Files
PySenti/pysenti/__init__.py
T
Azalea (on HyDEV-Daisy) 2d8bb6b71b [+] Implement get_senti
2022-04-14 20:27:02 -04:00

58 lines
1.3 KiB
Python

from __future__ import annotations
import subprocess as sp
from typing import NamedTuple, Iterable
import pkg_resources
__version__ = '1.0.0'
JAVA_COMMAND = 'java'
class SentiResult(NamedTuple):
positive: int
negative: int
neutral: int
def scale(self) -> int:
return self.positive - self.negative
def is_positive(self) -> bool:
return self.scale() > 0
def _paths() -> tuple[str, str]:
jar = pkg_resources.resource_filename(__name__, 'original/SentiStrength.jar')
data = pkg_resources.resource_filename(__name__, 'original/data') + '/'
return jar, data
def _cmd() -> list[str]:
jar, data = _paths()
return [JAVA_COMMAND, '-jar', jar, 'sentidata', data]
def _decode_output(stdout: str | bytes) -> SentiResult:
"""
Decode SentiStrength java output
:param stdout: The result that SentiStrength printed
:return: Parsed SentiResult
"""
if isinstance(stdout, bytes):
stdout = stdout.decode()
return SentiResult(*[int(s) for s in stdout.strip().replace('\t', ' ').split(' ')])
def get_senti(text: str) -> SentiResult:
"""
Get sentiment score of a text
:param text:
:return: Sentiment result
"""
return _decode_output(sp.check_output([*_cmd(), 'trinary', 'text', text.strip()]))