How Do I Efficiently Write to Files in Modern Python?

Writing to Files in Modern Python

In Python, writing to a file is simplified with the use of the open() function and with statement. To append a line to a file, use the following code:

with open('somefile.txt', 'a') as the_file:
    the_file.write('Hello\n')

Handling Line Terminators

Python uses a single 'n' newline character on all platforms when writing files in text mode (the default). The documentation explicitly states that os.linesep should not be used for this purpose.

Why Avoid print >>f, "hi there"?

The ">>" syntax is deprecated and not recommended. Using this method can lead to confusion and potential compatibility issues. It is better to use the open() and write() functions for file handling.

Further Reading

For additional information, refer to the following resources:

• [The with statement](https://docs.python.org/3/reference/compound_stmts.html#the-with-statement)
• [The open() function](https://docs.python.org/3/library/functions.html#open)
• [os](https://docs.python.org/3/library/os.html)

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