How to convert a HTML file to XML file?

best way to convert the this html file into an xml file using python

this html is https://mail.google.com/mail/?ui=2&ik=a0b1e46c9c&view=att&th=1296be43b8e3bbd9&attid=0.1&disp=inline&zw : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><META http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body> <div bgcolor="#48486c"> <table width="720" border="0" cellspacing="0" cellpadding="0" align="center" background="http://title.jpg" height="130"> <tr height="129"> <td width="719" height="129"></td> <td width="1" height="129"></td> </tr> <tr height="1"> <td width="720" height="1"></td> <td width="1" height="1"></td> </tr> </table> <table width="720" border="0" cellspacing="0" cellpadding="0" align="center" height="203"> <tr height="20"> <td width="719" height="20"></td> <td width="1" height="20"></td> </tr> <tr height="69"> <td width="719" height="69" valign="top" align="left"> <table width="719" border="1" cellspacing="2" cellpadding="0"> <tr> <td bgcolor="a5fdf8" width="390">Stream Name</td> <td bgcolor="a5fdf8" width="61">Status</td> <td bgcolor="a5fdf8" width="61">Duration</td> <td bgcolor="a5fdf8" width="185">Start</td> </tr> <tr bgcolor="white"> <td width="390">c:\streams\ours\Sony_AVCHD_Test_Discs_60Hz_00001.m2ts</td> <td width="61">----</td> <td width="61">00:00:02</td> <td width="185">2010/06/15-15:06:17</td> </tr> </table> </td> <td width="1" height="69"></td> </tr> <tr height="113"> <td width="720" height="113" colspan="2" valign="top" align="left"> <table width="721" border="1" cellspacing="2" cellpadding="0"> <tr bgcolor="a5fdf8"> <td width="299">Test Category</td> <td width="61">Error</td> <td width="62">Warning</td> <td width="275">Details</td> </tr> <tr bgcolor="white"> <td width="299">All Tests (Sony_AVCHD_Test_Discs_60Hz_00001.m2ts)</td> <td width="61">34787</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> ETSI TR-101-290 Tests</td> <td width="61">No Lic</td> <td width="61">No Lic</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> ISO/IEC Transport Stream Tests</td> <td width="61">No Lic</td> <td width="61">No Lic</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> System Data T-STD Tests</td> <td width="61">No Lic</td> <td width="61">No Lic</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Prog(1)</td> <td width="61">34787</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> VES(0xe0)</td> <td width="61">34787</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> H.264/AVC Conformance</td> <td width="61">34718</td> <td width="61">0</td> <td width="275"> <a>Sony_AVCHD_Test_Discs_60Hz_00001.m2ts_Prog(1)_PID(0x1011)_H264_Conf.txt</a> </td> </tr> <tr bgcolor="white"> <td width="299"> Sequence</td> <td width="61">0</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Picture</td> <td width="61">0</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Slice</td> <td width="61">0</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Macroblock</td> <td width="61">34718</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Block</td> <td width="61">0</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> HRD Tests</td> <td width="61">69</td> <td width="61">0</td> <td width="275"> <a>Sony_AVCHD_Test_Discs_60Hz_00001.m2ts_Prog(1)_PID(0x1011)_H264_HRD.txt</a> </td> </tr> <tr bgcolor="white"> <td width="299"> HRD level</td> <td width="61">69</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Video T-STD Tests</td> <td width="61">No Lic</td> <td width="61">No Lic</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> AES(0xfd)</td> <td width="61">0</td> <td width="61">0</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Audio Level Tests</td> <td width="61">Disabled</td> <td width="61">Disabled</td> <td width="275"></td> </tr> <tr bgcolor="white"> <td width="299"> Audio T-STD Tests</td> <td width="61">No Lic</td> <td width="61">No Lic</td> <td width="275"></td> </tr> </table> </td> </tr> <tr height="1"> <td width="719" height="1"></td> <td width="1" height="1"></td> </tr> </table> </div> </body></html> has any python lib to do this ? thanks
Answer:

http://www.crummy.com/software/BeautifulSoup/ gets you almost all the way there: >>> import BeautifulSoup >>> f = open('a.html') >>> soup = BeautifulSoup.BeautifulSoup(f) >>> f.close() >>> g = open('a.xml', 'w') >>> print >> g, soup.prettify() >>> g.close() This closes all tags properly. The only issue remaining is that the doctype remains HTML -- to change that into the doctype of your choice, you only need to change the first line, which is not hard, e.g., instead of printing the prettified text directly, >>> lines = soup.prettify().splitlines() >>> lines[0] = ('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"' '"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">') >>> print >> g, '\n'.join(lines)

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