NameError: name 'lib' is not defined

[Changyiyu]

Hello,

I try tiny-yolo-image-loop.ipynb, then it has the problem as shown below

import sys
import os, platform
import json
import numpy as np
import cv2
from ctypes import c_char_p # i add import
from matplotlib import pyplot as plt
from PIL import Image
from datetime import datetime
from qnn import TinierYolo
from qnn import utils
sys.path.append("/opt/darknet/python/")
from darknet import *
from tests.test_qnn import test_tinier_yolo # i add import

%matplotlib inline
import IPython

1. Instantiate a Classifier

---

conv0_weights = np.load('/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-conv0-W.npy', encoding="latin1")
conv0_weights_correct = np.transpose(conv0_weights, axes=(3, 2, 1, 0))
conv8_weights = np.load('/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-conv8-W.npy', encoding="latin1")
conv8_weights_correct = np.transpose(conv8_weights, axes=(3, 2, 1, 0))
conv0_bias = np.load('/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-conv0-bias.npy', encoding="latin1")
conv0_bias_broadcast = np.broadcast_to(conv0_bias[:,np.newaxis], (net['conv1']['input'][0],net['conv1']['input'][1]net['conv1']['input'][1]))
conv8_bias = np.load('/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-conv8-bias.npy', encoding="latin1")
conv8_bias_broadcast = np.broadcast_to(conv8_bias[:,np.newaxis], (125,1313))

cfg = c_char_p("/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-bwn-3bit-relu-nomaxpool.cfg".encode())

net_darknet = lib.parse_network_cfg(file_name_cfg)

NameError Traceback (most recent call last)
in ()
14 cfg = c_char_p("/home/xilinx/jupyter_notebooks/QNN-MO-PYNQ/qnn/params/tinier-yolo-bwn-3bit-relu-nomaxpool.cfg".encode())
15
---> 16 net_darknet = lib.parse_network_cfg(file_name_cfg)

NameError: name 'lib' is not defined

How can I solve this problem? Thank you.

[giuliogamba]

Have you installed by using sudo pip3 install git+https://github.com/Xilinx/QNN-MO-PYNQ.git?
That command will also install a version of darknet, and compile the darknet python library (under /opt/darknet/python/) which is used in the example notebook.
The lib is instantiated in the darknet.py file