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GuessIt is a python library that tries to extract as much information as possible from a filename.



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GuessIt is a python library that extracts as much information as possible from a video file.

It has a very powerful filename matcher that allows to guess a lot of metadata from a video using its filename only. This matcher works with both movies and tv shows episodes.

For example, GuessIt can do the following:

$ guessit "Treme.1x03.Right.Place,.Wrong.Time.HDTV.XviD-NoTV.avi"
For: Treme.1x03.Right.Place,.Wrong.Time.HDTV.XviD-NoTV.avi
GuessIt found: {
    [1.00] "mimetype": "video/x-msvideo",
    [0.80] "episodeNumber": 3,
    [0.80] "videoCodec": "XviD",
    [1.00] "container": "avi",
    [1.00] "format": "HDTV",
    [0.70] "series": "Treme",
    [0.50] "title": "Right Place, Wrong Time",
    [0.80] "releaseGroup": "NoTV",
    [0.80] "season": 1,
    [1.00] "type": "episode"


Installing GuessIt is simple with pip:

$ pip install guessit

or, with easy_install:

$ easy_install guessit

But, you really shouldn't do that.

You can now launch a demo:

$ guessit -d

and guess your own filename:

$ guessit "Breaking.Bad.S05E08.720p.MP4.BDRip.[KoTuWa].mkv"
For: Breaking.Bad.S05E08.720p.MP4.BDRip.[KoTuWa].mkv
GuessIt found: {
    [1.00] "mimetype": "video/x-matroska",
    [1.00] "episodeNumber": 8,
    [0.30] "container": "mkv",
    [1.00] "format": "BluRay",
    [0.70] "series": "Breaking Bad",
    [1.00] "releaseGroup": "KoTuWa",
    [1.00] "screenSize": "720p",
    [1.00] "season": 5,
    [1.00] "type": "episode"

Filename matcher

The filename matcher is based on pattern matching and is able to recognize many properties from the filename, like title, year, series, episodeNumber, seasonNumber, videoCodec, screenSize, language. Guessed values are cleaned up and given in a readable format which may not match exactly the raw filename.

The full list of available properties can be seen in the main documentation.

Other features

GuessIt also allows you to compute a whole lot of hashes from a file, namely all the ones you can find in the hashlib python module (md5, sha1, ...), but also the Media Player Classic hash that is used (amongst others) by OpenSubtitles and SMPlayer, as well as the ed2k hash.

If you have the 'guess-language' python package installed, GuessIt can also analyze a subtitle file's contents and detect which language it is written in.

If you have the 'enzyme' python package installed, GuessIt can also detect the properties from the actual video file metadata.


guessit can be use from command line:

$ guessit
usage: guessit [-h] [-t TYPE] [-n] [-c] [-X DISABLED_TRANSFORMERS] [-v]
               [-P SHOW_PROPERTY] [-u] [-a] [-y] [-f INPUT_FILE] [-d] [-p]
               [-V] [-s] [--version] [-b] [-i INFO] [-S EXPECTED_SERIES]
               [-T EXPECTED_TITLE] [-Y] [-D] [-L ALLOWED_LANGUAGES] [-E]
               [filename [filename ...]]

positional arguments:
  filename              Filename or release name to guess

optional arguments:
  -h, --help            show this help message and exit

  -t TYPE, --type TYPE  The suggested file type: movie, episode. If undefined,
                        type will be guessed.
  -n, --name-only       Parse files as name only. Disable folder parsing,
                        extension parsing, and file content analysis.
  -c, --split-camel     Split camel case part of filename.
                        Transformer to disable (can be used multiple time)
                        Expected series to parse (can be used multiple times)
                        Expected title (can be used multiple times)
  -Y, --date-year-first
                        If short date is found, consider the first digits as
                        the year.
  -D, --date-day-first  If short date is found, consider the second digits as
                        the day.
                        Allowed language (can be used multiple times)
  -E, --episode-prefer-number
                        Guess "serie.213.avi" as the episodeNumber 213.
                        Without this option, it will be guessed as season 2,
                        episodeNumber 13
                        Allowed country (can be used multiple times)
                        Expected release group (can be used multiple times)

  -v, --verbose         Display debug output
                        Display the value of a single property (title, series,
                        videoCodec, year, type ...)
  -u, --unidentified    Display the unidentified parts.
  -a, --advanced        Display advanced information for filename guesses, as
                        json output
  -y, --yaml            Display information for filename guesses as yaml
                        output (like unit-test)
  -f INPUT_FILE, --input-file INPUT_FILE
                        Read filenames from an input file.
  -d, --demo            Run a few builtin tests instead of analyzing a file

  -p, --properties      Display properties that can be guessed.
  -V, --values          Display property values that can be guessed.
  -s, --transformers    Display transformers that can be used.
  --version             Display the guessit version.
  -b, --bug             Submit a wrong detection to the service

Other features:
  -i INFO, --info INFO  The desired information type: filename, video,
                        hash_mpc or a hash from python's hashlib module, such
                        as hash_md5, hash_sha1, ...; or a list of any of them,

It can also be used as a python module:

>>> from guessit import guess_file_info
>>> guess_file_info('Treme.1x03.Right.Place,.Wrong.Time.HDTV.XviD-NoTV.avi')
{u'mimetype': 'video/x-msvideo', u'episodeNumber': 3, u'videoCodec': u'XviD', u'container': u'avi', u'format':     u'HDTV', u'series': u'Treme', u'title': u'Right Place, Wrong Time', u'releaseGroup': u'NoTV', u'season': 1, u'type': u'episode'}


The project website for GuessIt is hosted at ReadTheDocs. There you will also find the User guide and Developer documentation.

This project is hosted on GitHub:

Please report issues and/or feature requests via the bug tracker.

You can also report issues using the command-line tool:

$ guessit --bug "filename.that.fails.avi"


GuessIt is under active development, and contributions are more than welcome!

  1. Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug. There is a Contributor Friendly tag for issues that should be ideal for people who are not very familiar with the codebase yet.
  2. Fork the repository on Github to start making your changes to the master branch (or branch off of it).
  3. Write a test which shows that the bug was fixed or that the feature works as expected.
  4. Send a pull request and bug the maintainer until it gets merged and published. :)


GuessIt is licensed under the LGPLv3 license.

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