Question

我正在使用DictWriter编写和附加csv文件。当我写入工作目录时，csv会正确写入和追加，但是当我将文件位置设置为网络驱动器时，它只会写入标题和第一行。

def collectSerials(salesOrderNum, shipDate, info, name, warranty):

    while 1:
        sn = input("Scan in the item's serial number:\n")

        #write to csv
        #salesOrderNum does not change
        #Checks to see if file already exists
        if (path.exists(salesOrderNum+'.csv')):
            #if so append
            with open('//ibl1/info/SalesOrders/'+salesOrderNum+'.csv', 'a', newline='') as csvfile:
                fieldnames = ['Product Name', 'Serial Number', 'Shipping Date', 'Warranty Expiration']
                writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
                writer.writerow({'Product Name': name, 'Serial Number': sn, 'Shipping Date': shipDate, 'Warranty Expiration': warranty})
        else:
            #if not create new file
            with open('//ibl1/info/SalesOrders/'+salesOrderNum+'.csv', 'w', newline='') as csvfile:
                fieldnames = ['Product Name', 'Serial Number', 'Shipping Date', 'Warranty Expiration']
                writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
                writer.writeheader()
                writer.writerow({'Product Name': name, 'Serial Number': sn, 'Shipping Date': shipDate, 'Warranty Expiration': warranty})

很奇怪，它只写标题和循环中输入的第一行。如果出现问题，我希望它根本不起作用。

Answer 1

这是因为您的操作系统存在指向您的工作目录。您只需要检查文件是否在本地，然后将新文件写入网络驱动器即可。

替换

if (path.exists(salesOrderNum+'.csv')):

使用

if (path.exists('//ibl1/info/SalesOrders/'+salesOrderNum+'.csv')):

Python csv writer只写标题和一行

1 个答案: