python - Pandas xlrd 引擎传递了静态值错误

Question

我正在尝试从 url 读取 xls 文件:

使用请求:

page = requests.get(url) # xls url
df = pd.read_excel(page.content,engine = 'xlrd')  #engine is passed



File "f:\python36\lib\site-packages\pandas\util\_decorators.py", line 118, in wrapper
    return func(*args, **kwargs)
  File "f:\python36\lib\site-packages\pandas\io\excel.py", line 230, in read_excel
    io = ExcelFile(io, engine=engine)
  File "f:\python36\lib\site-packages\pandas\io\excel.py", line 296, in __init__
    raise ValueError('Must explicitly set engine if not passing in'
ValueError: Must explicitly set engine if not passing in buffer or path for io.

# if i put in random engine name it throws an unsupported engine error but with xlrd it throws must set engine

我尝试保存文件然后读取它:

with open('file.xls','wb') as f:
    f.write(page.content)

df = pd.read_excel('file.xls',engine='xlrd')  #this works

编辑:

我尝试传递它引发的 page.text:

ValueError: embedded null character

Answer 1

如果 pd.read_excel 的第一个参数是 str，它被解释为文件(或 URL)的路径 .如果我们希望将文件的内容直接传递给read_excel，那么我们需要将内容包装在一个BytesIO中，使其成为类文件对象:

因此，使用

BytesIO = pd.io.common.BytesIO
df = pd.read_excel(BytesIO(page.content), engine='xlrd')