如何将CSV文件附加到Python中现有的zip归档文件中?

从第一眼看上去

export = request.export_data()

返回的字节数据。ZipFile只对类似文件的对象有效，你能不能试着用下面的代码把它封装起来:

export = io.BytesIO(request.export_data())
export.seek(0) # this sets cursor to the beginning of file
# I had some issues with cursors not being at the beginning of the file 
# and thus data read from it was corrupt.

UPD:实际上问题比我描述的要多。我很快就回来。 以下是完整的工作示例:

import csv
import io
import zipfile


transactions = [
    {"f1": 1, "f2": 2, "f3": 3},
    {"f1": 3, "f2": 1, "f3": 2},
    {"f1": 2, "f2": 3, "f3": 1},
]


transactions_csv = io.StringIO()
writer = csv.DictWriter(transactions_csv, fieldnames=["f1", "f2", "f3"])
writer.writeheader()
for transaction in transactions:
    writer.writerow(transaction)
transactions_csv.seek(0)

with open("file.zip", "r+b") as z:
    new_zip = zipfile.ZipFile(z, "a", zipfile.ZIP_DEFLATED, False)
    new_zip.writestr("transaction3.csv", transactions_csv.read())
    new_zip.close()

注意:我在任何地方都使用类似文件的对象，假设这是主要问题之一。如果您有zip文件，代码将会简单得多。保存在磁盘上的文件。