Example Print "YES!" if the function returns True, otherwise print "NO!": defmyFunction() : returnTrue ifmyFunction(): print("YES!") else: print("NO!") Try it Yourself » Python also has many built-in functions that return a boolean value, like theisinstance()function, which can ...
In the given example, we are printing different values like integer, float, string, and Boolean using print() method in Python.# printing integer value print(12) # printing float value print(12.56) # printing string value print("Hello") # printing boolean value print(True) ...
Python Booleans (bool)In Python, bool is a sub-type of int type. A bool object has two possible values, and it is initialized with Python keywords, True and False.Example>>> a=True >>> b=False >>> type(a), type(b) (<class 'bool'>, <class 'bool'>) ...
Chained Conditional Statements: If you want to check multiple conditions in sequence, you can use multiple if, elif (else if), and else statements. In this way, we can make more complex decisions. Example: Using chained if-elif-else Code: x = -20 if x > 0: print("x is positive.")...
Any object can be tested for truth value, for use in an if or while condition or as operand of the Boolean operations below. The following values are considered false: None False zero of any numeric type, for example, 0, 0L, 0.0, 0j. ...
To define a Boolean array in NumPy, we use the np.array() function and pass in a list of Boolean values. For example: import numpy as np arr_bool = np.array([1, 1.1, 0, None, 'a', '', True, False], dtype=bool) print(arr_bool) ...
python中的真假值: Truth Value Testing Any object can be testedfortruth value,foruseinaniforwhileconditionoras operand of the Boolean operations below. The following values are considered false: 1.None 2.False 3.zero of any numeric type,forexample, 0, 0.0, 0j. ...
In this example, sincexhas the value of5, it is less thanywhich has the value of8. Using those two variables and their associated values, let’s go through the operators from the table above. In our program, we’ll ask Python to print out whether each comparison operator evaluates to ...
Example: 1D Boolean Indexing in NumPy importnumpyasnp# create an array of integersarray1 = np.array([1,2,4,9,11,16,18,22,26,31,33,47,51,52])# create a boolean mask using combined logical operatorsboolean_mask = (array1 <10) | (array1 >40)# apply the boolean mask to the arra...
For example, what if an expression like not "Hello" returned an empty string ("")? What would an expression like not "" return? That’s the reason why the not operator always returns True or False.Now that you know how not works in Python, you can dive into more specific use cases...