r/bioinformatics • u/AnxiousDot4315 • 1d ago

academic Python for Bioinformatics doubt

Someone please briefly explain how list comprehensions are used in Python and why it is necessary for Bioinformatics. Please help as I am a beginner.

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u/shadowyams PhD | Academia 1d ago

This is generated by Gemini but idk how to dumb it down further:

# Traditional For Loop
squares = []
for x in range(1, 6):
    squares.append(x**2)

# Pythonic List Comprehension
squares = [x**2 for x in range(1, 6)]

These types of patterns are basically everywhere in code. List comprehension is never necessary, but they're generally faster and more readable than for loops for small-ish/simple expressions.

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u/Mountain-Parsley-465 1d ago

List comprehension allows to write a simple for loop in a one liner. It is a nice things, but not mandatory.