同时读取多个 .csv 文件[重复]

Question

我正在尝试通过循环从两个不同的 .csv 文件中读取值。打开一个 .csv 文件时，我能够完美地运行程序；但是，当我导入第二个 .csv 文件时，出现以下错误：

---

Traceback（最近一次调用最后一次）： 文件“C:\Users\crteeic\Desktop\Project\Full Program (Testing).py”，第 210 行，在 使用 open('MagnaDC Set Points.csv', 'r') 和 ('Amatek Set Points.csv', 'r') 作为 csvfile：

属性错误：输入

该程序的目的是从两个 .csv 文件中读取值并将这些值发送到两个不同的电源。请在下面找到代码：

with open('MagnaDC Set Points.csv', 'r') and ('Amatek Set Points.csv', 'r') as csvfile:
    dataset = csv.reader(csvfile, delimiter=',')
    next(dataset)
    rows = list(dataset)
    inputSamplesm = np.empty([len(rows), 2], dtype=float)
    outputSamplesm = np.empty([1,3], dtype=float)
    inputSamplesa = np.empty([len(rows), 2], dtype=float)
    outputSamplesa = np.empty([1,3], dtype=float)
    testStartTime = time.time()
    for idx, data in enumerate(rows):
        inputSamplesm[idx] = [data[0], data[1]]
        inputSamplesa[idx] = [data[0], data[1]]
        s.sendall('VOLT {0}\n'.format(data[0]).encode('utf-8'))
        conn.write('VOLT {0}\n'.format(data[0]).encode('utf-8'))
        stopTime = testStartTime + int(data[1])

请指教。谢谢。

Answer 1

需要单独打开文件：

with open('MagnaDC Set Points.csv', 'r') as csvfile1, open('Amatek Set Points.csv', 'r') as csvfile2: 

更多信息： Read two textfile line by line simultaneously -python

Answer 2

如果您只想串行读取两个文件并发送它们，请遍历文件名：

filenames = [
  "MagnaDC Set Points.csv",
  "Amatek Set Points.csv",
]
for filename in filenames:
    with open(filename, "r") as csvfile:
        dataset = csv.reader(csvfile, delimiter=",")
        next(dataset)
        rows = list(dataset)
        inputSamplesm = np.empty([len(rows), 2], dtype=float)
        outputSamplesm = np.empty([1, 3], dtype=float)
        inputSamplesa = np.empty([len(rows), 2], dtype=float)
        outputSamplesa = np.empty([1, 3], dtype=float)
        testStartTime = time.time()
        for idx, data in enumerate(rows):
            inputSamplesm[idx] = [data[0], data[1]]
            inputSamplesa[idx] = [data[0], data[1]]
            s.sendall("VOLT {0}\n".format(data[0]).encode("utf-8"))
            conn.write("VOLT {0}\n".format(data[0]).encode("utf-8"))
            stopTime = testStartTime + int(data[1])