python file stdin line 1

Title: Python File Input Using stdin and Handling Line 1
Introduction:
In Python, the stdin (standard input) is a convenient way to read input from the command line or other sources. This tutorial will focus on reading input from a file using stdin and specifically handling the first line differently from the rest. This can be useful in scenarios where the first line contains metadata or special instructions.
Code Example:
Let's create a simple Python script that reads input from stdin and handles the first line differently from subsequent lines. For this example, we'll create a script that calculates the sum of numbers in a file, where the first line indicates the number of values to sum.
Explanation:
Usage:
To use this script, you can create a text file with the following format:
This will output:
Feel free to adapt this example to suit your specific needs.
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