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No module named usb.core

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548
on 8/27/14, 3:44 AM 6,574 views

I am trying to install this module ESC/POS Hardware Driver But giving this error except_orm: ('Error', u'Unable to install module "hw_escpos" because an external dependency is not met: No module named usb.core')

Any one can help how to install it??

 

1
John Baldwin
On 2/9/15, 4:58 AM

Prequisites:

##Remove existing Ubuntu/Deb usb app
sudo apt-get remove python-usb

##Since all versions of pyusb are either alpha or beta you must declare a specific version. 1.0.0b2 was the latest at this time.
pip install pyusb==1.0.0b2 

##QR Code is the next requirement
apt-get install python-qrcode

Hopefully this will save everyone a ton of headaches.

1
Mario Arias Badila
On 8/27/14, 1:24 PM

Hi, you need to install lates pyusb...

'sudo pip install --pre pyusb'

Regards,

-Mario

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Asked: 8/27/14, 3:44 AM
Seen: 6574 times
Last updated: 3/16/15, 8:10 AM