When working with strings in Python, there may be times when you need to add double quotes to a string. This can be useful in various scenarios, such as when you want to format a string to be used as a command or when you need to enclose a string within quotes for a specific requirement.

Option 1: Using string concatenation

One way to add double quotes to a string in Python is by using string concatenation. You can concatenate the double quotes with the string using the plus operator (+).

string = "Hello"
quoted_string = '"' + string + '"'
print(quoted_string)

In this example, the variable string contains the original string “Hello”. By concatenating the double quotes with the string using the plus operator, we create a new string quoted_string that contains the original string enclosed within double quotes. The output of this code will be:

"Hello"

Option 2: Using string interpolation

Another way to add double quotes to a string in Python is by using string interpolation. You can use the %s placeholder to insert the original string into a template string that includes the double quotes.

string = "Hello"
quoted_string = '"%s"' % string
print(quoted_string)

In this example, the %s placeholder is used to insert the original string into the template string '"%s"'. The output of this code will be the same as the previous example:

"Hello"

Option 3: Using f-strings

A more modern way to add double quotes to a string in Python is by using f-strings. F-strings provide a concise and readable way to format strings by embedding expressions inside curly braces.

string = "Hello"
quoted_string = f'"{string}"'
print(quoted_string)

In this example, the original string is enclosed within double quotes using the f-string f'"{string}"'. The output of this code will also be:

"Hello"

Among these three options, using f-strings (Option 3) is generally considered the best approach. F-strings are more readable and provide a concise syntax for string formatting. They were introduced in Python 3.6 and have become the preferred way to format strings in Python.

However, the choice of which option to use ultimately depends on the specific requirements of your code and the version of Python you are using. If you are working with an older version of Python that does not support f-strings, options 1 and 2 are still valid alternatives.