Read MNE-Python preferences from environment or config file.
None
| str
The preference key to look for. The os environment is searched first, then the mne-python config file is parsed. If None, all the config parameters present in environment variables or the path are returned. If key is an empty string, a list of all valid keys (but not values) is returned.
str
| None
Value to return if the key is not found.
If True, raise an error if the key is not found (instead of returning default).
str
| None
The folder that contains the .mne config folder. If None, it is found automatically.
If True, consider env vars, if available. If False, only use MNE-Python configuration file values.
New in version 0.18.
See also
mne.get_config
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