DevOps Classroom Notes 06-Oct-2025

Blocks in python

• In python we will have block for
  • if
  • for
  • while
  • class
  • def
• Block will have an indentation

block1 :
    a......
    b......
c...
block2:
    d......
    e......

Conditionals in python

• Refer Here for if
• even or odd

n = 50
if n%2 == 0:
    print("even")
else:
    print("odd")

• Grades

Marks	Grade	Grade Point
91–100	A1	10.0
81–90	A2	9.0
71–80	B1	8.0
61–70	B2	7.0
51–60	C1	6.0
41–50	C2	5.0
33–40	D	4.0
21–32	E1	Fail
0–20	E2	Fail

• Solution

if 90 < marks <= 100:
    print("A1")
elif 80 < marks <= 90:
    print("A2")
elif 70 < marks <= 80:
    print("B1")
elif 60 < marks <= 70:
    print("B2")
elif 50 < marks <= 60:
    print("C1")
elif 40 < marks <= 50:
    print("C2")
elif 32 < marks <= 40:
    print("D")
elif 21 < marks <= 32:
    print("E1")
elif 0 <= marks <= 20:
    print("E2")

• Tax Slab Rate

Taxable Income (₹)	Tax Rate
Up to ₹ 4,00,000	0%
₹ 4,00,001 – ₹ 8,00,000	5%
₹ 8,00,001 – ₹ 12,00,000	10%
₹ 12,00,001 – ₹ 16,00,000	15%
₹ 16,00,001 – ₹ 20,00,000	20%
₹ 20,00,001 – ₹ 24,00,000	25%
Above ₹ 24,00,000	30%

• Code

salary_in_lakhs = 76
if 0 <= salary_in_lakhs <= 4:
    print("0%")
elif 4 < salary_in_lakhs <= 8:
    print("5%")
elif 8 < salary_in_lakhs <= 12:
    print("10%")
elif 12 < salary_in_lakhs <= 16:
    print("15%")
elif 16 < salary_in_lakhs <= 20:
    print("20%")
elif 20 < salary_in_lakhs <= 24:
    print("25%")
elif salary_in_lakhs > 24 :
    print("30%")
else:
    print("invalid value")

Debugging in python

• Create a new folder
• open visual studio code in this

mkdir <somefolder>
cd <somefolder>
code .

• Create a new file called main.py
• Copy the code

# Number of terms to display
n_terms = 10

# First two terms
a, b = 0, 1

print("Fibonacci Series:")
for _ in range(n_terms):
    print(a, end=" ")
    a, b = b, a + b

• Ensure you are able to debug by adding breakpoints.