mminfo(source)
Matrix Market filename (extension .mtx) or open file-like object
Number of matrix rows.
Number of matrix columns.
Number of non-zero entries of a sparse matrix or rows*cols for a dense matrix.
Either 'coordinate' or 'array'.
Either 'real', 'complex', 'pattern', or 'integer'.
Either 'general', 'symmetric', 'skew-symmetric', or 'hermitian'.
Return size and storage parameters from Matrix Market file-like 'source'.
from io import StringIO
from scipy.io import mminfo
text = '''%%MatrixMarket matrix coordinate real general
5 5 7
2 3 1.0
3 4 2.0
3 5 3.0
4 1 4.0
4 2 5.0
4 3 6.0
4 4 7.0
'''
mminfo(StringIO(text))
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