'亲爱的所有人，当我试图运行PyPSA示例时，我得到下面显示的错误消息。我用我的个人笔记本电脑和笔记本电脑在合作设置后尝试了这个问题，得到了同样的错误。两台笔记本电脑都显示"代理设置为关闭"。我也运行过DNS刷新，但运气不好。如有任何帮助，我将不胜感激。
"
import pypsa
import numpy as np
import pandas as pd
import os
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
%matplotlib inline
plt.rc('figure', figsize=(8,8))
network = pypsa.examples.ac_dc_meshed(from_master=True)
#get current type (AC or DC) of the lines from the buses
lines_current_type = network.lines.bus0.map(network.buses.carrier)
lines_current_type
network.plot(line_colors=lines_current_type.map(lambda ct: "r" if ct=="DC" else "b"),
title='Mixed AC (blue) - DC (red) network - DC (cyan)',
color_geomap=True, jitter=.3)
plt.tight_layout()
"
'---------------------------------------------------------------------------
gaierror Traceback (most recent call last)
~Anaconda3liburllibrequest.py in do_open(self, http_class, req, **http_conn_args)
1318 h.request(req.get_method(), req.selector, req.data, headers,
-> 1319 encode_chunked=req.has_header('Transfer-encoding'))
1320 except OSError as err: # timeout error
~Anaconda3libhttpclient.py in request(self, method, url, body, headers, encode_chunked)
1251 """Send a complete request to the server."""
-> 1252 self._send_request(method, url, body, headers, encode_chunked)
1253
~Anaconda3libhttpclient.py in _send_request(self, method, url, body, headers, encode_chunked)
1297 body = _encode(body, 'body')
-> 1298 self.endheaders(body, encode_chunked=encode_chunked)
1299
~Anaconda3libhttpclient.py in endheaders(self, message_body, encode_chunked)
1246 raise CannotSendHeader()
-> 1247 self._send_output(message_body, encode_chunked=encode_chunked)
1248
~Anaconda3libhttpclient.py in _send_output(self, message_body, encode_chunked)
1025 del self._buffer[:]
-> 1026 self.send(msg)
1027
~Anaconda3libhttpclient.py in send(self, data)
965 if self.auto_open:
--> 966 self.connect()
967 else:
~Anaconda3libhttpclient.py in connect(self)
1413
-> 1414 super().connect()
1415
~Anaconda3libhttpclient.py in connect(self)
937 self.sock = self._create_connection(
--> 938 (self.host,self.port), self.timeout, self.source_address)
939 self.sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
~Anaconda3libsocket.py in create_connection(address, timeout, source_address)
706 err = None
--> 707 for res in getaddrinfo(host, port, 0, SOCK_STREAM):
708 af, socktype, proto, canonname, sa = res
~Anaconda3libsocket.py in getaddrinfo(host, port, family, type, proto, flags)
751 addrlist = []
--> 752 for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
753 af, socktype, proto, canonname, sa = res
gaierror: [Errno 11002] getaddrinfo failed
During handling of the above exception, another exception occurred:
URLError Traceback (most recent call last)
~Anaconda3libsite-packagesIPythoncoreformatters.py in __call__(self, obj)
339 pass
340 else:
--> 341 return printer(obj)
342 # Finally look for special method names
343 method = get_real_method(obj, self.print_method)
~Anaconda3libsite-packagesIPythoncorepylabtools.py in <lambda>(fig)
246
247 if 'png' in formats:
--> 248 png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
249 if 'retina' in formats or 'png2x' in formats:
250 png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))
~Anaconda3libsite-packagesIPythoncorepylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
130 FigureCanvasBase(fig)
131
--> 132 fig.canvas.print_figure(bytes_io, **kw)
133 data = bytes_io.getvalue()
134 if fmt == 'svg':
~Anaconda3libsite-packagesmatplotlibbackend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, **kwargs)
2063 orientation=orientation,
2064 dryrun=True,
-> 2065 **kwargs)
2066 renderer = self.figure._cachedRenderer
2067 bbox_artists = kwargs.pop("bbox_extra_artists", None)
~Anaconda3libsite-packagesmatplotlibbackendsbackend_agg.py in print_png(self, filename_or_obj, metadata, pil_kwargs, *args, **kwargs)
525
526 else:
--> 527 FigureCanvasAgg.draw(self)
528 renderer = self.get_renderer()
529 with cbook._setattr_cm(renderer, dpi=self.figure.dpi),
~Anaconda3libsite-packagesmatplotlibbackendsbackend_agg.py in draw(self)
386 self.renderer = self.get_renderer(cleared=True)
387 with RendererAgg.lock:
--> 388 self.figure.draw(self.renderer)
389 # A GUI class may be need to update a window using this draw, so
390 # don't forget to call the superclass.
