gh-37672: src/sage/modular/quasimodform/ring.py: Fix pycodestyle warning

    
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URL: #37672
Reported by: Matthias Köppe
Reviewer(s): Frédéric Chapoton

src/sage/modular/quasimodform/ring.py

@@ -822,6 +822,6 @@ def basis_of_weight(self, weight):
             basis += [f*E2_pow for f
                       in M.modular_forms_of_weight(weight - 2*j).basis()]
             E2_pow *= E2
-        if not weight%2:
+        if not weight % 2:
             basis.append(E2_pow)
         return basis