Corpus downloading

Download and unpack the archive with XML files from http://www.ruscorpora.ru/corpora-usage.html

Corpus reading

ruscorpora.parse_xml function parses single XML file and returns an iterator over sentences; each sentence is a list of ruscorpora.Token instances, annotated with a list of ruscorpora.Annotation instances.

ruscorpora.simplify simplifies a result of ruscorpora.parse_xml by removing ambiguous annotations, joining split tokens (+ joining their annotations) and removing accent information.

>>> import ruscorpora as rnc
>>> for sent in rnc.simplify(rnc.parse('fiction.xml')):
...     print(sent)

Working with tags

ruscorpora.Tag class is a convenient wrapper for tags used in ruscorpora:

>>> tag = rnc.Tag('S,f,inan=sg,nom')
>>> tag.POS
'S'
>>> tag.gender
'f'
>>> tag.animacy
'inan'
>>> tag.number
'sg'
>>> tag.case
'nom'
>>> tag.tense
None

(there are also other attributes).

Check if a grammeme is in tag:

>>> 'S' in tag
True
>>> 'V' in tag
False
>>> 'Foo' in tag
Traceback (most recent call last)
...
ValueError: Grammeme is unknown: Foo

Test tags equality:

>>> tag == rnc.Tag('S,f,inan=sg,nom')
True
>>> tag == 'S,f,inan=sg,nom'
True
>>> tag == rnc.Tag('S,f,inan=sg,acc')
False
>>> tag == 'S,f,inan=sg,acc'
False
>>> tag == 'Foo,inan'
Traceback (most recent call last)
...
ValueError: Unknown grammemes: frozenset({Foo})

Tags returned by rnc.simplify are wrapped with this class by default.

Running tests

Make sure tox is installed and run

$ tox

from the source checkout. Tests should pass under python 2.6..3.3 and pypy > 1.8.