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import base64
import io
import sys
if sys.version_info[0] < 3:
text_type = unicode # noqa: F821
StringIO = io.BytesIO
def native(s, encoding='utf-8'):
if isinstance(s, unicode): # noqa: F821
return s.encode(encoding)
return s
else:
text_type = str
StringIO = io.StringIO
def native(s, encoding='utf-8'):
if isinstance(s, bytes):
return s.decode(encoding)
return s
def urlsafe_b64encode(data):
"""urlsafe_b64encode without padding"""
return base64.urlsafe_b64encode(data).rstrip(b'=')
def urlsafe_b64decode(data):
"""urlsafe_b64decode without padding"""
pad = b'=' * (4 - (len(data) & 3))
return base64.urlsafe_b64decode(data + pad)
def as_unicode(s):
if isinstance(s, bytes):
return s.decode('utf-8')
return s
def as_bytes(s):
if isinstance(s, text_type):
return s.encode('utf-8')
return s