numpy.finfo

> print(np.float)
<class 'float'>
> print(np.finfo(np.float))

Machine parameters for float64
---------------------------------------------------------------
precision =  15       
resolution = 1.0000000000000001e-15
machep =   -52      
eps =   2.2204460492503131e-16
negep =    -53        
epsneg =  1.1102230246251565e-16
minexp =  -1022    
tiny =   2.2250738585072014e-308
maxexp =   1024   
max =  1.7976931348623157e+308
nexp =  11              
min =  -max
---------------------------------------------------------------