change: Use byte literals where possible

bottle.py

@@ -1257,7 +1257,7 @@ def _iter_body(self, read, bufsize):
  @staticmethod
  def _iter_chunked(read, bufsize):
  err = HTTPError(400, 'Error while parsing chunked transfer body.')
- rn, sem, bs = tob('\r\n'), tob(';'), tob('')
+ rn, sem, bs = b'\r\n', b';', b''
  while True:
  header = read(1)
  while header[-2:] != rn:
@@ -1813,7 +1813,7 @@ def set_cookie(self, name, value, secret=None, digestmod=hashlib.sha256, **optio
  encoded = base64.b64encode(pickle.dumps([name, value], -1))
  sig = base64.b64encode(hmac.new(tob(secret), encoded,
  digestmod=digestmod).digest())
- value = touni(tob('!') + sig + tob('?') + encoded)
+ value = touni(b'!' + sig + b'?' + encoded)
  elif not isinstance(value, basestring):
  raise TypeError('Secret key required for non-string cookies.')
 
@@ -2991,7 +2991,7 @@ def cookie_encode(data, key, digestmod=None):
  digestmod = digestmod or hashlib.sha256
  msg = base64.b64encode(pickle.dumps(data, -1))
  sig = base64.b64encode(hmac.new(tob(key), msg, digestmod=digestmod).digest())
- return tob('!') + sig + tob('?') + msg
+ return b'!' + sig + b'?' + msg
 
 
 def cookie_decode(data, key, digestmod=None):
@@ -3000,7 +3000,7 @@ def cookie_decode(data, key, digestmod=None):
  "Do not use this API directly.")
  data = tob(data)
  if cookie_is_encoded(data):
- sig, msg = data.split(tob('?'), 1)
+ sig, msg = data.split(b'?', 1)
  digestmod = digestmod or hashlib.sha256
  hashed = hmac.new(tob(key), msg, digestmod=digestmod).digest()
  if _lscmp(sig[1:], base64.b64encode(hashed)):
@@ -3012,7 +3012,7 @@ def cookie_is_encoded(data):
  """ Return True if the argument looks like a encoded cookie."""
  depr(0, 13, "cookie_is_encoded() will be removed soon.",
  "Do not use this API directly.")
- return bool(data.startswith(tob('!')) and tob('?') in data)
+ return bool(data.startswith(b'!') and b'?' in data)
 
 
 def html_escape(string):