Tiny hex dumper

python/hexdump.py

@@ -0,0 +1,36 @@
+import sys
+
+def hexdump(data):
+  printed = []
+
+  print(f"{0:08x}", end="  ")
+
+  for idx in range(len(data)):
+    print(f"{data[idx]:02x}", end=" ")
+
+    if data[idx] < 129 and chr(data[idx]).isprintable():
+      printed.append(chr(data[idx]))
+    else:
+      printed.append(".")
+
+    if (idx + 1) % 8 == 0:
+      print(end=" ")
+
+    if idx == len(data) - 1:
+      fmt = ""
+
+      if (idx + 1) % 16 != 0:
+        fmt = " " * (((16 - ((idx + 1) % 16)) * 3) + 1 + int((idx + 1) % 16 < 8))
+
+      print(f"{fmt}|{''.join(printed)}|")
+      print(f"{idx + 1:08x}")
+    elif (idx + 1) % 16 == 0:
+      print(f"|{''.join(printed)}|")
+      print(f"{idx + 1:08x}", end="  ")
+      printed.clear()
+
+if len(sys.argv) > 1:
+  with open(sys.argv[1], "rb") as handle:
+    data = handle.read()
+
+  hexdump(data)