How To Python Read Txt File And Store Data In A List?

I’m practicing some Python file handling for a personal project and need to pull lines from a text file into a list, but my code feels clunky. Any cleaner ways to load text data efficiently?
2025-07-07 17:10:05
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6 Answers

Best Answer
AnnaBrown
AnnaBrown
Ending Guesser Driver
For that, you'd use something like . It loads each line into a list. If you want to strip newline characters, use a list comprehension: . Totally unrelated, but I often use simple scripting tasks like that to automate organizing my downloaded ebook collections, which is how I stumbled on 'CARNAL TEMPTATIONS-A collection of 50 steamy stories'—it's a set of standalone short stories, so you can easily read one during a quick coding break without committing to a long plot.
2026-08-04 18:25:29
49
Caleb
Caleb
Detail Spotter Chef
Working with files in Python is one of those foundational skills that’s incredibly versatile. To read a .txt file and store its contents in a list, you can approach it in several ways depending on your needs. The most common method is using a context manager (`with` statement) to ensure the file closes properly after reading. Here’s a detailed example:

`with open('data.txt', 'r', encoding='utf-8') as f:
lines = f.readlines()
cleaned_lines = [line.strip() for line in lines]`

This reads all lines into `lines`, then strips whitespace and newline characters into `cleaned_lines`. If you’re dealing with large files, `readlines()` might consume too much memory. Instead, iterate directly over the file object:

`data = []
with open('large_file.txt', 'r') as file:
for line in file:
data.append(line.strip())`

This method is memory-efficient and scales well. For advanced use cases, like filtering specific lines or processing data on the fly, you can add conditions inside the loop. Python’s flexibility makes it easy to adapt to different file formats or data structures.
2025-07-08 02:10:22
13
Isaac
Isaac
Sharp Observer Editor
I remember when I first started coding in Python, I was super excited to work with files. Reading a .txt file and storing its data in a list is actually pretty straightforward. You can use the `open()` function to open the file, then loop through each line and append it to a list. Here's a simple way to do it:

`with open('yourfile.txt', 'r') as file:
data_list = [line.strip() for line in file]`

This code opens 'yourfile.txt' in read mode, strips any extra whitespace or newline characters from each line, and stores the cleaned lines in `data_list`. It's efficient and clean, perfect for beginners. If your file is huge, you might want to read it line by line instead of loading everything at once, but for most cases, this works like a charm.
2025-07-10 04:31:15
13
Yara
Yara
Ending Guesser Receptionist
I love how Python makes file handling feel almost magical. If you need to read a .txt file and dump its content into a list, here’s my go-to method. The `open()` function is your best friend, and list comprehensions keep things tidy. For example:

`file_path = 'notes.txt'
data = [line.rstrip('
') for line in open(file_path, 'r')]`

This snippet opens 'notes.txt', iterates through each line, and removes the trailing newline character before adding it to the list `data`. It’s concise and Pythonic. If you’re paranoid about resource leaks (like me), wrap it in a `with` block:

`with open('notes.txt', 'r') as f:
data = [line.rstrip() for line in f]`

Bonus tip: If your file has blank lines or comments you want to skip, add a filter like `if line.strip()` inside the comprehension. Python’s simplicity lets you tweak this effortlessly for different scenarios.
2025-07-11 20:26:31
26
RoryBurns
RoryBurns
Detail Spotter Doctor
Don't forget about context managers! They're not just fancy syntax—they prevent file lock issues. The pattern is the most Pythonic. After the block, the file is guaranteed closed, even if an error occurs. The list will have each line as a string, preserving newlines. If you don't want the newlines, chain in a comprehension inside the block.

It's such a fundamental idiom that it's worth memorizing. The alternative of manually opening and closing with is more verbose and error-prone. For beginners, mastering the pattern is one of the first big steps toward writing robust scripts. Everything else—splitting, parsing, data conversion—builds on this foundation.
2026-08-03 03:28:14
20
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