I stumbled when I tried to install Basemap, so a memorandum

After browsing at the bookstore, Basemap (A module that allows you to easily plot a map with python. It is very useful when you want to visualize data on a map.) I went back and installed it immediately because there was something that looked cool.

You can draw a cool map with the following simple code. I stumbled upon the installation, so a memo as a memorandum.

import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap
%matplotlib inline

m = Basemap()
m.bluemarble()

20ca7dd8.png

Execution environment

Python 3.7.6 macOS Mojave 10.14.6 Jupyter Notebook

Installation method

At first.

$ brew install geos

Suddenly stumble below.

$ wget https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz

The following error was thrown. Hmm. .. Apparently there is a problem with wget.

dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
  Referenced from: /usr/local/bin/wget
  Reason: image not found
zsh: abort      wget 

Check with which. It seems that wget is installed.

$ which wget
/usr/local/bin/wget

Try upgrading wget.

$ brew upgrade wget

==> Upgrading 1 outdated package:
wget 1.20.3 -> 1.20.3_2

The upgrade went well, so I tried again.

$ wget https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz

Download failed.

$ wget https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz
--2020-01-05 19:35:46--  https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz
jaist.dl.sourceforge.net (jaist.dl.sourceforge.net)Is inquiring to DNS... 2001:df0:2ed:feed::feed, 150.65.7.130
jaist.dl.sourceforge.net (jaist.dl.sourceforge.net)|2001:df0:2ed:feed::feed|:Connecting to 443...Connected.
error: jaist.dl.sourceforge.net certificate(Issuer: `CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US')Failed to verify:
The issuer's permissions could not be verified.
jaist.dl.sourceforge.To connect to the net without checking safety`--no-check-certificate'Please use.

Ah, I see I see. once again. Try again with `--no-check-certificate'.

$ wget https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz --no-check-certificate

--2020-01-05 19:36:28--  https://jaist.dl.sourceforge.net/project/matplotlib/matplotlib-toolkits/basemap-1.0.7/basemap-1.0.7.tar.gz
jaist.dl.sourceforge.net (jaist.dl.sourceforge.net)Is inquiring to DNS... 2001:df0:2ed:feed::feed, 150.65.7.130
jaist.dl.sourceforge.net (jaist.dl.sourceforge.net)|2001:df0:2ed:feed::feed|:Connecting to 443...Connected.
warning: jaist.dl.sourceforge.net certificate(Issuer: `CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US')Failed to verify:
The issuer's permissions could not be verified.
Sent a connection request via HTTP, waiting for a response... 200 OK
length: 129694711 (124M) [application/x-gzip]
`basemap-1.0.7.tar.gz'Saving in

basemap-1.0.7.tar.g 100%[===================>] 123.69M   121KB/s time 21m 6s

2020-01-05 19:57:34 (100 KB/s) - `basemap-1.0.7.tar.gz'Save to[129694711/129694711]

Then execute the following command.

$ tar zxvf basemap-1.0.7.tar.gz
$ cd basemap-1.0.7
$ python setup.py install

I got an error after python setup.py install. .. It's long.


ModuleNotFoundError: No module named 'numpy.random.mtrand'

This time there seems to be a problem with numpy, so uninstall → install.

$ pip3 uninstall numpy

$ pip3 install numpy

After reinstalling, do the following again.

$ python setup.py install

It went well! !! !!

However, when I actually tried to use it with jupyter, I got an error.

ImportError: No module named 'mpl_toolkits.basemap'

If you are looking for various things, you should use this command.

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

However, it is not a zip file. Error.

zipfile.BadZipFile: File is not a zip file

Executed because it is possible to drop netCDF4.

$ pip3 install netCDF4

I finally got it! !!

Articles that I used as a reference

Draw a map easily with matplotlib.basemap

When basemap installation fails on python3 (Mojave)

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