numpy.core.multiarray failed to import

[guicostas]

RuntimeError: module compiled against API version 0xc but this version of numpy is 0xb
Traceback (most recent call last):
File "brazil.py", line 3, in
from mpl_toolkits.basemap import Basemap
File "/usr/local/lib/python2.7/dist-packages/mpl_toolkits/basemap/init.py", line 37, in
import _geoslib
ImportError: numpy.core.multiarray failed to import

[molinav]

Could you provide some more information about your working environment? This would mean:

• Operating system.
• Python version (I guess 2.7).
• Channel used to install things (e.g. PyPI, Anaconda, GNU/Linux repositories).

If you are using either Windows or GNU/Linux, I would recommend you to install basemap using pip. Since version 1.3.0 we provide precompiled binary wheels and it is as simple as doing:

python -m pip install basemap

In case you need the high-resolution auxiliary datasets, you would have to install them manually:

python -m pip install basemap-data-hires

[molinav]

I am closing this issue due to lack of feedback. From your traceback

RuntimeError: module compiled against API version 0xc but this version of numpy is 0xb

this is the typical problem that occurs when you build basemap using a newer numpy version (e.g. >= 1.20) but later run it with an elder numpy version (e.g. < 1.20). There has been effort in remediating this issue by creating GitHub Actions that generate precompiled binary wheels for different platforms (in your case it looks like GNU/Linux).

I would just recommend you install the precompiled wheels from PyPI if you cannot (or do not want to) build from source. In addition, the basemap repository now contains a pyproject.toml file with the proper definition of the build dependencies, so this problem should not be appearing anymore.