Question

我一直在尝试使用Python 2.7和python-escpos打印带有Epson TM-t20ii的简单收据。安装了打印机驱动程序，还将libusb 1.2.6 .sys和.dll文件复制到各自的文件夹中。

下面是程序的样子：

from escpos import *

Generic = printer.Usb(0x04B8,0x0E15)
Generic.text("Test Print!\n")
Generic.cut()

这是追溯：

Traceback (most recent call last):
  File "D:/Proyectos/QT/PymePOS/pymepos/pyscrpts/print.py", line 7, in <module>
    Generic = printer.Usb(0x04B8,0x0E15)
  File "C:\Python27\lib\site-packages\escpos\printer.py", line 34, in __init__
    self.open()
  File "C:\Python27\lib\site-packages\escpos\printer.py", line 52, in open
    self.device.detach_kernel_driver(0)
  File "C:\Python27\lib\site-packages\usb\core.py", line 1005, in detach_kernel_driver
    interface)
  File "C:\Python27\lib\site-packages\usb\backend\libusb0.py", line 541, in detach_kernel_driver
    _check(_lib.usb_detach_kernel_driver_np(dev_handle, intf))
  File "C:\Python27\lib\ctypes\__init__.py", line 378, in __getattr__
    func = self.__getitem__(name)
  File "C:\Python27\lib\ctypes\__init__.py", line 383, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'usb_detach_kernel_driver_np' not found

我正在使用Win10 64位和打印出来的usb 任何workarrounds或解决方案！？谢谢！

AttributeError：function＆＃39; usb_detach_kernel_driver_np＆＃39;未找到

0 个答案: