CSV NamedTemporaryFile未正确保存

Question

我尝试使用Python的csv和tempfile工具制作csv文件。我声明如下：

csvattachment = tempfile.NamedTemporaryFile(suffix='.csv', prefix=('student_' + studentID), delete=False)
with open(csvattachment.name, 'w+') as csvfile:
    filewriter = csv.writer(csvfile, delimiter=',')
    filewriter.writerow([ #WRITE CONTENT HERE])

我接下来要做的就是附加这个文件并发送出去。问题在于，附件名不是“student_.csv”，而是更难看的东西，比如<tempfile._TemporaryFileWrapper object at 0x10cbf5e48>

Answer 1

NamedTemporaryFile()类已经返回一个打开的文件，您不必重新打开它

with tempfile.NamedTemporaryFile(suffix='.csv', prefix=('student_' + studentID),
        delete=False, mode='w+') as csvfile:
    filewriter = csv.writer(csvfile, delimiter=',')
    filewriter.writerow([ #WRITE CONTENT HERE])