How do I modify a string in python?

In Python, strings are immutable, which means that once a string is created, it cannot be altered. However, you can create a new string that is a variation of the original string. Here are some common ways to "modify" a string in Python:

1. Concatenation: You can concatenate strings using the + operator to combine them into a new string.

   python Copy

   original = "Hello"
   modified = original + " World"  # "Hello World"

2. Replacing Substrings: The replace() method creates a new string by replacing occurrences of a specified substring with a new substring.

   python Copy

   original = "Hello"
   modified = original.replace("e", "a")  # "Hallo"

3. String Slicing: You can create a new string by slicing the original string, which means extracting a part of the string.

   python Copy

   original = "Hello World"
   modified = original[:5]  # "Hello"

4. String Formatting: Python provides several methods to format strings, such as f-strings (formatted string literals) and the format() method.

   python Copy

   name = "Alice"
   age = 30
   modified = f"My name is {name} and I am {age} years old."  # "My name is Alice and I am 30 years old."

5. Using join(): To combine a list of strings into a single string, you can use the join() method.

   python Copy

   words = ["Hello", "World"]
   modified = " ".join(words)  # "Hello World"

6. Case Conversion: You can change the case of a string using methods like upper(), lower(), capitalize(), and title().

   python Copy

   original = "hello world"
   modified = original.capitalize()  # "Hello world"

7. Stripping Whitespace: The strip(), lstrip(), and rstrip() methods can be ...