Python - Mehrere Zeilen Text in einen String packen

wie kann man mehrere Zeilen Text in einen String packen

header = '
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta name="msapplication-task" content="name=Startseite Forum;action-uri=http://www.c-plusplus.net/forum;icon-uri=http://www.c-plusplus.net/user_group.ico"/>
<meta name="msapplication-task" content="name=Unbeantwortete Beiträge;action-uri=http://www.c-plusplus.net/forum/newposts;icon-uri=http://www.c-plusplus.net/offline_user.ico"/>
<meta name="msapplication-task" content="name=Eigene Beiträge;action-uri=http://www.c-plusplus.net/forum/egosearch;icon-uri=http://www.c-plusplus.net/edit_user.ico"/>
<meta name="msapplication-task" content="name=Follow me!;action-uri=http://twitter.com/cplusplusde;icon-uri=http://www.c-plusplus.net/Hungry-bird.ico"/>
<meta property="fb:page_id" content="116155165079495" />
<title>C/C++ Forum :: Neues Thema schreiben</title>
<link rel="stylesheet" href="templates/fisubtext/fisubtext.css" media="screen, projection" type="text/css" />
<link rel="stylesheet" href="templates/fisubtext/print.css" media="print" type="text/css" />
<link rel="shortcut icon" type="image/x-icon" href="/favicon.ico"/>
<link rel="author" title="Impressum" href="../cms/modules.php?op=modload&amp;name=legal&amp;file=index"/>
<link rel="search" title="Suche" href="search"/>
<link rel="copyright" title="Urheberrecht" href="../cms/modules.php?op=modload&amp;name=legal&amp;file=index"/>
<link rel="top" title="c++.de" href="../cms/index.php"/>
<script src="templates/fisubtext/misc.js" language="javascript" type="text/javascript"></script>
<script src="templates/fisubtext/rsscache.js" language="javascript" type="text/javascript"></script>
<script type="text/x-mathjax-config">
'

Ich möchte das machen um einen HTML Generator zu schreiben
etwa so:

def GenerateWebsite():
filename = "test.html"
# Create a file object:
# in "write" mode
FILE = open(filename,"w")

# Write all the lines at once:
FILE.writelines(header)

GenerateWebsite()

def GenerateWebsite():   
	filename = "test.html"
	# Create a file object:
	# in "write" mode
	FILE = open(filename,"w")

	# Write all the lines at once:
	FILE.writelines(header)

GenerateWebsite()

Gibt es das eine einfach Lösung?

rüdiger

header = """
...
,,,
"""