With the help of fileinput.input() method, we can get the file as input and can be used to update and append the data in the file by usingfileinput.input() method.
Python fileinput.input() Syntax
Syntax :fileinput.input(files)
Parameter :
fileinput module in Python hasinput() for reading from multiple files.input() infileinput reads input from various sources.files parameter specifies file names, defaulting to stdin if not specified.
Return : Return the data of the file.
What is fileinput.input() in Python?
`fileinput.input()` inPython is a function provided by the `fileinput` module. It allows reading input from multiple files. The function returns an iterable, and the optional `files` parameter specifies the files to read from; if not provided, it defaults to reading from standard input (stdin). Each iteration of the iterable corresponds to a line from the specified files.
Python fileinput.input() Examples
There are various methods to open a file by user input inPython here, we are discussing some general use cases of opening a file by user input in Python which are the following.
Reading From a Single File
Input File
In this example we can see that by usingfileinput.input()method, we are able to get the data of the file line by line by using this method.
Python3importfileinputfilename='example.txt'forlineinfileinput.input(files=filename):print(line,end='')
Output :
Reading From Multiple Files
Input Files
In this example code utilizes thefileinput module in Python to read input from the specified files, 'gfg.txt' and 'gfg1.txt'. Thefileinput.input() method returns an iterable, and the loop iterates over each line from the files, printing them to the console
Python3# import fileinputimportfileinput# Using fileinput.input() methodforlineinfileinput.input(files=('gfg.txt','gfg1.txt')):print(line)Output
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