pattern.shell

pattern.en parser

The English parser can be invoked from the command-line. The pattern module should be installed (i.e., located in /site-packages, see installation instructions) or the current working directory should be the one that contains the pattern folder.

> python -m pattern.en -f file.txt

If no options are given a full parse is executed (i.e. tokenization, tagging, chunking, relations and lemmata). Otherwise, you need to explicitly list every required option:

-O	--tokenize	Tokenize the input.
-T	--tags	Parse part-of-speech tags.
-C	--chunks	Parse chunks and PNP tags.
-R	--relations	Parse verb/predicate relations.
-L	--lemmata	Parse lemmata (was → be).
-f	--file	Input file path.
-s	--string	Input string.
-e	--encoding	Specify character encoding (utf-8 by default).
-v	--version	Print current version of Pattern.

Short options can be concatenated. Also note the xml option which produces XML output:

> python -m pattern.en xml -OT -s 'The black cat sat on the mat.'

pattern.es | de | fr | it | nl parsers

The parsers for other languages work in the same way. Note the xml option (produces XML output).

> python -m pattern.es -s 'El gato negro se sienta en la estera.'

> python -m pattern.de -s 'Die schwarze Katze liegt auf der Matte.'

> python -m pattern.fr -s "Le chat noir s'était assis sur le tapis."

> python -m pattern.it -s 'Il gatto nero faceva le fusa.'

> python -m pattern.nl -s 'De zwarte kat zat op de mat.'