Metadata-Version: 1.1
Name: tubing
Version: 0.0.2.post172
Summary: Python I/O pipe utilities
Home-page: http://github.com/dokipen/tubing
Author: Bob Corsaro
Author-email: rcorsaro@gmail.com
License: MIT
Description: .. image:: https://imgur.com/Q9Lv0xo.png
           :target: https://github.com/dokipen/tubing
        
        ======
        
        .. image:: https://travis-ci.org/dokipen/tubing.svg?branch=master
           :target: https://travis-ci.org/dokipen/tubing/
        .. image:: https://coveralls.io/repos/github/dokipen/tubing/badge.svg?branch=master
           :target: https://coveralls.io/github/dokipen/tubing?branch=master
        .. image:: https://img.shields.io/pypi/v/tubing.svg
           :target: https://pypi.python.org/pypi/tubing/
        .. image:: https://img.shields.io/pypi/pyversions/tubing.svg
           :target: https://pypi.python.org/pypi/tubing/
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           :target: https://pypi.python.org/pypi/tubing/
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           :target: https://pypi.python.org/pypi/tubing/
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           :target: https://pypi.python.org/pypi/tubing/
        .. image:: https://readthedocs.org/projects/tubing/badge/?version=latest
           :target: http://tubing.readthedocs.org/en/latest
        .. image:: https://landscape.io/github/dokipen/tubing/master/landscape.svg?style=flat
           :target: https://landscape.io/github/dokipen/tubing/master
           :alt: Code Health
        
        Tubing is a Python I/O library.  What makes tubing so freakin' cool is the
        gross abuse of the bit-wise OR operator (|). Have you ever been writing python
        code and thought to yourself, "Man, this is great, but I really wish it was a
        little more like bash." Whelp, we've made python a little more like bash.If you
        are a super lame nerd-kid, you can replace any of the bit-wise ORs with the
        tube() function and pray we don't overload any other operators in future
        versions. Here's how you install tubing::
        
            $ pip install tubing
        
        Tubing is pretty bare-bones at the moment. We've tried to make it easy to add
        your own functionality. Hopefully you find it not all that unpleasant. There
        are three sections below for adding sources, tubes and sink. If you do make
        some additions, think about committing them back upstream. We'd love to have
        a full suite of tools.
        
        Now, witness the power of this fully operational I/O library.
        
        .. code-block:: python
        
            from tubing import sources, tubes, sinks
        
            objs = [
                dict(
                    name="Bob Corsaro",
                    birthdate="08/03/1977",
                    alignment="evil",
                ),
                dict(
                    name="Tom Brady",
                    birthdate="08/03/1977",
                    alignment="good",
                ),
            ]
            sources.Objects(objs) \
                 | tubes.JSONDumps() \
                 | tubes.Joined(by=b"\n") \
                 | tubes.Gzip() \
                 | sinks.File("output.gz", "wb")
        
        Then in our old friend bash.
        
        .. code-block:: bash
        
            $ zcat output.gz
            {"alignment": "evil", "birthdate": "08/03/1977", "name": "Bob Corsaro"}
            {"alignment": "good", "birthdate": "08/03/1977", "name": "Tom Brady"}
            $
        
        You can find more documentation on `readthedocs <https://tubing.readthedocs.org/>`_
        
        Catalog
        -------
        
        Sources
        ~~~~~~~
        
        +---------+-----------------------------------------------------+
        |`Objects`|Takes a `list` of python objects.                    |
        +---------+-----------------------------------------------------+
        |`File`   |Creates a stream from a file.                        |
        +---------+-----------------------------------------------------+
        |`Bytes`  |Takes a byte string.                                 |
        +---------+-----------------------------------------------------+
        |`IO`     |Takes an object with a read function.                |
        +---------+-----------------------------------------------------+
        |`Socket` |Takes an addr, port and socket() args.              .|
        +---------+-----------------------------------------------------+
        |`HTTP`   |Takes an method, url and any args that can be passed |
        |         |to requests library.                                 |
        +---------+-----------------------------------------------------+
        
        Tubes
        ~~~~~
        
        +----------------+-----------------------------------------------------+
        |`Gunzip`        |Unzips a binary stream.                              |
        +----------------+-----------------------------------------------------+
        |`Gzip`          |Zips a binary stream.                                |
        +----------------+-----------------------------------------------------+
        |`JSONLoads`     |Parses a byte string stream of raw JSON objects. Will|
        |                |try to use ujson, then built-in json.                |
        +----------------+-----------------------------------------------------+
        |`JSONDumps`     |Serializes an object stream using `json.dumps`. Will |
        |                |try to use ujson, then built-in json.                |
        +----------------+-----------------------------------------------------+
        |`Split`         |Splits a stream that supports the `split` method.    |
        +----------------+-----------------------------------------------------+
        |`Joined`        |Joins a stream of the same type as the `by` argument.|
        +----------------+-----------------------------------------------------+
        |`Tee`           |Takes a sink and passes chunks along apparatus.      |
        +----------------+-----------------------------------------------------+
        |`Map`           |Takes a transformer function for single items in     |
        |                |stream.                                              |
        +----------------+-----------------------------------------------------+
        |`Filter`        |Takes a filter test callback and only forwards items |
        |                |that pass.                                           |
        +----------------+-----------------------------------------------------+
        |`ChunkMap`      |Takes a transformer function for batch of stream     |
        |                |items.                                               |
        +----------------+-----------------------------------------------------+
        
