Closed issue by scaramacai on void-packages repository

https://github.com/void-linux/void-packages/issues/15751

Description:
xbps-install python-matplotlib python3-matplotlib fails with
transaction error
I succeeded in installing packages by issuing separate commands (python3 first, but did not try the reverse):
xbps-install python3-matplotlib
xbps-install python-matplotlib

### System

* xuname:  
  *Void 5.2.21_1 x86_64-musl GenuineIntel uptodate rF*
* package:  
  *python-matplotlib-2.2.4_2*
 *python3-matplotlib-3.1.1_1*

### Expected behavior
xbps-install python-matplotlib python3-matplotlib should work correctly
### Actual behavior
It fails with errors: it seems that some file already installed by python-matplotlib are
also in python3-matplotlib
### Steps to reproduce the behavior
xbps-install python-matplotlib python3-matplotlib