···

       
165
       
 
       


     

       
166
       
 
       
```py

     

       
167
       
 
       
#! /usr/bin/env nix-shell

     

       
168
       
-
       
#! nix-shell -i 'python3.withPackages(ps: [ps.numpy])'

     

       
169
       
 
       


     

       
170
       
 
       
import numpy

     

       
171
       
 
       


     

···

       
165
       
 
       


     

       
166
       
 
       
```py

     

       
167
       
 
       
#! /usr/bin/env nix-shell

     

       
168
       
+
       
#! nix-shell -i python3 -p 'python3.withPackages(ps: [ps.numpy])'

     

       
169
       
 
       


     

       
170
       
 
       
import numpy

     

       
171