diff --git a/sio2/sisr2/30-Python/ex1.py b/sio2/sisr2/30-Python/ex1.py
new file mode 100644
index 0000000..0040d58
--- /dev/null
+++ b/sio2/sisr2/30-Python/ex1.py
@@ -0,0 +1,3 @@
+R=input('Donne le rayon :')
+pi= 3.14159
+print('le périmètre est de: ',float(2)*pi*float(R))
diff --git a/sio2/sisr2/30-Python/ex2.py b/sio2/sisr2/30-Python/ex2.py
new file mode 100644
index 0000000..75605c5
--- /dev/null
+++ b/sio2/sisr2/30-Python/ex2.py
@@ -0,0 +1,23 @@
+tbl=[]
+nbl=5
+i=0
+moy=0
+for i in range (5):
+
+	nb=input('Nombre :')
+	tbl.append(float(nb))
+
+petit=tbl[0]
+grand=tbl[0]
+for nb in tbl:
+	if petit >nb:
+                petit=nb
+	if grand < nb:
+		grand=nb
+	moy = moy + nb
+for nb in range (nbl):
+	print (tbl[nb])
+
+moyenne=moy/nbl
+
+print ('plus petite valeur: ',petit,' plus grande valeur: ',grand,'moyenne:',moyenne) 
diff --git a/sio2/sisr2/30-Python/ex3.py b/sio2/sisr2/30-Python/ex3.py
new file mode 100644
index 0000000..7df712c
--- /dev/null
+++ b/sio2/sisr2/30-Python/ex3.py
@@ -0,0 +1,13 @@
+txt=str(input('écrivez :'))
+
+tabmot=txt.split(" ")
+cptmot= {}
+
+for mot in tabmot:
+	if not mot in cptmot:
+		cptmot[mot]=1
+	else:
+		cptmot[mot]=cptmot[mot]+1
+
+for mot in cptmot.keys():
+	print (mot,":",cptmot[mot])
diff --git a/sio2/sisr2/30-Python/exo-python-1.pdf b/sio2/sisr2/30-Python/exo-python-1.pdf
new file mode 100644
index 0000000..b483d01
Binary files /dev/null and b/sio2/sisr2/30-Python/exo-python-1.pdf differ
diff --git a/sio2/sisr2/30-Python/test.py b/sio2/sisr2/30-Python/test.py
new file mode 100644
index 0000000..1d057c6
--- /dev/null
+++ b/sio2/sisr2/30-Python/test.py
@@ -0,0 +1 @@
+print ("Bonjour.")