10 examples of 'python check if variable is number' in Python

54
def is_number(value):
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    return type(value) in _numeric_types

1022
def is_number(value):
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    """Checks if `value` is a number.
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    Args:
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        value (mixed): Value to check.
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    Returns:
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        bool: Whether `value` is a number.
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    Note:
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        Returns ``True`` for ``int``, ``long`` (PY2), ``float``, and
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        ``decimal.Decimal``.
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    Example:
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        >>> is_number(1)
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        True
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        >>> is_number(1.0)
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        True
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        >>> is_number('a')
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        False
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    .. versionadded:: 1.0.0
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    .. versionchanged:: 3.0.0
1047
        Added ``is_num`` as alias.
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    .. versionchanged:: 4.0.0
1050
        Removed alias ``is_num``.
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    """
1052
    return not is_boolean(value) and isinstance(value, number_types)

266
def is_number(val):
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    return isinstance(val, (int, float))

39
def is_number(*p):
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    ''' Returns True if ALL of the arguments are AST nodes
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    containing NUMBER constants
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    '''
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    try:
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        for i in p:
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            if i.token != 'NUMBER' and (i.token != 'ID' or
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                                        i.class_ != 'const'):
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                return False
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        return True
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    except:
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        pass
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    return False

150
def is_number(value):
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    return _get_safe_value_or_none(value, (int, float)) is not None

47
def is_number(value):
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    return (not isinstance(value, str)) and np.isscalar(value)

51
def is_number(x):
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  if isinstance(x, tf.Tensor):
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    return True
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  try:
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    float(x)
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    return True
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  except:
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    return False

22
def is_number(self):
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    return self._operation_type == Operations._number

6
def isnum(val):
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    """Check if a value is a number"""
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    # Todo: is there a better way to check this?
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    return isinstance(val, int) or isinstance(val, float) or isinstance(val, long)

359
def isnum(o):
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    return isinstance(o, (int, float))