Python-SentiStrength

Python 3 Wrapper for SentiStrength, reads a single or multiple input with options for binary class or scale output.

Ensure that you have SentiStrength.jar file and SentiStrengthData Language folders, otherwise you can download them from http://sentistrength.wlv.ac.uk/. For jar file, you will have to email Dr. Mike Thelwall.

Installation

Pip:

pip install sentistrength

Examples

Example use (single string):

>>> from sentistrength import PySentiStr
>>> senti = PySentiStr()
>>> result = senti.getSentiment('What a lovely day')
>>> print(result)

... [0.25]

Example use (list of strings or pandas Series):

>>> from sentistrength import PySentiStr
>>> senti = PySentiStr()
>>> str_arr = ['What a lovely day', 'What a bad day']
>>> result = senti.getSentiment(str_arr, score='scale')
>>> print(result)

... [1, -1]
# OR, if you want dual scoring (a score each for positive rating and negative rating)
>>> result = senti.getSentiment(str_arr, score='dual')
>>> print(result)

... [(2, -1), (1, -2)]
# OR, if you want binary scoring (1 for positive sentence, -1 for negative sentence)
>>> result = senti.getSentiment(str_arr, score='binary')
>>> print(result)

... [1, -1]
# OR, if you want trinary scoring (a score each for positive rating, negative rating and neutral rating)
>>> result = senti.getSentiment(str_arr, score='trinary')
>>> print(result)

... [(2, -1, 1), (1, -2, -1)]

Path Setup

Specify the paths as such:

>>> senti = PySentiStr()
>>> senti.setSentiStrengthPath('C:/Documents/SentiStrength.jar') # Note: Provide absolute path instead of relative path
>>> senti.setSentiStrengthLanguageFolderPath('C:/Documents/SentiStrengthData/') # Note: Provide absolute path instead of relative path

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

• Big thanks to Dr. Mike Thelwall for access to SentiStrength.