arrayOne = ["old string one", "new string one"]
arrayTwo = ["old string two", "new string two"]

# Variable 'path' collected from command line input
f = open(path, "r", encoding="utf8")
newFile = open(path.replace(".xml", "-new.xml"), "w", encoding="utf8")

def replace(a,b):
    for data in f:
        for datatype in (arrayOne, arrayTwo):
            data = data.replace(datatype[a], datatype[b])
        newFile.write(data)
    newFile.close()

replace(0,1)

f.close()

myDictionary = {'old string one' : 'new string one',
                'old string two' : 'new string two'}

# Variable 'path' collected from command line input
f = open(path, "r", encoding="utf8")
newFile = open(path.replace(".xml", "-new.xml"), "w", encoding="utf8")
counter = 0

for data in f:
    for key in myDictionary:
        if key in data:
            data = data.replace(key, myDictionary[key])
            counter += 1
    newFile.write(data)
newFile.close()

f.close()

print 'Replaced', path, 'Made', counter, 'replacements.'