file parameter of Python’s print() Function
print() function in Python3 supports a ‘file‘ argument, which specifies where the function should write a given object(s) to. If not specified explicitly, it is sys.stdout by default.
It serves two essential purposes:
Print to STDERR Print to external file
Note : The ‘file’ parameter is found only in Python 3.x or later.
Printing to STDERR :
Specify the file parameter as sys.stderr instead of the default value. This is very useful when debugging a small program (It would be better to use a debugger in other cases).
Printing to a specific file :
Instead of the default value, specify the file parameter with the name of the required file. If the file does not exist, a new file by that name is created and written to.
Output (in “samplefile.txt”) :
Note : Try this in interpreter on your system, since such file can’t be accessed on Online IDE.