How Can I Redirect Python's Standard Output to a File?

Redirecting Standard Output to a File Naturally

In Python, one can effortlessly redirect the standard output (stdout) to a specified file. This technique is often useful when working with long-running Python scripts, such as web applications, that are invoked via the SSH session but encounter issues with IOError when attempting to write to stdout.

To address this, Python provides a straightforward method of redirecting output to a file. One approach is to modify sys.stdout to reference a file object, effectively redirecting output to the designated file:

import sys
with open('file', 'w') as sys.stdout:
    print('test')

This approach ensures that all output from the Python script, including that generated by external modules, is redirected to the specified file, preventing IOError exceptions.

Another commonly used method is leveraging shell redirection upon script execution, a technique compatible with both Windows and Linux environments:

$ python3 foo.py > file

This shell redirection command directs all output from the Python script into the specified file, bypassing the default behavior of outputting to the terminal.

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