Python basemap module impossible to import

问题

I have troubles to import the basemap module of mpl_toolkits in python. Here is what I get when I run the test.py script from the module directory:

/usr/lib/python2.7/dist-packages/mpl_toolkits/basemap$ python test.py
Traceback (most recent call last):
File "test.py", line 1, in <module>
from mpl_toolkits.basemap import Basemap, shiftgrid
ImportError: No module named basemap

I can't get it since sys.path gives a list of paths where I am sure the directory "basemap" is, in the "mpl_toolkits" directory. There is no problem to import mpl_toolkits. Here is a thing I tried, to manually add the path, and the result:

>>> import sys
>>> sys.path.append('/usr/lib/python2.7/dist-packages/mpl_toolkits/basemap')
>>> import basemap
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "basemap/__init__.py", line 30, in <module>
from mpl_toolkits.basemap import pyproj
ImportError: No module named basemap

I tried to uninstall an reinstall basemap from source (carefully following these instructions), from apt-get, from conda, but it does not change anything: I can't import basemap.

Thank you for your help

回答1:

I was facing this issue and I was able to solve it using anaconda

After activating my profile

source activate MyProfileName
conda install basemap

from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
# setup Lambert Conformal basemap.
# set resolution=None to skip processing of boundary datasets.
m = Basemap(width=12000000,height=9000000,projection='lcc',
            resolution=None,lat_1=45.,lat_2=55,lat_0=50,lon_0=-107.)
m.bluemarble()
plt.show()

回答2:

I was in the same situation until a minute ago, installing it trough this made the trick:

sudo apt-get install libgeos-3.5.0
sudo apt-get install libgeos-dev
sudo pip install https://github.com/matplotlib/basemap/archive/master.zip

回答3:

I had the same issue; trying to access basemap using sys would produce that error. But this worked for me:

import mpl_toolkits
mpl_toolkits.__path__.append('/usr/lib/python2.7/dist-packages/mpl_toolkits/')
from mpl_toolkits.basemap import Basemap

回答4:

I do not use Anaconda, using MacOS, and I have found this solution works for me. I guess it is straight forward, and should work with both Linux and MacOs.

https://stackoverflow.com/a/53171723/2570842

brew install geos
pip3 install https://github.com/matplotlib/basemap/archive/master.zip

For Ubuntu,

sudo apt-get install geos
sudo pip3 install https://github.com/matplotlib/basemap/archive/master.zip

回答5:

Download it from here and install it manually. Make sure to download the right version(i.e. if you are Python3.6 then download basemap‑1.2.0‑cp36‑cp36m‑win_amd64.whl)

Reference: https://stackoverflow.com/a/33020524/8730201

回答6:

I followed this answer:

https://stackoverflow.com/a/43234894/3818277

Though, I can have wrongly installed mpl_toolkits (or I do not know), in my case I found out, that basemap is located in pymodules like that:

    mpl_toolkits.__path__.append('/usr/lib/pymodules/python2.7/mpl_toolkits/')
    from mpl_toolkits.basemap import Basemap

So this worked for me on ubuntu 14.04 LTS.

回答7:

I was able to get basemap working through the following steps. Note that I did a --user install.

Create shallow clone of basemap (git clone --depth 1 git@github.com:matplotlib/basemap.git) or extract the tarball of the current version.
Install the necessary prerequisite libraries (on Ubuntu, libgeos-dev, libproj-dev, libgeos++-dev, proj-data, proj-bin, libgeos-c1v5, libgeos, libproj12, I think).
pip install --user pyproj matplotlib geos (not actually sure if geos is necessary).

Now, here's where I had to improvise a little bit. When I install basemap using python setup.py install, it creates a new egg directory among my Python packages. That directory contains an mpl_toolkits subdirectory which duplicates a separate mpl_toolkits directory installed by matplotlib.

So, instead, I did

python setup.py build_ext --inplace
cp -a lib/mpl_toolkits/basemap /my/python/packages/dir/mpl_toolkits/basemap
cp lib/_geoslib.so /my/python/packages/dir

I am now able to run examples like simpletest.py.