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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
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