What Are the Features of the sys.stdin.read() Method for Input in Python?

Question

Khushi Singh · Answer

The read method from the sys.stdin module in 
Python allows reading continuous input streams coming from standard input (stdin). The
sys.stdin.read() function is suitable for three standard input situations: command-line redirection and piping, and bulk user input. The
sys.stdin.read() method surpasses input() because it gathers the full input stream until it detects an EOF (End of File) termination signal.
The main functionality of sys.stdin.read() is to read together in a single string that contains all newlines and spaces. Users can use this function to obtain multi-line inputs together with large chunks of data through a single command. The user can determine the number of bytes to read through an argument that enables reading only selected byte ranges. The program can handle big files or steady data streams because of this functionality.
Input() performs more slowly when processing big inputs compared to the repeated use of the input function. A negative aspect of the read function is that program execution gets delayed until EOF is received, thus making it unsuitable for interactive sequences.
Example
import sys
# Reading input until EOF (Ctrl+D in Unix, Ctrl+Z in Windows)
data = sys.stdin.read()
print("Received input:")
print(data)
This approach is frequently used in competitive programming as well as script automation, together with any case that requires input file transfer between programs.
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What Are the Features of the sys.stdin.read() Method for Input in Python?

Ashutosh Kumar Verma

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