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# author : S. Mandalia
# shivesh.mandalia@outlook.com
#
# date : March 19, 2020
"""
Miscellaneous utility methods.
"""
__all__ = ['is_num', 'is_pos']
def is_num(val: (int, float)) -> bool:
"""
Check if the input value is a non-infinite number.
Parameters
----------
val : Value to check.
Returns
----------
is_num : Whether it is a non-infinite number.
Examples
----------
>>> from utils.misc import is_num
>>> print(is_num(10))
True
>>> print(is_num(None))
False
"""
if not isinstance(val, (int, float)):
return False
return True
def is_pos(val: (int, float)) -> bool:
"""
Check if the input value is a non-infinite positive number.
Parameters
----------
val : Value to check.
Returns
----------
is_pos : Whether it is a non-infinite positive number.
Examples
----------
>>> from utils.misc import is_pos
>>> print(is_pos(10))
True
>>> print(is_pos(-10))
False
"""
if not is_num(val):
return False
if not val >= 0:
return False
return True
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