nltk.corpus.reader.switchboard module

class nltk.corpus.reader.switchboard.SwitchboardCorpusReader[source]

Bases: CorpusReader

__init__(root, tagset=None)[source]
  • root (PathPointer or str) – A path pointer identifying the root directory for this corpus. If a string is specified, then it will be converted to a PathPointer automatically.

  • fileids – A list of the files that make up this corpus. This list can either be specified explicitly, as a list of strings; or implicitly, as a regular expression over file paths. The absolute path for each file will be constructed by joining the reader’s root to each file name.

  • encoding

    The default unicode encoding for the files that make up the corpus. The value of encoding can be any of the following:

    • A string: encoding is the encoding name for all files.

    • A dictionary: encoding[file_id] is the encoding name for the file whose identifier is file_id. If file_id is not in encoding, then the file contents will be processed using non-unicode byte strings.

    • A list: encoding should be a list of (regexp, encoding) tuples. The encoding for a file whose identifier is file_id will be the encoding value for the first tuple whose regexp matches the file_id. If no tuple’s regexp matches the file_id, the file contents will be processed using non-unicode byte strings.

    • None: the file contents of all files will be processed using non-unicode byte strings.

  • tagset – The name of the tagset used by this corpus, to be used for normalizing or converting the POS tags returned by the tagged_...() methods.

class nltk.corpus.reader.switchboard.SwitchboardTurn[source]

Bases: list

A specialized list object used to encode switchboard utterances. The elements of the list are the words in the utterance; and two attributes, speaker and id, are provided to retrieve the spearker identifier and utterance id. Note that utterance ids are only unique within a given discourse.

__init__(words, speaker, id)[source]