String Formatting by Format Method

String formatting 

by format() Method:

- Sometimes selected part of a string is not in control then we use the format() method to control it.

- In string, add placeholders (in curly brackets {}) to run values through the format() method.

Single value:

- For a single value add one placeholder in the string.

Below code explanation:

- We take two variables. (money and str) 

- We call the format() method with the str variable and to get the value of money place the money variable in the format() method in the print() function.

- Syntax: variable1 = Any Value

               variable2 = "I have {} rupees"

               print(variable2.format(variable1))

Multiple values:

- For multiple values add more placeholders in the string.

Below code explanation:

- We take four variables. (name, course, year, and str) 

- We call the format() method with the str variable and to get the value of all variables place all variables in the format() method (septate with a comma) in the print() function.

- Syntax: variable1 = Any Value

               variable2 = Any Value

               variable3 = Any Value

               variable4 = "hi {}, hi{}, hi {}"

               print(variable2.format(variable1, variable2, variable3))

Index numbers:

- In index numbers (a number in curly brackets {}) are placed the values in the right placeholders.

Below code explanation:

- We take four variables. (name, course, year, and str)

- Variable name in {0} placeholder, course in {1} and age in {2} placeholder. 

- We call the format() method with the str variable and to get the value of all variables place all variables in the format() method (septate with a comma) in the print() function.

- Syntax: variable1 = Any Value

               variable2 = Any Value

               variable3 = Any Value

               variable4 = "hi {}, hi{}, hi {}"

               print(variable2.format(variable1, variable2, variable3))

Named indexes:

- In named indexes enter the objects name (in curly brackets {}) to get their values.

Below code explanation:

- We take two objects. (name, age)

- We call the format() method with the self variable and create two object in format() method (septate with a comma) in the print() function.

- Add object's name (in curly brackets {}) in the string of self variable to get their values.

- Syntax: self = "my name is {object1}, i'm {object2} years old"

               print(self.format(object1 = Any Value, object2 = Any Value))

Return a Number with Two Decimals:

- If we have user data with more than 2 decimals but we don’t need all decimals then we need to use this format.

- This format is used to get a number with two decimals.

Below code explanation:

- We take two variables. (name and str) 

- We call the format() method with the str variable and to get the value of dollar variables place dollar variables in the format() method in the print() function.

- Format: {:.2f} for two decimal.

- Above format used (in curly bracket {}) in the string of str variable.

- Syntax: variable1 = Any Value

               variable2 = "{:.2f} dollars"

               print(variable2.format(variable1))

Output: