wfdb.dldatabase('challenge/2018/training', 'folder')
~/anaconda3/lib/python3.6/site-packages/wfdb/readwrite/records.py in dldatabase(pbdb, dlbasedir, records, annotators, keepsubdirs, overwrite)
1275 allfiles.append(rec+'.hea')
1276 dirname, baserecname = os.path.split(rec)
-> 1277 record = rdheader(baserecname, pbdir = posixpath.join(pbdb, dirname))
1278
1279 # Single segment record

~/anaconda3/lib/python3.6/site-packages/wfdb/readwrite/records.py in rdheader(recordname, pbdir, rdsegments)
929
930 # Read the header file. Separate comment and non-comment lines
--> 931 headerlines, commentlines = _headers.getheaderlines(recordname, pbdir)
932
933 # Get fields from record line

~/anaconda3/lib/python3.6/site-packages/wfdb/readwrite/_headers.py in getheaderlines(recordname, pbdir)
456 # Read online header file
457 else:
--> 458 headerlines, commentlines = downloads.streamheader(recordname, pbdir)
459
460 return headerlines, commentlines

~/anaconda3/lib/python3.6/site-packages/wfdb/readwrite/downloads.py in streamheader(recordname, pbdir)
13
14 # Raise HTTPError if invalid url
---> 15 r.raise_for_status()
16
17 # Get each line as a string

~/anaconda3/lib/python3.6/site-packages/requests/models.py in raise_for_status(self)
926
927 if http_error_msg:
--> 928 raise HTTPError(http_error_msg, response=self)
929
930 def close(self):

HTTPError: 404 Client Error: Not Found for url: http://physionet.org/physiobank/database/challenge/2018/training/tr03-0005/.hea