Error on visualize.py

[mehrshadmmt]

Hello I really want to use this repository for my deep learning course. After downloaded datasets when I want to run 'runtime.py' on google colab(I don't have GPU to run on my system), some error happened. The error is related to 'visualize.py'. Error is :
I really need this code please help me to solve it.

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 354, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.7/http/client.py", line 1281, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1327, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1276, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib/python3.7/http/client.py", line 976, in send
self.connect()
File "/usr/local/lib/python3.7/dist-packages/urllib3/connection.py", line 181, in connect
conn = self._new_conn()
File "/usr/local/lib/python3.7/dist-packages/urllib3/connection.py", line 168, in _new_conn
self, "Failed to establish a new connection: %s" % e)
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7fcf91fe6c50>: Failed to establish a new connection: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/local/lib/python3.7/dist-packages/urllib3/util/retry.py", line 399, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=8097): Max retries exceeded with url: /events (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fcf91fe6c50>: Failed to establish a new connection: [Errno 111] Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/visdom/init.py", line 263, in _send
data=json.dumps(msg),
File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 119, in post
return request('post', url, data=data, json=json, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 61, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 530, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 643, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8097): Max retries exceeded with url: /events (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fcf91fe6c50>: Failed to establish a new connection: [Errno 111] Connection refused'))
Exception in user code:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/urllib3/connection.py", line 159, in _new_conn
(self._dns_host, self.port), self.timeout, **extra_kw)
File "/usr/local/lib/python3.7/dist-packages/urllib3/util/connection.py", line 80, in create_connection
raise err
File "/usr/local/lib/python3.7/dist-packages/urllib3/util/connection.py", line 70, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 354, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.7/http/client.py", line 1281, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1327, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1276, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.7/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib/python3.7/http/client.py", line 976, in send
self.connect()
File "/usr/local/lib/python3.7/dist-packages/urllib3/connection.py", line 181, in connect
conn = self._new_conn()
File "/usr/local/lib/python3.7/dist-packages/urllib3/connection.py", line 168, in _new_conn
self, "Failed to establish a new connection: %s" % e)
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7fcf940a45d0>: Failed to establish a new connection: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/local/lib/python3.7/dist-packages/urllib3/util/retry.py", line 399, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=8097): Max retries exceeded with url: /events (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fcf940a45d0>: Failed to establish a new connection: [Errno 111] Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/visdom/init.py", line 263, in _send
data=json.dumps(msg),
File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 119, in post
return request('post', url, data=data, json=json, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/api.py", line 61, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 530, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/sessions.py", line 643, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8097): Max retries exceeded with url: /events (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fcf940a45d0>: Failed to establish a new connection: [Errno 111] Connection refused'))
Traceback (most recent call last):
File "runtime.py", line 42, in
trainer.train(args.cls)
File "/content/gdrive/MyDrive/Txt2Img(2)/trainer.py", line 67, in train
self._train_gan(cls)
File "/content/gdrive/MyDrive/Txt2Img(2)/trainer.py", line 177, in _train_gan
for sample in self.data_loader:
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/dataloader.py", line 652, in next
data = self._next_data()
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/dataloader.py", line 1327, in _next_data
return self._process_data(data)
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/dataloader.py", line 1373, in _process_data
data.reraise()
File "/usr/local/lib/python3.7/dist-packages/torch/_utils.py", line 460, in reraise
raise RuntimeError(msg) from None
RuntimeError: Caught UnicodeDecodeError in DataLoader worker process 6.
Original Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/_utils/worker.py", line 302, in _worker_loop
data = fetcher.fetch(index)
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/_utils/fetch.py", line 49, in fetch
data = [self.dataset[idx] for idx in possibly_batched_index]
File "/usr/local/lib/python3.7/dist-packages/torch/utils/data/_utils/fetch.py", line 49, in
data = [self.dataset[idx] for idx in possibly_batched_index]
File "/content/gdrive/MyDrive/Txt2Img(2)/txt2image_dataset.py", line 52, in getitem
txt = np.array(example['txt']).astype(str)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 4: ordinal not in range(128)

[SinuoWang]

I have the same issue, did you fix this problem?