10 Python Shortcuts

Microsoft Designer

List Comprehensions

Instead of using loops to create lists, use list comprehensions for readable code.

numbers = [x for x in range(10)]

Dictionary Comprehensions

Similar to list comprehensions, you can create dictionaries in a compact way.

squares = {x: x*x for x in range(5)}

Multiple Assignment

Assign values to multiple variables in a single line.

a, b = 10, 20

Swapping Values

Swap the values between two variables without using a temporary variable.

a, b = b, a

Conditional Assignement

Use the ternary conditional expression for concise assignments based on conditions.

value = x if x > 0 else 0

String Formatting

Use f-strings for concise and readable string formatting.

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

Unpacking Iterables

Unpack elements from iterables like lists or tuples directly into variables.

numbers = [1, 2, 3]
a, b, c = numbers

Enumerate

Iterate over a sequence while keeping track of the index.

for index, value in enumerate(my_list):
    print(f"Index: {index}, Value: {value}")

Zip

Combine multiple sequences into pairs using zip.

names = ["Alice", "Bob", "Charlie"]
ages = [25, 30, 22]
for name, age in zip(names, ages):
    print(f"Name: {name}, Age: {age}")

Default Dictionary Values

Use collections.defaultdict to set default values for dictionary keys.

from collections import defaultdict
counts = defaultdict(int)
counts["apples"] += 1  # No need to check if key exists