python：ValueError：int（）的基数为10的无效文字：''(python : ValueError: invalid literal for int() with base 10: ' ')

 我有一个文本文件，其中包含条目 
 
70154::308933::3
UserId::ProductId::Score
 
 我把这个程序写成:(对不起，这里有点搞砸了） 
 
def generateSyntheticData(fileName):
 dataDict = {}
 # rowDict = []
 innerDict = {}


 try:
    # for key in range(5):
    # count = 0
    myFile = open(fileName)
    c = 0
        #del innerDict[0:len(innerDict)]

    for line in myFile:
        c += 1
        #line = str(line)
        n = len(line)
        #print 'n: ',n
        if n is not 1:
       # if c%100 ==0: print "%d: "%c, " entries read so far"
       # words = line.replace(' ','_')
            words = line.replace('::',' ')

            words = words.strip().split()


            #print 'userid: ', words[0]
            userId = int( words[0]) # i get error here
            movieId = int (words[1])
            rating =float( words[2])
            print "userId: ", userId, " productId: ", movieId," :rating: ", rating
            #print words
            #words = words.replace('_', ' ')
            innerDict = dataDict.setdefault(userId,{})
            innerDict[movieId] = rating
            dataDict[userId] = (innerDict)
            innerDict = {}
except IOError as (errno,strerror):
    print "I/O error({0}) :{1} ".format(errno,strerror)

finally:
    myFile.close() 
print "total ratings read from file",fileName," :%d " %c
return dataDict
 
 但我得到错误： 
 
ValueError: invalid literal for int() with base 10: ''
 
 有趣的是，它正好工作从其他文件中读取相同的格式数据。实际上在发布这个问题时，我注意到一些奇怪的事情。条目70154 :: 308933 :: 3每个数字之间都有一个像。空间0空间1空间5空间4空间::空间3 ... BUt文本文件看起来很好.. :(复制粘贴只显示这种性质..无论如何..但任何线索发生了什么。谢谢 

I have a text file which contains entry like
 
70154::308933::3
UserId::ProductId::Score
 
I wrote this program to read: (Sorry the indendetion is bit messed up here)
 
def generateSyntheticData(fileName):
 dataDict = {}
 # rowDict = []
 innerDict = {}


 try:
    # for key in range(5):
    # count = 0
    myFile = open(fileName)
    c = 0
        #del innerDict[0:len(innerDict)]

    for line in myFile:
        c += 1
        #line = str(line)
        n = len(line)
        #print 'n: ',n
        if n is not 1:
       # if c%100 ==0: print "%d: "%c, " entries read so far"
       # words = line.replace(' ','_')
            words = line.replace('::',' ')

            words = words.strip().split()


            #print 'userid: ', words[0]
            userId = int( words[0]) # i get error here
            movieId = int (words[1])
            rating =float( words[2])
            print "userId: ", userId, " productId: ", movieId," :rating: ", rating
            #print words
            #words = words.replace('_', ' ')
            innerDict = dataDict.setdefault(userId,{})
            innerDict[movieId] = rating
            dataDict[userId] = (innerDict)
            innerDict = {}
except IOError as (errno,strerror):
    print "I/O error({0}) :{1} ".format(errno,strerror)

finally:
    myFile.close() 
print "total ratings read from file",fileName," :%d " %c
return dataDict
 
But i get the error: 
 
ValueError: invalid literal for int() with base 10: ''
 
Funny thing is, it is working just fine reading the same format data from other file.. Actually while posting this question, I noticed something weird.. The entry 70154::308933::3 each number has a space.in between like 7 space 0 space 1 space 5 space 4 space :: space 3... BUt the text file looks fine..:( on copy pasting only it shows this nature.. Anyways.. but any clue whats going on. Thanks

原文：https://stackoverflow.com/questions/7439025