name = main

added if  __name__ == '__main__'

Maths/3n+1.py

@@ -1,14 +1,18 @@
-def n31(a):# a = initial number
-    c = 0
-    l = [a]
-    while a != 1:
-        if a % 2 == 0:#if even divide it by 2
-            a = a // 2
-        elif a % 2 == 1:#if odd 3n+1
-            a = 3*a +1
-        c += 1#counter
-        l += [a]
-        print(a)#optional print
-    print("It took {0} steps.".format(c))#optional finish
-    return l , c
-print(n31(43))
+def main():
+    def n31(a):# a = initial number
+        c = 0
+        l = [a]
+        while a != 1:
+            if a % 2 == 0:#if even divide it by 2
+                a = a // 2
+            elif a % 2 == 1:#if odd 3n+1
+                a = 3*a +1
+            c += 1#counter
+            l += [a]
+            print(a)#optional print
+        print("It took {0} steps.".format(c))#optional finish
+        return l , c
+    print(n31(43))
+    
+if __name__ == '__main__':
+    main()

Maths/FindMin.py

@@ -1,8 +1,12 @@
-def findMin(x):
-    minNum = x[0]
-    for i in x:
-        if minNum > i:
-            minNum = i
-    return minNum
+def main():
+    def findMin(x):
+        minNum = x[0]
+        for i in x:
+            if minNum > i:
+                minNum = i
+            return minNum
 
-print(findMin([0,1,2,3,4,5,-3,24,-56])) # = -56
+    print(findMin([0,1,2,3,4,5,-3,24,-56])) # = -56
+
+if __name__ == '__main__':
+    main()