Skip to content
master
Switch branches/tags
Code

Latest commit

* Add in conversion to<->from double and string/bytes values
uses the google double-conversion library

* Include headers for double-conversion

* Switch to a fork of double-conversion, update submodule to master

* Work around lack of pyarrow py3.8 support when generating docs

If you try to call to_pyarrow() and pyarrow lib is not available, now raise a RuntimeError()?
Docs generation will catch and handle RuntimeError when calculating input dtype compatibility
Switch docs generation to the 3.7 actions runner, ensuring that the published docs include the pyarrow compatbility matrix

* Actually add the change to RuntimeError exeption (as mentioned previously)
986a84c

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
pyx
 
 
src
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

pytubes

Source: https://github.com/stestagg/pytubes

Pytubes is a library that optimizes loading datasets into memory.

At it’s core is a set of specialized C++ classes that can be chained together to load and manipulate data using a standard iterator pattern. Around this there is a cython extension module that makes defining and configuring a tube simple and straight-forward.

Simple Example

>>> from tubes import Each
>>> import glob
>>> tube = (Each(glob.glob("*.json"))   # Iterate over some filenames
        .read_files()                   # Read each file, chunk by chunk
        .split()                        # Split the file, line-by-line
        .json()                         # parse json
        .get('country_code', 'null'))   # extract field named 'country_code'
>>> set(tube)                           # collect results in a set
{'A1', 'AD', 'AE', 'AF', 'AG', 'AL', 'AM', 'AO', 'AP', ...}

More Complex Example

>>> from tubes import Each
>>> import glob
>>> x = (Each(glob.glob('*.jsonz'))
        .map_files()
        .gunzip()
        .split(b'\n')
        .json()
        .enumerate()
        .skip_unless(lambda x: x.slot(1).get('country_code', '""').to(str).equals('GB'))
        .multi(lambda x: (
            x.slot(0),
            x.slot(1).get('timestamp', 'null'),
            x.slot(1).get('country_code', 'null'),
            x.slot(1).get('url', 'null'),
            x.slot(1).get('file', '{}').get('filename', 'null'),
            x.slot(1).get('file', '{}').get('project'),
            x.slot(1).get('details', '{}').get('installer', '{}').get('name', 'null'),
            x.slot(1).get('details', '{}').get('python', 'null'),
            x.slot(1).get('details', '{}').get('system', 'null'),
            x.slot(1).get('details', '{}').get('system', '{}').get('name', 'null'),
            x.slot(1).get('details', '{}').get('cpu', 'null'),
            x.slot(1).get('details', '{}').get('distro', '{}').get('libc', '{}').get('lib', 'null'),
            x.slot(1).get('details', '{}').get('distro', '{}').get('libc', '{}').get('version', 'null'),
        ))
    )
>>> print(list(x)[-3])
(15,612,767, '2017-12-14 09:33:31 UTC', 'GB', '/packages/29/9b/25ef61e948321296f029f53c9f67cc2b54e224db509eb67ce17e0df6044a/certifi-2017.11.5-py2.py3-none-any.whl', 'certifi-2017.11.5-py2.py3-none-any.whl', 'certifi', 'pip', '2.7.5', {'name': 'Linux', 'release': '2.6.32-696.10.3.el6.x86_64'}, 'Linux', 'x86_64', 'glibc', '2.17')