+
+
+def fix_xml_all_ampersand(xml_str):
+ """Replace all the '&' by '&' in XML"""
+ return xml_str.replace(u'&', u'&')
+
+
+def setproctitle(title):
+ assert isinstance(title, compat_str)
+ try:
+ libc = ctypes.cdll.LoadLibrary("libc.so.6")
+ except OSError:
+ return
+ title = title
+ buf = ctypes.create_string_buffer(len(title) + 1)
+ buf.value = title.encode('utf-8')
+ try:
+ libc.prctl(15, ctypes.byref(buf), 0, 0, 0)
+ except AttributeError:
+ return # Strange libc, just skip this
+
+
+def remove_start(s, start):
+ if s.startswith(start):
+ return s[len(start):]
+ return s
+
+
+def url_basename(url):
+ path = compat_urlparse.urlparse(url).path
+ return path.strip(u'/').split(u'/')[-1]
+
+
+class HEADRequest(compat_urllib_request.Request):
+ def get_method(self):
+ return "HEAD"
+
+
+def int_or_none(v):
+ return v if v is None else int(v)
+
+
+def parse_duration(s):
+ if s is None:
+ return None
+
+ m = re.match(
+ r'(?:(?:(?P<hours>[0-9]+):)?(?P<mins>[0-9]+):)?(?P<secs>[0-9]+)$', s)
+ if not m:
+ return None
+ res = int(m.group('secs'))
+ if m.group('mins'):
+ res += int(m.group('mins')) * 60
+ if m.group('hours'):
+ res += int(m.group('hours')) * 60 * 60
+ return res
+
+
+def prepend_extension(filename, ext):
+ name, real_ext = os.path.splitext(filename)
+ return u'{0}.{1}{2}'.format(name, ext, real_ext)