蟒：在类型错误上元组结果的算术操作

Question

因此，我已两个不同的2维阵列words和scores

words是串 scores的2维数组是浮体的2维阵列

我将它们转换为元组并对它们执行算术运算（我最初将元组传递给库，但为了简单起见，我复制了操作并开始测试它）

我的代码

for i in range(0,len(scores)): 
    freqs = [] 
    for word, score in zip(words[i], scores[i]): 
     freqs.append((word, score)) 
     frequencies = [ (word, freq/20.0) for word, freq in freqs ] 

当我运行这段代码，我得到以下错误

TypeError         Traceback (most recent call last) 
<ipython-input-17-017692219adb> in <module>() 
     4  for word, score in zip(words[i], scores[i]): 
     5   freqs.append((word, score)) 
----> 6   frequencies = [ (word, freq/20.0) for word, freq in freqs ] 
     7 
     8   #elements = wc.fit_words(freqs) 

TypeError: unsupported operand type(s) for /: 'str' and 'float' 

Answer 1

freq是一个字符串。在分割之前转换为浮点数。

如：float(freq)

所以新的代码将frequencies = [ (word, float(freq)/20.0) for word, freq in freqs ]

Answer 2

什么错误，基本上说的是，你正在试图通过一个浮动分割字符串，所以你必须将字符串转换为float：

for i in range(0,len(scores)): 
    freqs = [] 
    for word, score in zip(words[i], scores[i]): 
     freqs.append((word, score)) 
     frequencies = [ (word, float(freq)/20.0) for word, freq in freqs ]