This issue is linked to this one : #73

You should be able to open the file on any filesystem (local, remote S3, HDFS...) and read the contents of it using wfdb-python, instead of implementing a connection to these different filesystems directly into wfdb-python :)

Hey guys thanks for the suggestion! I can get this to work by doing this so I'll make a pull request shortly:

>>> import s3fs
>>> fs = s3fs.S3FileSystem(anon=True)
>>> with fs.open('s3://BUCKET_NAME/100.hea') as f: print(f.readlines())
... 
[b'# unnecessary comment\n', b'100 2 360 650000\r\n', b'100.dat 212 200 11 1024 995 -22131 0 MLII\n',
b'\r\n', b'100.dat 212 200 11 1024 1011 20052 0 V5\r\n', b'# 69 M 1085 1629 x1\r\n',
b'# Aldomet, Inderal\r\n']