How to publish python code in blogger

Thanks to Paddy.

import fileinput, re, cgi

def escape(lineiterator=fileinput.input,
           cgi_escape=True, tag_with_pre=True, tag_with_br=False):
  output = []
  if tag_with_pre: output.append('<pre>\n')
  for line in lineiterator:
    if cgi_escape: line = cgi.escape(line)
    line =  re.sub(r'^(\s*)\s',
                 lambda m: '&nbsp;'*m.end(),
                 line.rstrip())
    output.append(line)
    if tag_with_br:
      output.append('<br>\n')
    else:
      output.append('\n')
  if tag_with_pre: output.append('</pre>\n')
  return ''.join(output)