ExcelPython返回类型不匹配问题

Question

所以我从我的Excel文件中用VBA和ExcelPython引用调用python脚本。该Python脚本工作正常，除了Excel中不断告诉我，我有注意的行类型不匹配：

Function calcCapValue(times As Range, fRates As Range, strike As Range, vol As Range, delta As Double, pv As Range) As Variant 

    Set methods = PyModule("PyFunctions", AddPath:=ThisWorkbook.Path) 
    Set result = PyCall(methods, "CalculateCapValue", KwArgs:=PyDict("times", times.Value2, "fwdRates", fRates.Value2, "strike", strike.Cells(1, 1).Value2, "flatVol", vol.Cells(1, 1).Value2, "delta", delta, "pv", pv.Cells(1, 1).Value2)) 

    calcCapValue = PyVar(PyGetItem(result, "res")) ' <--- TYPE MISMATCH HERE 

    Exit Function 

End Function 

想不通为什么，我在下面从这里示例代码：https://sourceforge.net/p/excelpython/wiki/Putting%20it%20all%20together/ 这里：http://www.codeproject.com/Articles/639887/Calling-Python-code-from-Excel-with-ExcelPython

仍然得到这种类型不匹配，我不明白为什么。

这里的python脚本：

#imports 
import numpy as np 
from scipy.stats import norm 

# 
# Cap Price Calculation 
# 
def CalculateCapValue(times, fwdRates, strike, flatVol, delta, pv): 

    capPrice = 0; 


    #Iterate through each time for caplet price 

    for i in range(0, len(times)): 

     ifr = float(fwdRates[i][0]) 
     iti = float(times[i][0]) 

     d1 = (np.log(ifr/strike)+((flatVol**2)*iti)/2)/(flatVol*np.sqrt(iti)) 
     d2 = d1 - (flatVol*np.sqrt(iti)) 
     Nd1 = norm.cdf(d1) 
     Nd2 = norm.cdf(d2) 

     capPrice += pv*delta*(ifr*Nd1 - strike*Nd2) 

    return {"res": capPrice} 

谢谢！

Answer 1

问题回答了ExcelPython论坛Sourceforge上：

http://sourceforge.net/p/excelpython/discussion/general/thread/97f6c1b0/