# 2. str.lower():
my_string = "Hello, World!"
lowercase_string = my_string.lower()
print(lowercase_string)

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# 3. str.upper():
my_string = "Hello, World!"
uppercase_string = my_string.upper()
print(uppercase_string) 

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# 4. str.capitalize():
my_string = "hello, world!"
capitalized_string = my_string.capitalize()
print(capitalized_string)
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# 5. str.title():
my_string = "hello, world!"
title_case_string = my_string.title()
print(title_case_string)

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# 6. str.strip():
my_string = " Hello, World! "
stripped_string = my_string.strip()
print(stripped_string)
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Comment here if any question 👇

# 7. str.startswith(prefix):
my_string = "Hello, World!"
starts_with_hello = my_string.startswith("Hello")
print(starts_with_hello)
# @python_codes_pro

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I hope you like it

# 8. str.endswith(suffix):
my_string = "Hello, World!"
ends_with_world = my_string.endswith("World!")
print(ends_with_world)
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# 9. str.format(*args, **kwargs):
name = "Alice"
age = 25
formatted_string = "My name is {} and I'm {} years old.".format(name, age)
print(formatted_string)
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# 10. str.replace(old, new):
my_string = "Hello, World!"
new_string = my_string.replace("Hello", "Hi")
print(new_string)
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# 11. str.split(sep=" "):
my_string = "Hello, World!"
words = my_string.split()
print(words)
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# 12. str.join(iterable):
words = ['Hello', 'World']
my_string = ' '.join(words)
print(my_string)
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# 14. str.isalpha():
alphabetic_string = "Hello"
is_alpha = alphabetic_string.isalpha()
print(is_alpha)
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# 15. str.isnumeric():
numeric_string = "12345"
is_numeric = numeric_string.isnumeric()
print(is_numeric)
# @python_codes_pro

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I hope you like it

Run any codes in group
@BCA_MCA_BTECH

# Triangle pattern 🔺️
n = 6
for i in range(n):
        print(" " * (n - 1 - i), end="")
        print("* " * (i + 1))

# @python_codes_pro

# Triangle : -
rows = 7

for i in range(1, rows + 1):
    for j in range(1, i + 1):
        print("*", end=" ")
    print()

for i in range(rows - 1, 0, -1):
    for j in range(1, i + 1):
        print("*", end=" ")
    print()

# @python_codes_pro

20 Questions on python loops:

1. What is a loop in Python?
2. What are the different types of loops in Python?
3. How do you create a for loop in Python?
4. How do you create a while loop in Python?
5. What is the range() function used for in a for loop?
6. How do you access the current iteration number in a for loop?
7. How do you exit a loop early in Python?
8. How do you skip an iteration in a loop?
9. How do you loop over a list in Python?
10. How do you loop over a dictionary in Python?
11. How do you loop over a tuple in Python?
12. How do you loop over a string in Python?
13. How do you loop over a set in Python?
14. How do you loop over a file in Python?
15. How do you loop over multiple lists in Python?
16. How do you loop over the index and value of a list in Python?
17. How do you create an infinite loop in Python?
18. How do you break out of nested loops in Python?
19. How do you use the continue statement in a loop?
20. How do you use the else statement in a loop?

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