Fix imports

Julien LepillerMon Jul 01 10:06:45+0200 2019

d20aad2

Fix imports

more/packages/python.scm

3636
  #:use-module (gnu packages python-xyz)
3737
  #:use-module (gnu packages qt)
3838
  #:use-module (gnu packages serialization)
39+
  #:use-module (gnu packages sphinx)
3940
  #:use-module (gnu packages time)
4041
  #:use-module (gnu packages tls)
4142
  #:use-module (gnu packages version-control)