PEP8 compliance.
PEP8 compliance.

Signed-off-by: Sebastian Weichwald <46f1a0bd5592a2f9244ca321b129902a06b53e03@sweichwald.de>

nkoep/pymanopt,pymanopt/pymanopt,j-towns/pymanopt,nkoep/pymanopt,tingelst/pymanopt,nkoep/pymanopt,pymanopt/pymanopt