~Anaconda3libsite-packagesmatplotlibartist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~Anaconda3libsite-packagesmatplotlibfigure.py in draw(self, renderer)
1707 self.patch.draw(renderer)
1708 mimage._draw_list_compositing_images(
-> 1709 renderer, self, artists, self.suppressComposite)
1710
1711 renderer.close_group('figure')
~Anaconda3libsite-packagesmatplotlibimage.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~Anaconda3libsite-packagesmatplotlibartist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~Anaconda3libsite-packagescartopymplgeoaxes.py in draw(self, renderer, **kwargs)
477 self._done_img_factory = True
478
--> 479 return matplotlib.axes.Axes.draw(self, renderer=renderer, **kwargs)
480
481 def _update_title_position(self, renderer):
~Anaconda3libsite-packagesmatplotlibartist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~Anaconda3libsite-packagesmatplotlibaxes_base.py in draw(self, renderer, inframe)
2645 renderer.stop_rasterizing()
2646
-> 2647 mimage._draw_list_compositing_images(renderer, self, artists)
2648
2649 renderer.close_group('axes')
~Anaconda3libsite-packagesmatplotlibimage.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~Anaconda3libsite-packagesmatplotlibartist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~Anaconda3libsite-packagescartopymplfeature_artist.py in draw(self, renderer, *args, **kwargs)
153 except ValueError:
154 warnings.warn('Unable to determine extent. Defaulting to global.')
--> 155 geoms = self._feature.intersecting_geometries(extent)
156
157 # Combine all the keyword args in priority order.
~Anaconda3libsite-packagescartopyfeature__init__.py in intersecting_geometries(self, extent)
300 """
301 self.scaler.scale_from_extent(extent)
--> 302 return super(NaturalEarthFeature, self).intersecting_geometries(extent)
303
304 def with_scale(self, new_scale):
~Anaconda3libsite-packagescartopyfeature__init__.py in intersecting_geometries(self, extent)
108 extent_geom = sgeom.box(extent[0], extent[2],
109 extent[1], extent[3])
--> 110 return (geom for geom in self.geometries() if
111 geom is not None and extent_geom.intersects(geom))
112 else:
~Anaconda3libsite-packagescartopyfeature__init__.py in geometries(self)
284 path = shapereader.natural_earth(resolution=self.scale,
285 category=self.category,
--> 286 name=self.name)
287 geometries = tuple(shapereader.Reader(path).geometries())
288 _NATURAL_EARTH_GEOM_CACHE[key] = geometries
~Anaconda3libsite-packagescartopyioshapereader.py in natural_earth(resolution, category, name)
293 format_dict = {'config': config, 'category': category,
294 'name': name, 'resolution': resolution}
--> 295 return ne_downloader.path(format_dict)
296
297
~Anaconda3libsite-packagescartopyio__init__.py in path(self, format_dict)
220 else:
221 # we need to download the file
--> 222 result_path = self.acquire_resource(target_path, format_dict)
223
224 return result_path
~Anaconda3libsite-packagescartopyioshapereader.py in acquire_resource(self, target_path, format_dict)
348 url = self.url(format_dict)
349
--> 350 shapefile_online = self._urlopen(url)
351
352 zfh = ZipFile(six.BytesIO(shapefile_online.read()), 'r')
~Anaconda3libsite-packagescartopyio__init__.py in _urlopen(self, url)
259 """
260 warnings.warn('Downloading: {}'.format(url), DownloadWarning)
--> 261 return urlopen(url)
262
263 @staticmethod
~Anaconda3liburllibrequest.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
220 else:
221 opener = _opener
--> 222 return opener.open(url, data, timeout)
223
224 def install_opener(opener):
~Anaconda3liburllibrequest.py in open(self, fullurl, data, timeout)
523 req = meth(req)
524
--> 525 response = self._open(req, data)
526
527 # post-process response
~Anaconda3liburllibrequest.py in _open(self, req, data)
541 protocol = req.type
542 result = self._call_chain(self.handle_open, protocol, protocol +
--> 543 '_open', req)
544 if result:
545 return result
~Anaconda3liburllibrequest.py in _call_chain(self, chain, kind, meth_name, *args)
501 for handler in handlers:
502 func = getattr(handler, meth_name)
--> 503 result = func(*args)
504 if result is not None:
505 return result
~Anaconda3liburllibrequest.py in https_open(self, req)
1360 def https_open(self, req):
1361 return self.do_open(http.client.HTTPSConnection, req,
-> 1362 context=self._context, check_hostname=self._check_hostname)
1363
1364 https_request = AbstractHTTPHandler.do_request_
~Anaconda3liburllibrequest.py in do_open(self, http_class, req, **http_conn_args)
1319 encode_chunked=req.has_header('Transfer-encoding'))
1320 except OSError as err: # timeout error
-> 1321 raise URLError(err)
1322 r = h.getresponse()
1323 except:
URLError: <urlopen error [Errno 11002] getaddrinfo failed>
<Figure size 576x576 with 1 Axes>'
错误消失与IT团队讨论后与公司的笔记本电脑和禁用一些安全设置。对于人员问题，它在刷新DNS后消失了，但不确定究竟是什么解决了这个问题。