从 Jupyter Lab 调用使用“import()”的 .py 脚本会抛出 UnicodeDecodeError

如何解决从 Jupyter Lab 调用使用“import()”的 .py 脚本会抛出 UnicodeDecodeError

我在脚本 (IBAsset) 中实现了一个类 (assets.py)。属性 IBAsset.daily_returns 使用 python 的 import() 模块来请求用户输入。只要我从 IPython 控制台创建 IBAsset 实例，它就一切正常，并且通过控制台提示我进行输入。但是，一旦我从 Jupyter Lab 中创建了 IBAsset 实例，我就会得到以下 UnicodeDecodeError：

---------------------------------------------------------------------------
UnicodeDecodeError                        Traceback (most recent call last)
<ipython-input-4-56b6b5771106> in <module>
      1 from paulfolio.assets import IBAsset
      2 asset = IBAsset(symbol='IEMG',secType='STK',exchange='NYSE')
----> 3 asset.daily_returns

~/paulfolio/paulfolio/assets.py in daily_returns(self)
    206         if self._historical_data is None:
    207             if input(
--> 208                 f"Historical data for {self.identifier} has not been fetched - Fetch Now?\n(y/n): "
    209             ).lower() in ['yes','y']:
    210                 self._fetch_data()

/usr/local/lib/python3.7/site-packages/ipykernel/kernelbase.py in raw_input(self,prompt)
    858             self._parent_ident,859             self._parent_header,--> 860             password=False,861         )
    862 

/usr/local/lib/python3.7/site-packages/ipykernel/kernelbase.py in _input_request(self,prompt,ident,parent,password)
    869         while True:
    870             try:
--> 871                 self.stdin_socket.recv_multipart(zmq.NOBLOCK)
    872             except zmq.ZMQError as e:
    873                 if e.errno == zmq.EAGAIN:

/usr/local/lib/python3.7/site-packages/zmq/sugar/socket.py in recv_multipart(self,flags,copy,track)
    564             for any of the reasons :func:`~Socket.recv` might fail
    565         """
--> 566         parts = [self.recv(flags,copy=copy,track=track)]
    567         # have first part already,only loop while more to receive
    568         while self.getsockopt(zmq.RCVMORE):

zmq/backend/cython/socket.pyx in zmq.backend.cython.socket.socket.recv()

zmq/backend/cython/socket.pyx in zmq.backend.cython.socket.socket.recv()

zmq/backend/cython/socket.pyx in zmq.backend.cython.socket._recv_copy()

zmq/backend/cython/socket.pyx in zmq.backend.cython.socket._recv_copy()

/usr/local/lib/python3.7/site-packages/zmq/backend/cython/checkrc.pxd in zmq.backend.cython.checkrc._check_rc()

/usr/local/lib/python3.7/site-packages/zmq/error.py in __init__(self,errno,msg)
    100     def __init__(self,errno='ignored',msg='ignored'):
    101         from zmq import EAGAIN
--> 102         super(Again,self).__init__(EAGAIN)
    103 
    104 

/usr/local/lib/python3.7/site-packages/zmq/error.py in __init__(self,msg)
     41             self.errno = errno
     42             if msg is None:
---> 43                 self.strerror = strerror(errno)
     44             else:
     45                 self.strerror = msg

zmq/backend/cython/error.pyx in zmq.backend.cython.error.strerror()

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xfc in position 37: invalid start byte

assets.py：

@property
def daily_returns(self) -> pd.Series:
    if self._historical_data is None:
        if input(
            f"Historical data for {self.identifier} has not been fetched - Fetch Now?\n(y/n): "
        ).lower() in ['yes','y']:
            self._fetch_data()
        else:
            raise Exception('Historical data has not been fetched!')
        
    return self._compute_asset_prices_and_returns(
        historical_data=self._historical_data,nb_offset_days=1
    )[1]

Jupyter Notebook（Jupyter 实验室）：

from assets import IBAsset
asset = IBAsset(symbol='IEMG',exchange='NYSE')
asset.daily_returns

我正在使用 python 3.7.9 和以下 Jupyter 依赖项 开发一个 dockerized Ubuntu 18.04 容器：

jupyter core     : 4.7.0
jupyter-notebook : 6.1.5
qtconsole        : not installed
ipython          : 7.19.0
ipykernel        : 5.4.2
jupyter client   : 6.1.7
jupyter lab      : 2.2.9
nbconvert        : 6.0.7
ipywidgets       : 7.5.1
nbformat         : 5.0.8
traitlets        : 5.0.5

非常感谢任何帮助！

干杯