add script

eulerplot.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+import argparse
+import csv
+import datetime
+import pathlib
+
+import matplotlib.pyplot as plt
+
+def plot(paths):
+    for path in paths:
+        timestamps = [datetime.datetime.now()]
+        with open(path) as f:
+            reader = csv.reader(f)
+            for (_, _, tstr) in reader:
+                timestamp = datetime.datetime.strptime(tstr, "%d %b %y (%H:%M)")
+                timestamps.append(timestamp)
+
+        plt.stairs(range(1, len(timestamps)), edges=timestamps[::-1], baseline=None)
+
+    plt.show()
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-f", "--file", nargs='+', type=pathlib.Path, required=True, help="solve history CSV")
+
+    args = parser.parse_args()
+    plot(args.file)