Gettingerror: legacy-install-failure, while installing basemap

Question

I am trying to install Basemap using pip, however at some point it reaches the error:

note: This error originates from a subprocess, and is likely not a problem with pip.
      error: legacy-install-failure
      
      × Encountered error while trying to install package.
      ╰─> numpy
      
      note: This is an issue with the package mentioned above, not pip.
      hint: See above for output from the failure.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

I do not really know what to do here, and I could not find anyone who encountered the same error. I have tried upgrading pip and setuptools, but they did not seem to help. What should I do?

P.S. I have been trying to install basemap for the past 4 days and I was not very sucessfull. If you know how to install it on MacOS, please hit me up! Thank you!

Answer 1

For Windows:

To install basemap you need to download the wheel file from this path:

https://www.lfd.uci.edu/~gohlke/pythonlibs/#basemap

for python 3.10 this will be the file:

basemap?1.3.2?cp310?cp310?win_amd64.whl

Then you have to go to the folder where the above mentioned .whl file is saved and run this command from there:

pip install basemap?1.3.2?cp310?cp310?win_amd64.whl

---

For Mac OS please refer:

https://github.com/matplotlib/basemap/releases:

Make sure you have:

brew install geos
brew install matplotlib
brew install numpy
brew install proj

Add export GEOS_DIR="/user/local/Cellar/geos/3.10.2/" to your .bash profile and reload it via:

source ~/.bash_profile

git clone --depth 1 https://github.com/matplotlib/basemap.git

then in the basemap/packages/basemap directory

pip3 install

---

For Google Colab:

!sudo apt-get install libgeos-3.6.2
!sudo apt-get install libgeos-dev
!pip install git+https://github.com/matplotlib/basemap#subdirectory=packages/basemap