        Sinks
        ~~~~~
        
        +----------+----------------------------------------------------------------+
        |`Objects` |A list that stores all passed items to self.                    |
        +----------+----------------------------------------------------------------+
        |`Bytes`   |Saves each chunk self.results.                                  |
        +----------+----------------------------------------------------------------+
        |`File`    |Writes each chunk to a file.                                    |
        +----------+----------------------------------------------------------------+
        |`HTTPPost`|Writes data via HTTPPost.                                       |
        +----------+----------------------------------------------------------------+
        |`Hash`    |Takes algorithm name, updates hash with contents.               |
        +----------+----------------------------------------------------------------+
        |`Debugger`|Writes each chunk to the tubing.tubes debugger with level DEBUG.|
        +----------+----------------------------------------------------------------+
        
        Extensions
        ~~~~~~~~~~
        
        +-------------------------------------+-----------------------------------------------+
        |`s3.S3Source`                        |Create stream from an S3 object.               |
        +-------------------------------------+-----------------------------------------------+
        |`s3.MultipartUploader`               |Stream data to S3 object.                      |
        +-------------------------------------+-----------------------------------------------+
        |`elasticsearch.BulkSink`             |Stream `elasticsearch.DocUpdate` objects to the|
        |                                     |elasticsearch _bulk endpoint.                  |
        +-------------------------------------+-----------------------------------------------+
        
        Sources
        -------
        
        To make your own source, create a Reader class with the following interface.
        
        .. code-block:: python
        
            class MyReader(object):
                """
                MyReader returns count instances of data.
                """
                def __init__(self, data="hello world\n", count=10):
                    self.data = data
                    self.count = count
        
                def read(self, amt):
                    """
                    read(amt) returns $amt of data and a boolean indicating EOF.
                    """
                    if not amt:
                        amt = self.count
                    r = self.data * min(amt, self.count)
                    self.count -= amt
                    return r, self.count <= 0
        
        The important thing to remember is that your read function should return an
        iterable of units of data, not a single piece of data. Then wrap your reader in
        the loving embrace of MakeSourceFactory.
        
        .. code-block:: python
        
            from tubing import sources
        
            MySource = sources.MakeSourceFactory(MyReader)
        
        Now it can be used in a apparatus!
        
        .. code-block:: python
        
            from __future__ import print_function
        
            from tubing import tubes
            sink = MySource(data="goodbye cruel world!", count=1) \
                 | tubes.Joined(by=b"\n") \
                 | sinks.Bytes()
        
            print(sinks.result)
            # Output: goodbye cruel world!
        
        Tubes
        -----
        
        Making your own tube is a lot more fun, trust me. First make a Transformer.
        
        .. code-block:: python
        
            class OptimusPrime(object):
                def transform(self, chunk):
                    return list(reversed(chunk))
        
        `chunk` is an iterable with a len() of whatever type of data the stream is
        working with. In Transformers, you don't need to worry about buffer size or
        closing or exception, just transform an iterable to another iterable. There are
        lots of examples in tubes.py.
        
        Next give Optimus Prime a hug.
        
        .. code-block:: python
        
            from tubing import tubes
        
            AllMixedUp = tubes.MakeTranformerTubeFactory(OptimusPrime)
        
        Ready to mix up some data?
        
        .. code-block:: python
        
            from __future__ import print_function
        
            import json
            from tubing import sources, sinks
        
            objs = [{"number": i} for i in range(0, 10)]
        
            sink = sources.Objects(objs) \
                 | AllMixedUp(chunk_size=2) \
                 | sinks.Objects()
        
            print(json.dumps(sink))
            # Output: [{"number": 1}, {"number": 0}, {"number": 3}, {"number": 2}, {"number": 5}, {"number": 4}, {"number": 7}, {"number": 6}, {"number": 9}, {"number": 8}]
        
        Sinks
        -----
        
        Really getting tired of making documentation... Maybe I'll finish later. I have real work to do.
        
        Well.. I'm this far, let's just push through.
        
        .. code-block:: python
        
            from __future__ import print_function
            from tubing import sources, tubes, sinks
        
            class StdoutWriter(object):
                def write(self, chunk):
                    for part in chunk:
                        print(part)
        
                def close(self):
                    # this function is optional
                    print("That's all folks!")
        
                def abort(self):
                    # this is also optional
                    print("Something terrible has occurred.")
        
            Debugger = sinks.MakeSinkFactory(StdoutWriter)
        
            objs = [{"number": i} for i in range(0, 10)]
        
            sink = sources.Objects(objs) \
                 | AllMixedUp(chunk_size=2) \
                 | tubes.JSONDumps() \
                 | tubes.Joined(by=b"\n") \
                 | Debugger()
            # Output:
            #{"number": 1}
            #{"number": 0}
            #{"number": 3}
            #{"number": 2}
            #{"number": 5}
            #{"number": 4}
            #{"number": 7}
            #{"number": 6}
            #{"number": 9}
            #{"number": 8}
            #That's all folks!
        
Platform: UNKNOWN
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3.2
Classifier: Programming Language :: Python :: 3.3
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
