modify pymanopt version in requirements

Mokhtar Z. Alaya · Mokhtar Z. Alaya · commit cae39790dd09 · 2020-01-24T09:32:47.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -4,7 +4,7 @@ cython
 matplotlib
 sphinx-gallery
 autograd
-pymanopt== 0.2.4, python_version < '3'
-pymanopt, python_version >= '3'
+pymanopt== 0.2.4, python_version < 3
+pymanopt, python_version >= 3
 cvxopt
 pytest
