How can you read a text file line by line in Python and process each line separately?

Developers Group
2 min readAug 6, 2023

In Python, you can read a text file line by line using a simple loop and process each line separately. The most common way to achieve this is by using the open() function to open the file, and then using a for loop to iterate over the lines.

Here's a step-by-step guide:

  1. First, you need to open the text file using the open() function. You can specify the file path and mode (read, write, append, etc.). For reading, use the mode 'r'.
  2. Use a for loop to iterate over the file object. This will automatically read the file line by line.
  3. Inside the loop, you can process each line as needed, such as printing it, performing some calculations, or storing it in a list, etc.
  4. Finally, don’t forget to close the file using the close() method to release the resources.

Here’s an example demonstrating how to read a text file line by line and process each line separately:

file_path = 'path/to/your/textfile.txt'

try:
with open(file_path, 'r') as file:
for line in file:
# Process each line separately, for example, printing it:
print(line.strip()) # .strip() removes the newline character at the end of each line

except…

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