#!/usr/bin/env python3
from subprocess import STDOUT, CalledProcessError, check_output
import sys
import os
import re
from functools import lru_cache
@lru_cache(maxsize=1)
def version():
args_tess = [
'tesseract',
'--version'
]
try:
versions = check_output(
args_tess, close_fds=True, universal_newlines=True,
stderr=STDOUT)
except CalledProcessError:
print("Could not find Tesseract executable on system PATH.")
sys.exit(1)
tesseract_version = re.match(r'tesseract\s(.+)', versions).group(1)
return tesseract_version
@lru_cache(maxsize=1)
def languages():
args_tess = [
'tesseract',
'--list-langs'
]
langs = check_output(
args_tess, close_fds=True, universal_newlines=True,
stderr=STDOUT)
return set(lang.strip() for lang in langs.splitlines()[1:])
HOCR_TEMPLATE = '''
'''