soup = BeautifulSoup(
    """
    <tr class="colour blue attr1 attr2"></tr>
    <tr class="colour red attr1 attr2"></tr>
    <tr class="unwanted attr1 attr2"></tr>
    <tr class="colour blue attr3"></tr>
    <tr class="another attr1 attr2"></tr>
"""
    )
What's the equivalent of '*' for Beautifulsoup - find_all?