error: [Errno 104] Connection reset by peer

[Jerome de Leon]

When I do:

$ from astroML.datasets import fetch_imaging_sample

$ data = fetch_imaging_sample()

I receive the following error (full details below): 

error: [Errno 104] Connection reset by peer

Someone in StackOverflow (http://stackoverflow.com/questions/20568216/python-handling-socket-error-errno-104-connection-reset-by-peer) 

suggested to do:

from socket import error as SocketError
import errno

try:
    response = urllib2.urlopen(request).read()
except SocketError as e:
    if e.errno != errno.ECONNRESET:
        raise # Not error we are looking for
    pass # Handle error here.

Is this commendable? Thank you!

---------------------------------------------------------------------------

error                                     Traceback (most recent call last)

<ipython-input-3-bf612951910b> in <module>()

----> 1 data = fetch_imaging_sample()

/home/dl/miniconda2/envs/astroconda/lib/python2.7/site-packages/astroML/datasets/imaging_sample.pyc in fetch_imaging_sample(data_home, download_if_missing)

    107                           'set download_if_missing=True to download')

    108 

--> 109         fitsdata = download_with_progress_bar(DATA_URL)

    110         open(archive_file, 'wb').write(fitsdata)

    111 

/home/dl/miniconda2/envs/astroconda/lib/python2.7/site-packages/astroML/datasets/tools/download.pyc in download_with_progress_bar(data_url, return_buffer)

     39     num_units = 40

     40 

---> 41     fhandle = urlopen(data_url)

     42     content_length = url_content_length(fhandle)

     43 

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in urlopen(url, data, timeout, cafile, capath, cadefault, context)

    152     else:

    153         opener = _opener

--> 154     return opener.open(url, data, timeout)

    155 

    156 def install_opener(opener):

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in open(self, fullurl, data, timeout)

    429             req = meth(req)

    430 

--> 431         response = self._open(req, data)

    432 

    433         # post-process response

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in _open(self, req, data)

    447         protocol = req.get_type()

    448         result = self._call_chain(self.handle_open, protocol, protocol +

--> 449                                   '_open', req)

    450         if result:

    451             return result

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in _call_chain(self, chain, kind, meth_name, *args)

    407             func = getattr(handler, meth_name)

    408 

--> 409             result = func(*args)

    410             if result is not None:

    411                 return result

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in http_open(self, req)

   1225 

   1226     def http_open(self, req):

-> 1227         return self.do_open(httplib.HTTPConnection, req)

   1228 

   1229     http_request = AbstractHTTPHandler.do_request_

/home/dl/miniconda2/envs/astroconda/lib/python2.7/urllib2.pyc in do_open(self, http_class, req, **http_conn_args)

   1198         else:

   1199             try:

-> 1200                 r = h.getresponse(buffering=True)

   1201             except TypeError: # buffering kw not supported

   1202                 r = h.getresponse()

/home/dl/miniconda2/envs/astroconda/lib/python2.7/httplib.pyc in getresponse(self, buffering)

   1134 

   1135         try:

-> 1136             response.begin()

   1137             assert response.will_close != _UNKNOWN

   1138             self.__state = _CS_IDLE

/home/dl/miniconda2/envs/astroconda/lib/python2.7/httplib.pyc in begin(self)

    451         # read until we get a non-100 response

    452         while True:

--> 453             version, status, reason = self._read_status()

    454             if status != CONTINUE:

    455                 break

/home/dl/miniconda2/envs/astroconda/lib/python2.7/httplib.pyc in _read_status(self)

    407     def _read_status(self):

    408         # Initialize with Simple-Response defaults

--> 409         line = self.fp.readline(_MAXLINE + 1)

    410         if len(line) > _MAXLINE:

    411             raise LineTooLong("header line")

/home/dl/miniconda2/envs/astroconda/lib/python2.7/socket.pyc in readline(self, size)

    478             while True:

    479                 try:

--> 480                     data = self._sock.recv(self._rbufsize)

    481                 except error, e:

    482                     if e.args[0] == EINTR:

error: [Errno 104] Connection reset by peer

[Jake Vanderplas]

Hi,

Some of the dataset fetching routines currently don't work because of changing architecture/URLs of data sources. I'm hoping to address this in the coming months, but it's a relatively large undertaking when combined with all the other dependency changes is astroML. There's nobody else to help me in this, and I have a full time job and a family to distract me from the task :)

We're putting in an NSF grant this week to hopefully support some maintenance and improvement of the package, so keep your fingers crossed.

Sorry I can't be more helpful at the moment,

   Jake

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