优胜美地10.10.3 xlwings范围错误

我刚刚安装了xlwings，正在尝试其中一个例子，我得到一个Range错误。 其他命令似乎工作正常。 这是优胜美地10.10.3

任何想法可能是错的？

Python 2.7.6 (default, Sep 9 2014, 15:04:36) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> from xlwings import Workbook, Sheet, Range, Chart >>> wb = Workbook() >>> Sheet(1).name u'Sheet1' >>> Range('A1').value = 'Foo 1' Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.7/site-packages/xlwings/main.py", line 622, in __init__ self.row2 = self.row1 + xlplatform.count_rows(self.xl_sheet, range_address) - 1 File "/Library/Python/2.7/site-packages/xlwings/_xlmac.py", line 145, in count_rows return xl_sheet.cells[range_address].count(each=kw.row) File "/Library/Python/2.7/site-packages/aeosa/appscript/reference.py", line 431, in __call__ raise TypeError('Unknown keyword argument %r.' % name) TypeError: Unknown keyword argument 'each'. >>>