add compatibility with pathlib.Path to root_io #699
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tmadlener
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Oct 23, 2024
python/podio/root_io.py
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| if isinstance(filenames, list): | ||
| str_filenames = [] | ||
| for f in filenames: | ||
| if isinstance(f, (str, Path)): | ||
| str_filenames.append(str(f)) | ||
| else: | ||
| raise TypeError(f"Invalid filename type: {f} (type: {type(f)})") | ||
| return str_filenames | ||
|
|
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| raise TypeError(f"Invalid filenames argument: {filenames} (type: {type(filenames)})") |
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Can we not simply do
return [str(e) for e in filenames]and the conversion will raise the TypeError for us in case it is not possible to do it?
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Ok. Do you have any objections to using os.fspath instead of str? It is better for catching wrong types, e.g. if None is passed
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If reader.openFiles swallows a list of os.fspath, I have no objections.
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os.fspath() only returns str or bytes. I am unsure what happens if a bytes path is given to reader.openFiles. fspath is just better at throwing TypeError if the argument is not pathlike compared to str(). https://docs.python.org/3/library/os.html#os.fspath
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