Half a submission for the pycon 2020 Rube Codeberg challenge - unfinished

hello.svg

<svg height="200" width="200" xmlns="http://www.w3.org/2000/svg" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xlink="http://www.w3.org/1999/xlink"><text fill="green" x="30" y="100">Hello World! 🦄<animateTransform attributeName="transform" attributeType="XML" begin="0s" dur="10s" from="0" repeatCount="indefinite" to="360" type="rotate"></animateTransform></text></svg>

helloworld.py

from bs4 import BeautifulSoup

soup = BeautifulSoup(
    '''<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events"><text /></svg>''',
    features='html.parser'
)

get_text = lambda: soup.svg.find('text')

def append_string(c):
    text = get_text()
    text.string = text.string + c if text.string else c

if __name__ == '__main__':
    # Set size
    soup.svg['height'] = 200
    soup.svg['width'] = 200
    # Set text origin
    get_text()['x'] = 30
    get_text()['y'] = 100
    get_text()['fill'] = 'green'
    # Set content. Might as well write it character by character
    for c in 'Hello World! 🦄': append_string(c)

    # Set animation
    animation_tag = soup.new_tag('animateTransform')
    animation_tag['attributeName'] = "transform"
    animation_tag['attributeType'] = "XML"
    animation_tag['type'] = "rotate"
    animation_tag['from'] = "0"
    animation_tag['to'] = "360"
    animation_tag['begin'] = "0s"
    animation_tag['dur'] = "10s"
    animation_tag['repeatCount'] = "indefinite"
    get_text().append(animation_tag)

    # Write
    with open('hello.svg', 'wb') as f: f.write(soup.encode())