self._handle = _dlopen(self._name, mode) OSError: dlopen(/usr/local/lib/python2.7/site-packages/spiceypy/utils/spice.so, 6): image not found

I installed through pip install spiceypy. If it helps, nothing is returned when I type in which spiceypy either. Any help would be appreciated, thanks!

[Dr. Andrew Annex]

Ah yes I think I ran across this last night, try uninstalling spiceypy and then installing it using the command “pip install spiceypy --no-cache-dir” The “which spiceypy” command shouldn’t do anything as spiceypy is just a Python package and does not put any executables in your PATH variable. Let me know if that works

…

-Andrew Annex

On Nov 10, 2017, at 1:32 PM, jmend327 ***@***.***> wrote: Hello, I receive the following error when trying to import spiceypy: Traceback (most recent call last): File "/Users/Owner/spitest.py", line 1, in <module> import spiceypy File "/usr/local/lib/python2.7/site-packages/spiceypy/__init__.py", line 25, in <module> from .spiceypy import * File "/usr/local/lib/python2.7/site-packages/spiceypy/spiceypy.py", line 27, in <module> from .utils.libspicehelper import libspice File "/usr/local/lib/python2.7/site-packages/spiceypy/utils/libspicehelper.py", line 34, in <module> libspice = CDLL(sitePath) File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/__init__.py", line 365, in __init__ self._handle = _dlopen(self._name, mode) OSError: dlopen(/usr/local/lib/python2.7/site-packages/spiceypy/utils/spice.so, 6): image not found I installed through pip install spiceypy. If it helps, nothing is returned when I type in which spiceypy either. Any help would be appreciated, thanks! — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[Dr. Andrew Annex]

to further explain, there is some odd interaction with pip and setuptools from my experience last night, this issue occurred when pip assumes to use bdist_wheel instead of install so it skips building the spice shared library (spice.so). I think this can be fixed by overriding the bdist_wheel behavior or maybe there is a better way to do this.

[jmend327]

Oh I see, thanks. I get this error when trying to run pip install spiceypy —no-cache-dir:

Invalid requirement: '—no-cache-dir'
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/pip/req/req_install.py", line 82, in init
req = Requirement(req)
File "/usr/local/lib/python2.7/site-packages/pip/_vendor/packaging/requirements.py", line 96, in init
requirement_string[e.loc:e.loc + 8]))
InvalidRequirement: Invalid requirement, parse error at "'\xe2\x80\x94no-ca'"

[Dr. Andrew Annex]

The first dash should really be two dashes ie --no-cache-dir I think my email changed the character. That error just means the command is not recognized due to the typo.

[jmend327]

That worked, thanks!