Question

在分配pylint（E0601）之前使用变量“ criteria_names” 。仅针对已分配的“ criteria_names”列表弹出此错误，而不会以相同的方式弹出其他列表。任何指针或解决方案都非常感谢！

代码片段：

data = list()
lines = list()
n_vectors = list()
vectors = list()
medium_vectors = list()
classnames = list()
classes_insert_lines = list()
vectors_raw = list()
criteria_names = list()

def DataGet(temp_pulse_file):
    data[:] = []
    n_vectors[:] = []
    vectors[:] = []
    medium_vectors[:] = []
    classnames[:] = []
    classes_insert_lines[:] = []
    vectors_raw[:] = []
    criteria_names[:] = [] #<- this is where the error pops up

    with open(temp_pulse_file, "r", encoding='utf-8') as file:
        lines = (file.read()).split("\n")
    file.close()

    n = -1
    for i in range(len(lines)):
        data.append(lines[i].split(","))

        if data[i][0] == ">":
            n += 1
            classnames.append(data[i][1])
            classes_insert_lines.append(i + 1)
            n_vectors.append(0)
            vectors_raw.append([])
            vectors.append([])
        elif data[i][0] == "#":
            weights = data[i][1:]
        elif data[i][0] == "$":
            criteria_names = list(data[i][1:])
        else:
            n_vectors[n] += 1
            vectors[n].append(data[i])
            vectors_raw[n].append(lines[i])


    n_elems = len(vectors[0][0])
    classes = len(classnames)

    for i in range(classes):
        for j in range(n_vectors[i]):
            for k in range(n_elems):
                vectors[i][j][k] = float(vectors[i][j][k])

    return n_elems, classes, n_vectors, weights, lines, classes_insert_lines, vectors_raw

n_elems, classes, n_vectors, weights, lines, classes_insert_lines, vectors_raw = DataGet(getcurrentdir() + 'db.pulse')
print(' criteria_names:',criteria_names)

当我删除criteria_names[:] = []时，该函数中使用的其他列表没有任何错误。任何帮助。

Answer 1

感谢@martineau和@Barmar，在global criteria_names函数的开头添加了DataGet()，这确实是一个奇迹。

使用列表时在赋值错误之前使用变量

1 个答案: