`scipy.constants._codata:find`

Signature

def find(sub: str | None = None, disp: bool = False) → Any

Return list of physical_constant keys containing a given string.

sub : str: Sub-string to search keys for. By default, return all keys.
disp : bool: If True, print the keys that are found and return None. Otherwise, return the list of keys without printing anything.

keys : list or None: If disp is False, the list of keys is returned. Otherwise, None is returned.

Array API Standard Support

find is not in-scope for support of Python Array API Standard compatible backends other than NumPy.

See dev-arrayapi for more information.

from scipy.constants import find, physical_constants

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Which keys in the ``physical_constants`` dictionary contain 'boltzmann'?

find('boltzmann')

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Get the constant called 'Boltzmann constant in Hz/K':

physical_constants['Boltzmann constant in Hz/K']

✗

Find constants with 'radius' in the key:

find('radius')
physical_constants['classical electron radius']

✗