sympy/sympy — pull request #8713 by dqnykamp (2014-12-29 23:09:54+00:00)
Title: Allow Float to accept unicode input under Python 2

Fixes bug:

In [22]: Float(u"123.455",20)
Out[22]: 123.45499999999999829

In [23]: Float("123.455",20)
Out[23]: 123.45500000000000000