我的教程(http://pyusb.sourceforge.net/docs/1.0/tutorial.html)蟒蛇pyusb进口usb.core不起作用
我在Windows XP SP3, 下面我Python版本是2.7,我下载并安装了pyusb-1.0.0-a1.zip
和libusb-win32-bin-1.2.4.0.zip
import usb
工作正常
但
import usb.core
完全不
工作,它说
Traceback (most recent call last):
File "D:\py\usb.py", line 1, in <module>
from usb import core
File "D:\py\usb.py", line 1, in <module>
from usb import core
ImportError: cannot import name core
任何解决方案?
谢谢!
p.s. “从USB进口芯” 这使
Traceback (most recent call last):
File "D:\py\usb.py", line 1, in <module>
from usb import core
File "D:\py\usb.py", line 1, in <module>
from usb import core
ImportError: cannot import name core
完整的源代码是在这里
from usb import core
#find device
dev = usb.core.find(idVendor=0x1516, idProduct=0x8628)
#found?
if dev is None :
raise ValueError('device not found')
#set the active config. with no args, the first config will be the active one
dev.set_configuration()
#get an end point instance
ep = usb.util.find_descriptor(
dev.get_interface_altsetting(), #first interface
#match the first Out Endpoint
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_OUT)
assert ep is not None
while(1):
ep.write(0x5553424350DDBC880000000000000600000000000000000000000000000000)
ep.write(0x5553425350ddbc880000000000)
我将目录更改为桌面,名称为usb2.py它表示Traceback(最近调用最后一次): 文件“C:/ Documents and Settings/kty1104/Desktop/usb2.py”,第3行,在 dev = usb.core.find(idVendor = 0x1516,idProduct = 0x8628) NameError:名称'usb'未定义 –
2011-06-02 10:45:24
感谢它正常工作现在是正常的,“导入usb”不起作用,但“导入usb .core“的作品? – 2011-06-02 10:47:59
尝试打开交互式Python shell(或者甚至更好的安装和使用[IPython](http://ipython.scipy.org))并且执行:'import usb',next'help(usb)'(或'usb?'in IPython),找到'FILE'行并检查usb模块是否在给定的路径(至少__init__.py文件和'core.py'文件是一个名为'usb *'的目录)。 – Xaerxess 2011-06-02 11:17:06