--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/table-summarize.py	Mon Dec 08 15:03:06 2025 +0000
@@ -0,0 +1,39 @@
+#! /usr/bin/env python
+
+from __future__ import print_function
+
+import csv
+import sys
+from collections import Counter, OrderedDict
+
+
+def main(table):
+    with open(
+        table, "r", newline="", encoding="utf-8"
+    ) as table_f:  # Improved file opening
+        rdr = csv.DictReader(table_f, delimiter="\t", dialect="excel")
+
+        # Check if fieldnames exist before proceeding to avoid potential errors
+        if not rdr.fieldnames or len(rdr.fieldnames) <= 1:
+            print("No data columns found in the table.")
+            return
+
+        summary = OrderedDict()
+        for row in rdr:  # Iterate directly without creating a list in memory
+            for name in rdr.fieldnames[1:]:
+                summary.setdefault(name, Counter()).update(
+                    [row[name]]
+                )  # More efficient counting
+
+        total = rdr.line_num - 1  # get the number of rows
+
+        print("Summary:")
+        for name, results in summary.items():
+            print(f"{name}:")  # f-string
+            for result, num in results.items():
+                if result:
+                    print(f"\t - {result}: {num} of {total}")  # f-string
+
+
+if __name__ == "__main__":
+    main(sys.argv[1])