Daily Software Tips & Tricks

When you are transforming data in Python, you might be tempted to write a four-line for-loop with an append call. Instead, try using a list comprehension. It is not just about saving lines; it is often more performant because it is optimized at the C level within the Python interpreter.

Just remember the golden rule of readability: if your comprehension is getting so long that it needs multiple lines or complex nested logic, it is probably time to go back to a standard loop. Code is read much more often than it is written, so keep it elegant but simple.