pattern command-line interface

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 (wasbe). 
-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.'