python3.4 原始字符串做路径 Open报错

1. data_filename = os.path.join(r'C:\Users\Administrator\Data','Ionosphere','inonsphere.data')
   
2. x = np.zeros((351,34),dtype='float')
   
3. y = np.zeros((351),dtype='bool')
   
4. 
   
5. with open(data_filename,'r') as inputFile :
   
6.     fileReader = csv.reader(inputFile)
   
7.    
   
8.     for row,i in enumerate(fileReader):
   
9.         dataRecord = [ float(data) for data in row[:,-1] ]
   
10.         x[i] = data
    
11.         y[i] = row[-1] == 'g'

复制代码

1. ---------------------------------------------------------------------------
   
2. FileNotFoundError                         Traceback (most recent call last)
   
3. <ipython-input-25-73256529d3c6> in <module>()
   
4.       3 y = np.zeros((351),dtype='bool')
   
5.       4
   
6. ----> 5 with open(data_filename,'r') as inputFile :
   
7.       6     fileReader = csv.reader(inputFile)
   
8.       7
   
9. 
   
10. FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Administrator\\Data\\Ionosphere\\inonsphere.data'
    
11. 
    

复制代码

不理解为什么报错 路径: 'C:\\Users\\Administrator\\Data\\Ionosphere\\inonsphere.data' 都是 双\  明明没这么些

格式正确. 检查文件名 iono inon?