Use the .readline() method: first_line = f.readline() Note that unless it is the only line in the file, the string returned from f.readline() will contain a trailing newline. You may wish to use. first_line = …

If you want to read the first lines quickly and you don't care about performance you can use .readlines() which returns list object and then slice the list. E.g. for the first 5 lines: …

Mar 30, 2017 · def read_first_lines(filename, limit): result = [] with open(filename, 'r') as input_file: # files are iterable, you can have a for-loop over a file. for line_number, line in …

Feb 14, 2025 · Learn how to read the first line of a file in Python using `readline()`, `readlines()[0]`, and `next()`.Access and process file content with simple methods.

Feb 2, 2024 · file.readline() is used to read the first line of the file. strip() is used to remove any leading or trailing whitespace, including newline characters. The first line is then printed to the …

Apr 21, 2025 · Output: This is the first line. This is the second line. This is the third line. This is the fourth line. Explanation: The while True: loop keeps reading lines until the end of the file is …

To be able to read the first line of a file, you follow these steps: Step 1: You make use of the open () function to open the file in read mode. Step 2: You then assign the returned file object to a …

The readline() method returns one line from the file. You can also specified how many bytes from the line to return, by using the size parameter.

Feb 28, 2024 · For instance, you may want to preview the first 5 lines of a CSV file to understand its structure without loading the entire file. Here, we’ll discuss and demonstrate how to achieve …

Aug 18, 2022 · Enter the N value static/dynamic for printing the first N lines of a file. Use the open () function (opens a file and returns a file object as a result) to open the text file in read-only …