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//usr/lib/python2.7/site-packages/flask_sqlalchemy/_compat.py
import sys PY2 = sys.version_info[0] == 2 if PY2: def iteritems(d): return d.iteritems() def itervalues(d): return d.itervalues() xrange = xrange string_types = (unicode, bytes) def to_str(x, charset='utf8', errors='strict'): if x is None or isinstance(x, str): return x if isinstance(x, unicode): return x.encode(charset, errors) return str(x) else: def iteritems(d): return iter(d.items()) def itervalues(d): return iter(d.values()) xrange = range string_types = (str,) def to_str(x, charset='utf8', errors='strict'): if x is None or isinstance(x, str): return x if isinstance(x, bytes): return x.decode(charset, errors) return str(x)
