Question

我正在打开并一次从文件夹中读取一个.csv文件并将其打印出来，如下所示：

ownerfiles = os.listdir(filepath)
for ownerfile in ownerfiles: 
if ownerfile.endswith(".csv"):
    eachfile = (filepath + ownerfile)    #loops over each file in ownerfiles
    with open (eachfile, 'r', encoding="UTF-8") as input_file:
        next(input_file)
        print(eachfile)
        for idx, line in enumerate(input_file.readlines()) :
            line = line.strip().split(",")
            print(line)

然而，当我print(line)时，文件打印如下：

/Users/Sulz/Desktop/MSBA/Applied Data Analytics/Test_File/ownerfile_138.csv
[''] ['2010-01-01 11:28:35', '16', '54', '59', '0000000040400', 'O.Coffee Hot Small', 'I', ' ', ' ', '14', '1', '0', '0.3241', '1.4900', '1.4900', '1.4900', '0.0000', '1', '0', '0', '0', '0.0000', '0.0000', '1', '44', '0', '0.00000000', '1', '0', '0', '0.0000', '0', '0', '', '0', '5', '0', '0', '0', '0', 'NULL', '0', 'NULL', '', '0', '20436', '1', '0', '0', '1']

如何在所有数据列表之前删除['']

修改
我现在尝试用.csv模块读取它：

ownerfiles = os.listdir(filepath) 
for ownerfile in ownerfiles: 
  if ownerfile.endswith(".csv"): 
    eachfile = (filepath + ownerfile)     #loops over each file in ownerfiles 
    with open (eachfile, 'r', encoding="UTF-8") as input_file: 
      next(input_file) 
      reader = csv.reader(input_file, delimiter=',', quotechar='|') 
      for row in reader : 
        print(row)

然而，它仍然打印输出：

[] [＆＃39; 2010-01-01 11：28：35＆＃39;，＆＃39; 16＆＃39;，＆＃39; 54＆＃39;，＆＃39; 59＆＃39; ，＆＃39; 0000000040400＆＃39;，＆＃39; O.Coffee Hot Small＆＃39;，＆＃39; I＆＃39;，＆＃39; ＆＃39;，＆＃39; ＆＃39;，＆＃39; 14＆＃39;，＆＃39; 1＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0.3241＆＃39;，＆＃39; 1.4900＆＃39 ;，＆＃39; 1.4900＆＃39;，＆＃39; 1.4900＆＃39;，＆＃39; 0.0000＆＃39;，＆＃39; 1＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0.0000＆＃39;，＆＃39; 0.0000＆＃39;，＆＃39; 1＆＃39;，＆＃39 ; 44＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0.00000000＆＃39;，＆＃39; 1＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39 ;，＆＃39; 0.0000＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39;＆＃39;，＆＃39; 0＆＃39;，＆＃ 39; 5＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; NULL＆＃39 ;，＆＃39; 0＆＃39;，＆＃39; NULL＆＃39;，＆＃39;＆＃39;，＆＃39; 0＆＃39;，＆＃39; 20436＆＃39;，＆＃39 ; 1＆＃39;，＆＃39; 0＆＃39;，＆＃39; 0＆＃39;，＆＃39; 1＆＃39;]

Answer 1

这就是打印Python的列表语法。您正在分隔生成列表的逗号上的每一行。如果你在拆分之前打印线，你可能会得到你想要的东西：

line = line.strip()
print(line)
line = line.split(",")

顺便说一下，如果你不知道，Python有built in CSV module用于读写csv文件。

编辑：抱歉，我误解了你的问题。将其添加到readlines循环的开头：

line = line.strip()

if not line:
  continue

如何在python中读取.csv文件时摆脱[＆＃39;＆＃39;]

1 个答案: