The str() function is a built-in Python function that converts an object to its string representation. It returns a string version of the object passed to it as an argument.
The syntax for using the str() function is as follows:
str(object='')
where object is an optional object that you want to convert to a string. If object is not provided, an empty string is returned.
Here are some examples of using the str() function:
>>> str(123)
'123'
>>> str('hello')
'hello'
>>> str([1, 2, 3])
'[1, 2, 3]'
In the first example, the str() function is used to convert the integer 123 to its string representation '123'. In the second example, the str() function is used to convert the string 'hello' to itself. In the third example, the str() function is used to convert the list [1, 2, 3] to its string representation '[1, 2, 3]'.
You can also use the str() function to format strings using placeholders.
For example:
>>> name = 'Alice'
>>> age = 25
>>> message = 'My name is {} and I am {} years old.'.format(name, age)
>>> message
'My name is Alice and I am 25 years old.'
In this example, we define two variables name and age. We then use the str() function to format a string using placeholders. The format() method is called on a string and takes the variables as arguments. The resulting string is stored in the variable message. The output is 'My name is Alice and I am 25 years old.'.
