Pandas创建DataFrame提示:type object 'object' has no attribute 'dtype'解决方案_python

import pandas as pd

symbol_info_columns = ['1', '持仓方向', '持仓量', '持仓收益率', '持仓收益', '持仓均价', '当前价格', '最大杠杆']  # v3
symbol_config = {'BTC': 'BTC-USDT-210924', 'LTC': 'LTC-USDT-210924', 'EOS': 'EOS-USDT-210924', 'ETH': 'ETH-USDT-210924', 'XRP': 'XRP-USDT-210924', 'FIL': 'FIL-USDT-210924'}
symbol_info = pd.DataFrame()
# dates = pd.date_range('20190101', periods=6)
# num_df = pd.DataFrame(data=np.random.randn(6, 8), index=dates, columns=symbol_info_columns)
symbol_info = pd.DataFrame(index=symbol_config.keys(), columns=symbol_info_columns)

    def __init__(self, data=None, index=None, columns=None, dtype=None, copy=False):
        if data is None:
            data = {}

elif isinstance(data, dict):
    mgr = init_dict(data, index, columns, dtype=dtype)

if columns is not None:
	if missing.any() and not is_integer_dtype(dtype):
	    if dtype is None or np.issubdtype(dtype, np.flexible):
	        # GH#1783
	        nan_dtype = object

nan_dtype = np.dtype(object)