EDS 217 Cheatsheet

Conditional Statements

if-elif-else

x = 10
if x > 0:
    print("Positive")
elif x < 0:
    print("Negative")
else:
    print("Zero")

Positive

Loops

for loop

fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
    print(fruit)

apple
banana
cherry

while loop

count = 0
while count < 5:
    print(count)
    count += 1

0
1
2
3
4

Loop Control

break

for i in range(10):
    if i == 5:
        break
    print(i)

0
1
2
3
4

continue

for i in range(5):
    if i == 2:
        continue
    print(i)

0
1
3
4

Comprehensions

List Comprehension

squares = [x**2 for x in range(5)]
print(squares)

[0, 1, 4, 9, 16]

Dictionary Comprehension

squares_dict = {x: x**2 for x in range(5)}
print(squares_dict)

{0: 0, 1: 1, 2: 4, 3: 9, 4: 16}

Exception Handling

try-except

try:
    result = 10 / 0
except ZeroDivisionError:
    print("Cannot divide by zero")

Cannot divide by zero

try-except-else-finally

try:
    x = 5
    result = 10 / x
except ZeroDivisionError:
    print("Cannot divide by zero")
else:
    print(f"Result: {result}")
finally:
    print("Execution completed")

Result: 2.0
Execution completed

For more detailed information on Python control flows, refer to the Python documentation on Control Flow Tools.