{
    "info": {
        "author": "herr kaste",
        "author_email": "herr.kaste@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 3 - Alpha",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: BSD License",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "Topic :: Internet :: WWW/HTTP",
            "Topic :: Software Development :: Libraries"
        ],
        "description": "Pseudo-hacky sugar around generators. If you write nested for loops or nested functions ``a(b(c([1,2,3])))`` this might help you. \n\n\nBasically it looks like this::\n\n\t[1, 2, 3] | add(2) | list == [3, 4, 5]\n\nwhere\n\n::\n\t\n\t@worker\n\tdef add(items, n):\n\t\tfor i in items:\n\t\t\tyield i + n\n\nThe leftmost argument always is the iterator coming from the left side. The other arguments represent a bound state. Using this worker is a two-step process.\n\n:: \n\n\tadder = add(2)                # bind a state in a closure\n\tadder([1, 2, 3]) == [3, 4, 5] # apply an iterator\n\nworkers tend to be very simple and short, reusable and easy to test.\n\n::\n\n\t@worker\n\tdef echo(items):\n\t\tfor i in items: yield i\n\techo = echo()   # echo 'has' no state\n\tassert [1, 2, 3] | echo == [1, 2, 3]\n\n\n\n\nSometimes you can achieve something like this::\n\n\n\tfilter_audio_files = fs.filter_by_ext(['.mp3'])\n\n\t@producer\n\tdef folders_with_audio_files(path):\n\t    for root, folders, filenames in os.walk(path):\n\t        if any(filenames | filter_audio_files):\n\t            yield root\n\n\n\t@worker\n\tdef that_need_fix(paths):\n\t\tfor path in paths:\n\t\t\tfiles     = listdir(path) | filter_audio_files | join_path(path) | list\n\t\t\tdos_names = files | get_83DOS_name | list\n\n\t\t\tif files.sort() != dos_names.sort():\n\t\t\t\tyield path\n\tthat_need_fix = that_need_fix()\n\n\n\t# and the outermost commands in a script then look like this\n\n\t#give me all folders with mp3-files inside, e.g. print them to stdout\n\tfolders_with_audio_files(root)\n\t#give me all folder that need a specific fix, aka dry-mode\n\tfolders_with_audio_files(root) | that_need_fix \n\t#actually apply a fix to these folders\n\tfolders_with_audio_files(root) | that_need_fix | apply_fix",
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        "name": "useless.pipes",
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