[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

tests/test_root.py

@@ -15,9 +15,9 @@ def test_root_th1f_convert() -> None:
     th = ROOT.TH1F("h1", "h1", 50, -2.5, 2.5)
     th.FillRandom("gaus", 10000)
     h = ensure_plottable_histogram(th)
-    assert all(th.GetBinContent(i+1) == approx(iv) for i, iv in enumerate(h.values()))
+    assert all(th.GetBinContent(i + 1) == approx(iv) for i, iv in enumerate(h.values()))
     assert all(
-        th.GetBinError(i+1) == approx(ie)
+        th.GetBinError(i + 1) == approx(ie)
         for i, ie in enumerate(np.sqrt(h.variances()))
     )
 
@@ -28,12 +28,12 @@ def test_root_th2f_convert() -> None:
     th.FillRandom("xyg", 10000)
     h = ensure_plottable_histogram(th)
     assert all(
-        th.GetBinContent(i+1, j+1) == approx(iv)
+        th.GetBinContent(i + 1, j + 1) == approx(iv)
         for i, row in enumerate(h.values())
         for j, iv in enumerate(row)
     )
     assert all(
-        th.GetBinError(i+1, j+1) == approx(ie)
+        th.GetBinError(i + 1, j + 1) == approx(ie)
         for i, row in enumerate(np.sqrt(h.variances()))
         for j, ie in enumerate(row)
     )