skbio.alignment.TabularMSA.__bool__¶

TabularMSA.__bool__()[source]¶

Boolean indicating whether the MSA is empty or not.

State: Experimental as of 0.4.1.

Returns:	bool False if there are no sequences, OR if there are no positions (i.e., all sequences are empty). True otherwise.

Examples

>>> from skbio import DNA, TabularMSA

MSA with sequences and positions:

>>> msa = TabularMSA([DNA('ACG'), DNA('AC-')])
>>> bool(msa)
True

No sequences:

>>> msa = TabularMSA([])
>>> bool(msa)
False

No positions:

>>> msa = TabularMSA([DNA(''), DNA('')])
>>> bool(msa)
False