diff --git a/scripts/advanced_statistics.py b/scripts/advanced_statistics.py
index 58500ac..d825be5 100755
--- a/scripts/advanced_statistics.py
+++ b/scripts/advanced_statistics.py
@@ -31,6 +31,8 @@ for command, ts in zip(commands, times):
     print()
     print("  percentiles:")
     print("     P_05 .. P_95:    {:.3f} s .. {:.3f} s".format(p05, p95))
-    print("     P_25 .. P_75:    {:.3f} s .. {:.3f} s  "
-          "(IQR = {:.3f} s)".format(p25, p75, iqr))
+    print(
+        "     P_25 .. P_75:    {:.3f} s .. {:.3f} s  "
+        "(IQR = {:.3f} s)".format(p25, p75, iqr)
+    )
     print()
diff --git a/scripts/plot_histogram.py b/scripts/plot_histogram.py
index 7e9e8b2..277b526 100755
--- a/scripts/plot_histogram.py
+++ b/scripts/plot_histogram.py
@@ -18,12 +18,14 @@ with open(args.file) as f:
 commands = [b["command"] for b in results]
 all_times = [b["times"] for b in results]
 
-plt.hist(all_times,
-         label=commands,
-         bins="auto",
-         histtype="bar",
-         range=(np.min(all_times), np.max(all_times)))
-plt.legend(prop={'family': ['Source Code Pro', 'Fira Mono', 'Courier New']})
+plt.hist(
+    all_times,
+    label=commands,
+    bins="auto",
+    histtype="bar",
+    range=(np.min(all_times), np.max(all_times)),
+)
+plt.legend(prop={"family": ["Source Code Pro", "Fira Mono", "Courier New"]})
 
 plt.xlabel("Time [s]")
 if args.title:
diff --git a/scripts/plot_parametrized.py b/scripts/plot_parametrized.py
index 17c417e..82170a2 100755
--- a/scripts/plot_parametrized.py
+++ b/scripts/plot_parametrized.py
@@ -9,8 +9,12 @@ import matplotlib.pyplot as plt
 
 parser = argparse.ArgumentParser(description=__doc__)
 parser.add_argument("file", help="JSON file with benchmark results", nargs="+")
-parser.add_argument("--parameter-name", metavar="name", type=str,
-                    help="Name of the parameter / x-axis label")
+parser.add_argument(
+    "--parameter-name",
+    metavar="name",
+    type=str,
+    help="Name of the parameter / x-axis label",
+)
 args = parser.parse_args()
 
 for filename in args.file:
@@ -21,10 +25,7 @@ for filename in args.file:
     times_mean = [b["mean"] for b in results]
     times_stddev = [b["stddev"] for b in results]
 
-    plt.errorbar(x=parameter_values,
-                 y=times_mean,
-                 yerr=times_stddev,
-                 capsize=2)
+    plt.errorbar(x=parameter_values, y=times_mean, yerr=times_stddev, capsize=2)
 
 plt.xlabel(args.parameter_name)
 plt.ylabel("Time [s]")
diff --git a/scripts/plot_whisker.py b/scripts/plot_whisker.py
index fd9ad96..c2ca7e7 100755
--- a/scripts/plot_whisker.py
+++ b/scripts/plot_whisker.py
@@ -15,7 +15,9 @@ import matplotlib.pyplot as plt
 parser = argparse.ArgumentParser(description=__doc__)
 parser.add_argument("file", help="JSON file with benchmark results")
 parser.add_argument("--title", help="Plot Title")
-parser.add_argument("--labels", help="Comma-separated list of entries for the plot legend")
+parser.add_argument(
+    "--labels", help="Comma-separated list of entries for the plot legend"
+)
 args = parser.parse_args()
 
 with open(args.file) as f:
diff --git a/scripts/welch_ttest.py b/scripts/welch_ttest.py
index eaea55f..30071a4 100755
--- a/scripts/welch_ttest.py
+++ b/scripts/welch_ttest.py
@@ -33,7 +33,6 @@ print("t = {:.3}, p = {:.3}".format(t, p))
 print()
 
 if dispose:
-    print("There is a difference between the "
-          "two benchmarks (p < {}).".format(th))
+    print("There is a difference between the two benchmarks (p < {}).".format(th))
 else:
     print("The two benchmarks are almost the same (p >= {}).".format(th))