# 19.7. `binhex` — Encode and decode binhex4 files

Source code: Lib/binhex.py

This module encodes and decodes files in binhex4 format, a format allowing representation of Macintosh files in ASCII. Only the data fork is handled.

The `binhex` module defines the following functions:

`binhex.``binhex`(input, output)

  Convert a binary file with filename input to binhex file output. The output parameter can either be a filename or a file-like object (any object supporting a `write()` and `close()` method).

`binhex.``hexbin`(input, output)

  Decode a binhex file input. input may be a filename or a file-like object supporting `read()` and `close()` methods. The resulting file is written to a file named output, unless the argument is `None` in which case the output filename is read from the binhex file.

The following exception is also defined:

exception `binhex.``Error`

  Exception raised when something can’t be encoded using the binhex format (for example, a filename is too long to fit in the filename field), or when input is not properly encoded binhex data.

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Module `binascii`

  Support module containing ASCII-to-binary and binary-to-ASCII conversions.

## 19.7.1. Notes

There is an alternative, more powerful interface to the coder and decoder, see the source for details.

If you code or decode textfiles on non-Macintosh platforms they will still use the old Macintosh newline convention (carriage-return as end of line).