This Python function downloads a given range of Phaser World back issues.

fetch_phaser_world.py

def download(issues):
    
    """This function downloads a given range of Phaser World back
    issues into the current working directory. Any arguments will
    be passed to the `range` function to define the list of issue
    numbers that will be downloaded."""

    import os

    url_template = "https://phaser.io/images/newsletter/pdf/issue{}.pdf"
    pdf_template = '"./PhaserWorld{}.pdf"'
    cmd_template = "curl -o {} {}"

    for n in range(*issues):

        url = url_template.format(n)
        pdf = pdf_template.format(n)
        cmd = cmd_template.format(path, url)
        os.system(cmd)