String Replace using List method

Example

>> INPUT:

myStr = "https://pythonsmallsoultions.blogspot.com/?lang=en&page=0&pageSize=10"

myStr_list = myStr.split("&")

myStr_list[1] = 'page='+str(1)

myStr = "&".join(myStr_list)

>> OUTPUT:

https://pythonsmallsoultions.blogspot.com/?lang=en&page1&pageSize=10