some_markdown.md

##This is a test

Code blocks must be indented by 4 whitespaces. Python-Markdown has a auto-guess function which works pretty well:

print("Hello, World")
# some comment
for letter in "this is a test":
    print(letter)

In cases where Python-Markdown has problems figuring out which programming language we use, we can also add the language-tag explicitly. One way to do this would be:

:::python
print("Hello, World")

or we can highlight certain lines to draw the reader's attention:

:::python hl_lines="1 5"
print("highlight me!")
# but not me!
for letter in "this is a test":
    print(letter)   
# I want to be highlighted, too!