Return True if first argument is a typecode lower/equal in type hierarchy in Python

To return True if first argument is a typecode lower/equal in type hierarchy, use the numpy.issubdtype() method in Python Numpy. The parameters are the dtype or object coercible to one

Steps

At first, import the required library −

import numpy as np

Using the issubdtype() method in Numpy −

print("Result...",np.issubdtype(np.float64, np.float32))
print("Result...",np.issubdtype(np.float64, np.floating))
print("Result...",np.issubdtype(np.float32, np.floating))
print("Result...",np.issubdtype('i4', np.signedinteger))
print("Result...",np.issubdtype('i8', np.signedinteger))
print("Result...",np.issubdtype(np.int32, np.integer))

Example

import numpy as np

# To return True if first argument is a typecode lower/equal in type hierarchy, use the numpy.issubdtype() method in Python Numpy.

# The parameters are the dtype or object coercible to one
print("Using the issubdtype() method in Numpy\n")
print("Result...",np.issubdtype(np.float64, np.float32))
print("Result...",np.issubdtype(np.float64, np.floating))
print("Result...",np.issubdtype(np.float32, np.floating))
print("Result...",np.issubdtype('i4', np.signedinteger))
print("Result...",np.issubdtype('i8', np.signedinteger))
print("Result...",np.issubdtype(np.int32, np.integer))

Output

Using the issubdtype() method in Numpy

Result... False
Result... True
Result... True
Result... True
Result... True
Result... True