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Streamline file reading to use io streams #498

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Streamline file reading to use io streams #498

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0378030
Add the ability to pass sig and hea streams to rdrecord, rdheader and…
Ivorforce Jun 27, 2024
39cd94b
Remove the .astype call in rdann, as a numpy upper bound is sufficien…
Ivorforce Jul 4, 2024
7a83307
Streamline file reading for single segment records, record headers an…
Ivorforce Jul 4, 2024
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15 changes: 10 additions & 5 deletions wfdb/io/_coreio.py
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Original file line number Diff line number Diff line change
@@ -1,14 +1,16 @@
import posixpath
import os

from wfdb.io import _url
from wfdb.io.download import config


def _open_file(
pn_dir,
file_name,
mode="r",
*,
dir_name="",
pn_dir=None,
buffering=-1,
encoding=None,
errors=None,
Expand All @@ -24,15 +26,18 @@ def _open_file(

Parameters
----------
pn_dir : str or None
The PhysioNet database directory where the file is stored, or None
if file_name is a local path.
file_name : str
The name of the file, either as a local filesystem path (if
`pn_dir` is None) or a URL path (if `pn_dir` is a string.)
mode : str, optional
The standard I/O mode for the file ("r" by default). If `pn_dir`
is not None, this must be "r", "rt", or "rb".
dir_name : str or None
If passed, and pn_dir is None, the directory will be prepended
to the file_name.
pn_dir : str or None
The PhysioNet database directory where the file is stored, or None
if file_name is a local path.
buffering : int, optional
Buffering policy.
encoding : str, optional
Expand All @@ -48,7 +53,7 @@ def _open_file(
"""
if pn_dir is None:
return open(
file_name,
os.path.join(dir_name, file_name),
mode,
buffering=buffering,
encoding=encoding,
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