Таким образом, вы можете поймать ваш text
from bs4 import BeautifulSoup
soup = BeautifulSoup("""<h3>
<span class="method">GET </span>
[/r/
<em class="placeholder">subreddit</em>
]/api/user_flair
<span class="oauth-scope-list"><a href="https://github.com/reddit/reddit/wiki/OAuth2"><span class="api-badge oauth-scope">flair</span></a>
</span>
</h3>""")
api_badges = soup.find_all('span', {'class': 'api-badge oauth-scope'})
api_badges_txt = [api_badge.text for api_badge in api_badges]
Выход
['flair']
Если вы используете
add_space = soup.find('em').next_sibling.replace('\n', '').strip()
soup.find('h3').get_text(strip=True).replace(add_space, add_space + ' ')
, вы получите 'GET[/r/subreddit]/api/user_flair flair'