Authentication handling in wfdb.io.dl_files, error 403

Bắt đầu tại wfdb/io/download.py với dl_files, dl_pn_file và dl_full_file, sau đó kiểm tra RangeTransfer và _parse_headers trong wfdb/io/_url.py. Tái hiện yêu cầu 403 đối với URL PhysioNet yêu cầu xác thực và theo dõi cách quyền truy cập được xử lý; công việc được xem là hoàn tất khi có một quy trình xác thực được tài liệu hóa và được hỗ trợ, cho phép dl_files tải các tệp được chọn yêu cầu thông tin xác thực.

Context

I am trying to download specific files (subsets) from credentialed databases on PhysioNet using wfdb helper functions.

What I am trying to do is downloading selected files (not the entire dataset), e.g. :

from wfdb.io import dl_files
dl_files('mimiciv','data\\tmp',['hosp/patients.csv.gz'])

Stack trace

Created local base download directory: data\tmp
Downloading files...
Traceback (most recent call last):
  File "c:\Users\pa10198\Documents\_code\zarrow\dev.py", line 12, in <module>
    dl_files('mimiciv','data\\tmp',['hosp/patients.csv.gz'])
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\download.py", line 544, in dl_files
    pool.map(dl_pn_file, dl_inputs)
  File "C:\Users\pa10198\AppData\Local\Programs\Python\Python312\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\AppData\Local\Programs\Python\Python312\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
  File "C:\Users\pa10198\AppData\Local\Programs\Python\Python312\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\AppData\Local\Programs\Python\Python312\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\download.py", line 450, in dl_pn_file
    dl_full_file(url, local_file)
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\download.py", line 472, in dl_full_file
    content = readfile.read()
              ^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\_url.py", line 580, in read
    result = b"".join(self._read_range(start, end))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\_url.py", line 473, in _read_range
    with RangeTransfer(self._current_url, req_start, req_end) as xfer:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\_url.py", line 167, in __init__
    self._parse_headers(method, self._response)
  File "C:\Users\pa10198\Documents\_code\zarrow\.venv\Lib\site-packages\wfdb\io\_url.py", line 213, in _parse_headers
    raise cls(
wfdb.io._url.NetFilePermissionError: 403 Error: Forbidden for url: https://physionet.org/files/mimiciv/3.1/hosp/patients.csv.gz

Remarks

• I have the credentialed physionet account and access to the databases I request.
• The same URL works in a browser after login and the file downloads successfully.

Questions

• Is there any supported way to pass authentification when using dl_files or related functions, e.g. through env vars, config, etc.
• If not, are there recommended workarounds (e.g., using cookies, tokens, or another library)? Ideally not leaving python and avoiding the multiplication of libraries within projects.

Feature idea

It would be very useful if wfdb supported:

• authentication for credentialed MIMIC-IV (and similar datasets), and
• partial downloads (which already works on the open datasets and seem supported structurally, but fail due to auth)

This would allow to avoid downloading entire large datasets and keep workflows within a single library.