more explicit var names

src/pyhf/infer/calculators.py

@@ -381,9 +381,13 @@ def expected_pvalues(self, sig_plus_bkg_distribution, b_only_distribution):
             corresponding to the :math:`\mathrm{CL}_{s+b}`,
             :math:`\mathrm{CL}_{b}`, and :math:`\mathrm{CL}_{s}`.
         """
+        # Calling pvalues is easier then repeating the CLs calculation here
         return [
-            self.pvalues(v, sig_plus_bkg_distribution, b_only_distribution)[-1]
-            for v in [b_only_distribution.expected_value(x) for x in [2, 1, 0, -1, -2]]
+            self.pvalues(test_stat, sig_plus_bkg_distribution, b_only_distribution)[-1]
+            for test_stat in [
+                b_only_distribution.expected_value(n_sigma)
+                for n_sigma in [2, 1, 0, -1, -2]
+            ]
         ]