如何将Pandas DataFrame转换为类似字节的对象

Posted 2021-04-12

您好我正在尝试将我的df转换为二进制并将其存储在变量中。

my_df：

 df=pd.DataFrame({'A':[1,2,3],'B':[4,5,6]})

我的代码：

 import io
 towrite = io.BytesIO()
 df.to_excel(towrite)  # write to BytesIO buffer
 towrite.seek(0)  # reset pointer

我正在获得AttributeError: '_io.BytesIO' object has no attribute 'write_cells'

完全追溯：

AttributeError                            Traceback (most recent call last)
<ipython-input-25-be6ee9d9ede6> in <module>()
      1 towrite = io.BytesIO()
----> 2 df.to_excel(towrite)  # write to BytesIO buffer
      3 towrite.seek(0)  # reset pointer
      4 encoded = base64.b64encode(towrite.read())  #

C:ProgramDataAnaconda3libsite-packagespandascoreframe.py in to_excel(self, excel_writer, sheet_name, na_rep, float_format, columns, header, index, index_label, startrow, startcol, engine, merge_cells, encoding, inf_rep, verbose, freeze_panes)
   1422         formatter.write(excel_writer, sheet_name=sheet_name, startrow=startrow,
   1423                         startcol=startcol, freeze_panes=freeze_panes,
-> 1424                         engine=engine)
   1425 
   1426     def to_stata(self, fname, convert_dates=None, write_index=True,

C:ProgramDataAnaconda3libsite-packagespandasioformatsexcel.py in write(self, writer, sheet_name, startrow, startcol, freeze_panes, engine)
    624 
    625         formatted_cells = self.get_formatted_cells()
--> 626         writer.write_cells(formatted_cells, sheet_name,
    627                            startrow=startrow, startcol=startcol,
    628                            freeze_panes=freeze_panes)

AttributeError: '_io.BytesIO' object has no attribute 'write_cells'

答案

我通过将pandas升级到更新版本来解决了这个问题。

 import io
 towrite = io.BytesIO()
 df.to_excel(towrite)  # write to BytesIO buffer
 towrite.seek(0) 
 print(towrite)
 b''
 print(type(towrite))
 _io.BytesIO

如果你想看到类似字节的对象使用getvalue，

print(towrite.getvalue())
b'PKx03x04x14x00x00x00x08x00x00x00!x00<xb