# How to Read a File Line-by-Line into a List?

You can read a file line-by-line into a list in Python using a loop to iterate over each line in the file and appending each line to a list. Here's how you can do it:

```python
# Open the file for reading
with open('filename.txt', 'r') as file:
    # Read lines from the file and store them in a list
    lines = file.readlines()

# Print the list of lines
print(lines)

```

In this code:

- `'filename.txt'` is the name of the file you want to read. Replace it with the actual filename.
- `'r'` specifies that the file should be opened in read mode.
- `file.readlines()` reads all lines from the file and returns them as a list of strings, where each string represents one line of the file.
- The list of lines is stored in the variable `lines`.

Now, the variable `lines` contains a list where each element corresponds to a line from the file.

If you want to remove the newline characters (`'\\n'`) from each line, you can use the `rstrip()` method within a list comprehension like this:

```python
# Open the file for reading
with open('filename.txt', 'r') as file:
    # Read lines from the file, remove trailing newline characters, and store them in a list
    lines = [line.rstrip('\\n') for line in file]

# Print the list of lines
print(lines)

```

This will give you a list where each line is stripped of any trailing newline characters.