I read you should write it as an interactive script e.g.:

    input("Build X")
    input("Build Y")
    input("Zip X & Y")
    input("Upload release")

THen run the script and press enter as you do the steps. It means if you're interrupted as your proceed, you can resume exacly where you were before.

If you implement it as functions:

    def buildX():
        input("Build X")
    def buildY():
        input("Build Y")
    def ZipUp():
        input("Zip X & Y")
    def Upload():
        input("Upload release")
    if __name__ == '__main__':
        buildX()
        buildY()
        ZipUp()
        Upload()

Then you can automate parts piecemeal.