Create xyz_there.py

Author: TudorMurariu

String-2/xyz_there.py

@@ -0,0 +1,12 @@
+def xyz_there(str):
+  while str.find('xyz') >= 0:
+    x = str.find('xyz') 
+    if x == 0:
+      return True
+    elif x > 0:
+      if str[x-1] != '.':
+        return True
+    str = str.replace('.xyz','')
+  return False
+
+# more on https://www.w3schools.com/python/ref_string_find.asp