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doc/gallery/multiple-outputs.ipynb.
Interactive online version:
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Choosing from Multiple Outputs¶
By default, the last output of the selected cell is used as a thumbnail. If that’s what you want, you can simply use the nbsphinx-thumbnail cell tag.
If you want to specify one of multiple outputs, you can add a (zero-based) "output-index"
to your "nbsphinx-thumbnail"
cell metadata.
The following cell has this metadata, selecting the third output to be used as thumbnail in the gallery.
{
"nbsphinx-thumbnail": {
"output-index": 2
}
}
[1]:
from IPython.display import Image
display(Image(url='https://jupyter.org/assets/nav_logo.svg'))
print('Hello!')
display(Image(filename='../images/notebook_icon.png'))
display(Image(url='https://www.python.org/static/img/python-logo-large.png', embed=True))
Hello!

---------------------------------------------------------------------------
gaierror Traceback (most recent call last)
/usr/lib/python3.9/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1345 try:
-> 1346 h.request(req.get_method(), req.selector, req.data, headers,
1347 encode_chunked=req.has_header('Transfer-encoding'))
/usr/lib/python3.9/http/client.py in request(self, method, url, body, headers, encode_chunked)
1278 """Send a complete request to the server."""
-> 1279 self._send_request(method, url, body, headers, encode_chunked)
1280
/usr/lib/python3.9/http/client.py in _send_request(self, method, url, body, headers, encode_chunked)
1324 body = _encode(body, 'body')
-> 1325 self.endheaders(body, encode_chunked=encode_chunked)
1326
/usr/lib/python3.9/http/client.py in endheaders(self, message_body, encode_chunked)
1273 raise CannotSendHeader()
-> 1274 self._send_output(message_body, encode_chunked=encode_chunked)
1275
/usr/lib/python3.9/http/client.py in _send_output(self, message_body, encode_chunked)
1033 del self._buffer[:]
-> 1034 self.send(msg)
1035
/usr/lib/python3.9/http/client.py in send(self, data)
973 if self.auto_open:
--> 974 self.connect()
975 else:
/usr/lib/python3.9/http/client.py in connect(self)
1440
-> 1441 super().connect()
1442
/usr/lib/python3.9/http/client.py in connect(self)
944 """Connect to the host and port specified in __init__."""
--> 945 self.sock = self._create_connection(
946 (self.host,self.port), self.timeout, self.source_address)
/usr/lib/python3.9/socket.py in create_connection(address, timeout, source_address)
822 err = None
--> 823 for res in getaddrinfo(host, port, 0, SOCK_STREAM):
824 af, socktype, proto, canonname, sa = res
/usr/lib/python3.9/socket.py in getaddrinfo(host, port, family, type, proto, flags)
953 addrlist = []
--> 954 for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
955 af, socktype, proto, canonname, sa = res
gaierror: [Errno -2] Name or service not known
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
<ipython-input-1-913573d65a6a> in <module>
4 print('Hello!')
5 display(Image(filename='../images/notebook_icon.png'))
----> 6 display(Image(url='https://www.python.org/static/img/python-logo-large.png', embed=True))
/usr/lib/python3/dist-packages/IPython/core/display.py in __init__(self, data, url, filename, format, embed, width, height, retina, unconfined, metadata)
1222 self.retina = retina
1223 self.unconfined = unconfined
-> 1224 super(Image, self).__init__(data=data, url=url, filename=filename,
1225 metadata=metadata)
1226
/usr/lib/python3/dist-packages/IPython/core/display.py in __init__(self, data, url, filename, metadata)
628 self.metadata = {}
629
--> 630 self.reload()
631 self._check_data()
632
/usr/lib/python3/dist-packages/IPython/core/display.py in reload(self)
1254 """Reload the raw data from file or URL."""
1255 if self.embed:
-> 1256 super(Image,self).reload()
1257 if self.retina:
1258 self._retina_shape()
/usr/lib/python3/dist-packages/IPython/core/display.py in reload(self)
658 # Deferred import
659 from urllib.request import urlopen
--> 660 response = urlopen(self.url)
661 data = response.read()
662 # extract encoding from header, if there is one:
/usr/lib/python3.9/urllib/request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
212 else:
213 opener = _opener
--> 214 return opener.open(url, data, timeout)
215
216 def install_opener(opener):
/usr/lib/python3.9/urllib/request.py in open(self, fullurl, data, timeout)
515
516 sys.audit('urllib.Request', req.full_url, req.data, req.headers, req.get_method())
--> 517 response = self._open(req, data)
518
519 # post-process response
/usr/lib/python3.9/urllib/request.py in _open(self, req, data)
532
533 protocol = req.type
--> 534 result = self._call_chain(self.handle_open, protocol, protocol +
535 '_open', req)
536 if result:
/usr/lib/python3.9/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args)
492 for handler in handlers:
493 func = getattr(handler, meth_name)
--> 494 result = func(*args)
495 if result is not None:
496 return result
/usr/lib/python3.9/urllib/request.py in https_open(self, req)
1387
1388 def https_open(self, req):
-> 1389 return self.do_open(http.client.HTTPSConnection, req,
1390 context=self._context, check_hostname=self._check_hostname)
1391
/usr/lib/python3.9/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
1347 encode_chunked=req.has_header('Transfer-encoding'))
1348 except OSError as err: # timeout error
-> 1349 raise URLError(err)
1350 r = h.getresponse()
1351 except:
URLError: <urlopen error [Errno -2] Name or service not known>