Getting the error: expected string or bytes-like object when using re split method

问题

This is continuation from the following OP1. While the suggestion by @Rakesh is awesomely compact, but the same solution cannot function properly when used with an open file which is accessible from the edf_file link.

The code below

file= 'edfx\\SC4002EC-Hypnogram.edf' # Please change according to the location of you file
with open(file, mode='rb') as f:  
    raw_hypno = re.split(r"Sleep stage|Movement time", f)

will ouput an error of

TypeError: expected string or bytes-like object

Appreciate for any insight.

回答1:

Dirty workaround

Extract the binary and get the string

raw_hypno_single = [x for x in str(f.read()).split('Sleep stage',1)][1:]

Then, split the sleep stage and movement as suggested in OP1

  raw_hypno =re.split(r"Sleep stage|Movement time", raw_hypno_single[0])

The full code is

file= 'edfx\\SC4002EC-Hypnogram.edf' # Please change according to the location of you file
with open(file, mode='rb') as f:  
  raw_hypno_single = [x for x in str(f.read()).split('Sleep stage',1)][1:]
  raw_hypno =re.split(r"Sleep stage|Movement time", raw_hypno_single[0])

来源：https://stackoverflow.com/questions/62304903/getting-the-error-expected-string-or-bytes-like-object-when-using-re-split-meth