Python: How to replace every space in a dictionary to an underscore?

Im still a beginner so maybe the answer is very easy, but I could not find a solution (at least one I could understand) online. Currently I am learning famous works of art through the app "Anki". So I imported a deck for it online containing over 700 pieces.

Sadly the names of the pieces are in english and I would like to learn them in my mother language (german). So I wanted to write a script to automate the process of translating all the names inside the app. I started out by creating a dictionary with every artist and their art pieces (to fill this dictionary automatically reading the app is a task for another time).

art_dictionary = {
    "Wassily Kandinsky": "Composition VIII",
    "Zhou Fang": "Ladies Wearing Flowers in Their Hair",
 }

My plan is to access wikipedia (or any other database for artworks) that stores the german name of the painting (because translating it with a eng-ger dictionary often returns wrong results since the german translation can vary drastically):

1. replacing every space character inside the name to an underscore

2. letting python access the wikipedia page of said painting:

   import re
   from urllib.request import urlopen
   painting_name = "Composition_VIII" #this is manual input of course
   
   url = "wikipedia.org/wiki/" + painting_name
   page = urlopen(url)
   
   

3. somehow access the german version of the site and extracting the german name of the painting.

   html = page.read().decode("utf-8")
   
   pattern = "<title.*?>.*?</title.*?>" #I think Wikipedia stores the title like <i>Title</i>
   match_results = re.search(pattern, html, re.IGNORECASE)
   title = match_results.group()
   title = re.sub("<.*?>", "", title)
   

4. storing it in a list or variable

5. inserting it in the anki app

maybe this is impossible or "over-engineering", but I'm learning a lot along the way.

I tried to search for a solution online, but could not find anything similar to my problem.

You can use dictionary comprehension with the replace method to update all the values (names of art pieces in this case) of the dictionary.

art_dictionary = {
    "Wassily Kandinsky": "Composition VIII",
    "Zhou Fang": "Ladies Wearing Flowers in Their Hair",
 }
 
art_dictionary = {key:value.replace(' ', '_') for key,value in art_dictionary.items()}

print(art_dictionary)

# Output: {'Wassily Kandinsky': 'Composition_VIII', 'Zhou Fang': 'Ladies_Wearing_Flowers_in_Their_Hair'}