Copy upper triangle to lower triangle in a python matrix -

       iluropoda_melanoleuca  bos_taurus  callithrix_jacchus  canis_familiaris ailuropoda_melanoleuca     0        84.6                97.4                44 bos_taurus                 0           0                97.4              84.6 callithrix_jacchus         0           0                   0              97.4 canis_familiaris           0           0                   0                 0 

this short version of python matrix have. have information in upper triangle. there easy function copy upper triangle down triangle of matrix?

if understand question correctly, believe work

for in range(num_rows):     j in range(i, num_cols):         matrix[j][i] = matrix[i][j]