Python 如何确定值错误：烧瓶中的负寻道值

我在flask中编写了一个函数，用于上传文件并从文件中读取，但当我上传并读取文件时，它抛出了这个错误

ValueError:负寻道值-315

我从我试图读取文件的代码部分知道这一点，因为如果我删除该部分，文件将成功上载

这是密码

@home\u blueprint.route（'/upload'，methods=['GET'，POST']）
def upload（）：
如果request.method==“POST”：
f=请求.files['file']
wb=加载工作簿（f）
工作表=wb.active
get_row=sheet.iter_row（最小行=2，
最小值=1，
最大值=4，
值（仅适用于=真）
f、 保存（安全文件名（f.filename））
返回“已成功上载文件”

这是我的错误完整堆栈跟踪

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 2309, in __call__

    return self.wsgi_app(environ, start_response)

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 2295, in wsgi_app

    response = self.handle_exception(e)

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 1741, in handle_exception

    reraise(exc_type, exc_value, tb)

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise

    raise value

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app

    response = self.full_dispatch_request()

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request

    rv = self.handle_user_exception(e)

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception

    reraise(exc_type, exc_value, tb)

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise

    raise value

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request

    rv = self.dispatch_request()

    File "/home/akoh/.local/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request

    return self.view_functions[rule.endpoint](**req.view_args)

    File "/home/akoh/Documents/personal/IntronHealthExercise/app/home/views.py", line 25, in upload

    wb = load_workbook(f)

    File "/home/akoh/.local/lib/python3.6/site-packages/openpyxl/reader/excel.py", line 314, in load_workbook

    reader.read()

    File "/home/akoh/.local/lib/python3.6/site-packages/openpyxl/reader/excel.py", line 279, in read

    self.read_worksheets()

    File "/home/akoh/.local/lib/python3.6/site-packages/openpyxl/reader/excel.py", line 254, in read_worksheets

    charts, images = find_images(self.archive, rel.target)

    File "/home/akoh/.local/lib/python3.6/site-packages/openpyxl/reader/drawings.py", line 24, in find_images

    src = archive.read(path)

    File "/usr/lib/python3.6/zipfile.py", line 1337, in read

    with self.open(name, "r", pwd) as fp:

    File "/usr/lib/python3.6/zipfile.py", line 1391, in open

    fheader = zef_file.read(sizeFileHeader)

    File "/usr/lib/python3.6/zipfile.py", line 728, in read

    self._file.seek(self._pos)

    File "/usr/lib/python3.6/tempfile.py", line 888, in seek

    self._file.seek(*args)

    ValueError: negative seek value -315

---

因此代码工作正常，问题在于文件，它已损坏。

您能告诉我

f=request.files['file']

之后

f

的值是多少吗。load_workbook（）需要一个文件路径，我怀疑

f

是否提供了该路径。这是f

的值，所以我尝试了您的代码，它工作正常。我假设

load\u工作簿

函数来自

openpyxl

。能否将您正在发布的xlsx文件附加到此api？是的，加载工作簿来自openpyxl。我不知道如何在这里附加xlsx文件？将其上载到gdrive并在此处附加链接。