How to parse a HTML file with table using Python

class MyHTMLParser(HTMLParser):

    def handle_starttag(self, tag, attrs):
        if tag == 'tr':
            for class in attrs:
                if class == 'Table_row'

p = MyHTMLParser()
p.feed(ht)

<table class="Table_rows" cellspacing="0" rules="all" border="1" id="MyDataGrid" style="width:700px;border-collapse:collapse;">

                    <tr class="Table_Heading">

                        <td>STATION CODE</td><td>STATION NAME</td><td>SCHEDULED ARRIVAL</td><td>SCHEDULED DEPARTURE</td><td>ACTUAL/ EXPECTED ARRIVAL</td><td>ACTUAL/ EXPECTED DEPARTURE</td>

                    </tr><tr class="Table_row">

                        <td>TVC </td><td style="width:160px;">ORIGON</td><td>Starting Station </td><td>05:00, 07 May 2011</td><td>Starting Station</td><td>05:00, 07 May 2011</td>

                    </tr><tr class="alternat_table_row">

                        <td>TVP </td><td>NEY YORK</td><td>05:04, 07 May 2011</td><td>05:05, 07 May 2011</td><td>05:04, 07 May 2011</td><td>05:05, 07 May 2011</td>

</tr>
</table>

from HTMLParser import HTMLParser

class MyHTMLParser(HTMLParser):
    def handle_starttag(self, tag, attrs):
        if tag == 'tr':
            for name, value in attrs:
                if name == 'class':
                    print 'Found class', value

p = MyHTMLParser()
p.feed(ht)

Found class Table_Heading
Found class Table_row
Found class alternat_table_row

from BeautifulSoup import BeautifulSoup

html = '''
<td>STATION CODE</td><td>STATION NAME</td><td>SCHEDULED ARRIVAL</td><td>SCHEDULED DEPARTURE</td><td>ACTUAL/ EXPECTED ARRIVAL</td><td>ACTUAL/ EXPECTED DEPARTURE</td>
</tr><tr class="Table_row">
<td>TVC </td><td style="width:160px;">ORIGON</td><td>Starting Station </td><td>05:00, 07 May 2011</td><td>Starting Station</td><td>05:00, 07 May 2011</td>
'''

soup = BeautifulSoup(html)
tag = soup.findAll('td', limit=2)
tag_O = soup.findAll('td')[7]

for i in range(len(tag)):
    print tag[i].string
print tag_O.string

'''Output-->
STATION CODE
STATION NAME
ORIGON
'''