CSV新行字符出现在未引用字段错误

一尘不染

CSV新行字符出现在未引用字段错误

django

直到今天，当我从Windows计算机导入以下代码时，此代码仍有效：

在不带引号的字段中看到换行符-是否需要以通用换行模式打开文件？

import csv

class CSV:

    def __init__(self, file=None):
        self.file = file

    def read_file(self):
        data = []
        file_read = csv.reader(self.file)
        for row in file_read:
            data.append(row)
        return data

    def get_row_count(self):
        return len(self.read_file())

    def get_column_count(self):
        new_data = self.read_file()
        return len(new_data[0])

    def get_data(self, rows=1):
        data = self.read_file()

        return data[:rows]

如何解决此问题？

def upload_configurator(request, id=None):
    """
    A view that allows the user to configurator the uploaded CSV.
    """
    upload = Upload.objects.get(id=id)
    csvobject = CSV(upload.filepath)

    upload.num_records = csvobject.get_row_count()
    upload.num_columns = csvobject.get_column_count()
    upload.save()

    form = ConfiguratorForm()

    row_count = csvobject.get_row_count()
    colum_count = csvobject.get_column_count()
    first_row = csvobject.get_data(rows=1)
    first_two_rows = csvobject.get_data(rows=5)

阅读 311

2020-03-27

共1个答案

一尘不染

很高兴看到csv文件本身，但这可能对你有用，请尝试一下，替换：

file_read = csv.reader(self.file)

与：

file_read = csv.reader(self.file, dialect=csv.excel_tab)

或者，使用打开文件universal newline mode并将其传递给csv.reader，例如：

reader = csv.reader(open(self.file, 'rU'), dialect=csv.excel_tab)

或者，splitlines()像这样使用：

def read_file(self):
    with open(self.file, 'r') as f:
        data = [row for row in csv.reader(f.read().splitlines())]
    return data

2020-03-27