diff --git a/sio2/sisr2/30-Python/regex.py b/sio2/sisr2/30-Python/regex.py
new file mode 100755
index 0000000..3fa3400
--- /dev/null
+++ b/sio2/sisr2/30-Python/regex.py
@@ -0,0 +1,25 @@
+#!/usr/bin/python3
+import sys
+import re
+volip={}
+hostip={}
+
+regexp = "^(\S+) (\S+) (\S+) \[([^]]+)\] \"(\w+) (\S+).*\" (\d+) (\S+)"
+for line in sys.stdin: # on lit sur l’entrée standard
+	line = line.rstrip () # on enleve le retour ligne
+	res = re.match (regexp, line)
+	if res:
+		(host, rfc931, user, date, request, url, status, byte) = res.groups()
+		host = res.group (1)
+		byte = int(res.group (8))
+		print ('host : ', host, ' byte : ', byte)
+		#calcul nb ip apparitions
+		if host not in hostip:
+        		hostip[host] = 1
+			volip[host] = byte
+       		else:
+       			hostip[host] = hostip[host]+1
+			volip[host] = volip[host]+byte
+
+for addr in sorted(hostip.keys()):
+	print(addr, " : ", hostip[addr])