import pywikibot
site = pywikibot.Site('my', 'wikipedia')
site
APISite("my", "wikipedia")
replace.py -page:မုဒုံမြို့ "Burma" "Myanmar"
  File "<ipython-input-5-f5c5d3711e01>", line 1
    replace.py -page:မုဒုံမြို့ "Burma" "Myanmar"
                    ^
SyntaxError: invalid syntax