Part 8: String Methods in Python (Beginner Friendly Explanation)

Описание: Python gives us many built-in methods to work with strings (change case, find text, replace text, etc.).

✅ 1. upper()

Converts all characters to UPPERCASE.

name = "JP Morgen"
print(name.upper()) # JP Morgen

✅ 2. lower()

Converts all characters to lowercase.

city = "MUMBAI"
print(city.lower()) # mumbai

✅ 3. title()

Converts the first letter of every word to capital.

text = "welcome to python"
print(text.title()) # Welcome To Python

✅ 4. strip()

Removes extra spaces from start and end.

msg = " hello "
print(msg.strip()) # "hello"

✅ 5. replace(old, new)

Replaces a part of the string with something else.

data = "I love Java"
print(data.replace("Java", "Python"))
I love Python

✅ 6. split()

Breaks a string into a list (using spaces or given separator).

line = "apple,banana,orange"
print(line.split(","))
['apple', 'banana', 'orange']

✅ 7. find()

Returns the index number where a substring is found.

text = "hello world"
print(text.find("world")) # 6

✅ 8. len() (not a method, but useful)

Returns length of the string.

msg = "python"
print(len(msg)) # 6

🎯 Summary

String methods help you:

Change text case

Remove spaces

Find or replace text

Break strings into parts

Measure length