「*」運算符concatinating代替乘 - Python的

Question

我有內容讀作'keywords' CSV文件： -

days 1 
day  1 
year 365 
years 365 
month 30 
months 30 
weeks 7 
week 7 

我讀它作爲一個列表。

我還有一個CSV文件，其內容： -

for thirty working days 
for 30 working weeks 
upto 40 months 
till 5 weeks 
for a period of 30 years 
for a period of 30.36 days 
for 30working 
21 to 30#@ period days 
30#@ period weeks 
for a period of 30-36 weeks 
3 weeks after sixty 

我有一個函數（split_line），這將在「三十法郎」轉換爲「30」，並給予字符串返回到一個變量'WordasNumber' ..

什麼我做的是發現如果在字符串的內容'days' or 'weeks' or 'months' or 'years'從WordasNumber正在讀取...

如果day然後用1乘該串數字.. 。如果有week然後用7乘字符串中的數字......就像明智的365正片year，並與30 month

我的代碼

import csv 
import re 
from word2number import w2n 

with open("test_term.csv", "rb") as file1: 
     reader = csv.reader(file1) 
     extractedlist = list(reader) 

def split_line(text): 
    words = text.split(' ') 
    number = 0 
    #print words 
    # for each word in the line: 
    new_list = [] 
    for word in words: 
     #print word 
     #print w2n.word_to_num(word) 
     conversion = w2n.word_to_num(word) 
     if isinstance(conversion, (int,long)): 
      #print conversion 
      new_list.append(conversion) 
      number = conversion    

     else: 
      if word.isdigit(): 
       number = word 
      new_list.append(word) 


    return new_list, number 
numbersProcessed = [] 
for extraRow in extractedlist: 
    pnO = extraRow[0] 
    extraRow[1] = re.sub(r'[^\w\s]', '', extraRow[1]) 
    if pnO in numbersProcessed: 
     continue 
    WordasNumber, number = split_line(extraRow[1]) 
    with open("dict.csv") as rawFile: 
     reader = csv.reader(rawFile) 
     keywords = list(reader) 
     #print number 
     #WordasNumber = re.match(r'[0-9]{3,}',WordasNumber).group() 
    for a in WordasNumber: 
     for line in keywords: 
      #print line 
      if(a==line[0]): 
       value = line[1] 
       #print value 
       #print number 
       try: 

        result = int(number)*int(value) 
        print pnO, ":" ,result 
        numbersProcessed.append(pnO) 
       except: 
        pass  

，但我得到的輸出是： -

30 
30303030303030 
404040404040404040404040404040404040404040404040404040404040 
5555555 
3030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030 
0 
21 
0 
0 
420 

我看到，在過去的字符串sixty是越來越轉化爲60和被W相乘ith 7並給出輸出420 ......但爲什麼其他條目會連接而不是相乘？

30是假設乘以365是連接365次...不知道我要去哪裏錯了...幫助！

注意： - 根據我的理解，忽略輸出中的0，因爲在它之後的數字和字符串之間沒有空格......但是如果您有快速解決方案來解決它然後它的歡迎！

Answer 1

這是因爲30是一個字符串，並且你意外地激活了字符串乘法。

"30" * 3 = "303030" 

您需要在乘以之前將您的值轉換爲整數。

從源頭上解決問題：在你的split_line，而不是做這樣的：

if word.isdigit(): 
    number = word 

做

if word.isdigit(): 
    number = int(word)