First commit

fizzbuzz.py

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+import sys
+
+print "Welcome to the Fizzbuzz Game!" 
+
+# defining n. 
+# first option command line argument. command line can have: 1 argument (no n), 2 arguments (n) or more than 2 arguments (mistake/error)
+# In case of 2 arguments, the second argument is n. otherwise n will be equal to user's input. 
+#possible problems: argument or input should be an integer in type string. If that is not the case than we have a problem.  
+# we are instructed to handel error.  
+# it will arise when we try to convert from type string to type integer. 
+if len(sys.argv)==2:
+    n=sys.argv[1]
+else:                               #This will execute if the user provide n, or provided more than 2 arguments.  
+    n=raw_input ("Please enter a number. We will play Fizzbuzz up to the number you choose.     ")
+while True: 
+    try:
+        n=int(n)
+        break
+    except Exception, e:
+        #while (type(n)==int)==False:
+        n=raw_input ("Please enter a number. We will play Fizzbuzz up to the number you choose.     ")
+            #try:
+        #        n=int(n)
+         #   except Exception, e:
+          #      pass  
+
+# printing fizzbuzz up to n
+print "Fizz buzz counting up to {}".format (n)
+for num in range (1,n+1):
+    if (num%5==0) & (num%3==0):
+        print("Fizzbuzz")
+    elif num%5==0:
+        print("Buzz")
+    elif num%3==0:
+        print("Fizz")
+    else:
+        print(num)
+
+