Migrate Python code to a dedicated package

src/.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/

src/README.md

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+# tesstrain.py
+
+Utilities for working with Tesseract >= 4 using artificial training data.
+
+## Install
+
+This package requires the Tesseract training tools to be available on your system.
+
+To install the PIP package, either use `pip install tesstrain` (for existing packages) or `pip install .` (from source checkout).
+A supported Python version (at least 3.7) is required for running.
+
+## Running
+
+* Use the terminal interface to directly interact with the tools: `python -m tesstrain --help`.
+* Call it from your own code using the high-level interface `tesstrain.run()`.
+
+## License
+
+Software is provided under the terms of the `Apache 2.0` license.
+
+Sample training data provided by [Deutsches Textarchiv](https://deutschestextarchiv.de) is [in the public domain](http://creativecommons.org/publicdomain/mark/1.0/).

src/setup.cfg

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+[metadata]
+version = attr: tesstrain.__version__

src/setup.py

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+from pathlib import Path
+
+import setuptools
+
+
+ROOT_DIRECTORY = Path(__file__).parent.resolve()
+
+setuptools.setup(
+    name='tesstrain',
+    description='Training utils for Tesseract',
+    long_description=(ROOT_DIRECTORY / 'README.md').read_text(encoding='utf-8'),
+    long_description_content_type='text/markdown',
+    url='https://github.com/tesseract-ocr/tesstrain',
+    packages=setuptools.find_packages(),
+    license='Apache Software License 2.0',
+    author='Tesseract contributors',
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Developers',
+        'Topic :: Scientific/Engineering :: Image Recognition',
+        'License :: OSI Approved :: Apache Software License',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3 :: Only',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
+    ],
+    keywords='Tesseract,tesseract-ocr,OCR,optical character recognition',
+
+    python_requires='>=3.7',
+    install_requires=[
+        'tqdm',
+    ],
+
+    entry_points={
+        'console_scripts': [
+        ],
+    },
+)

src/tesstrain/__init__.py

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+# (C) Copyright 2014, Google Inc.
+# (C) Copyright 2018, James R Barlow
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from tesstrain.wrapper import run
+
+__version__ = '0.1'

src/tesstrain/__main__.py

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+# (C) Copyright 2014, Google Inc.
+# (C) Copyright 2018, James R Barlow
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This script provides an easy way to execute various phases of training
+# Tesseract.  For a detailed description of the phases, see
+# https://tesseract-ocr.github.io/tessdoc/Training-Tesseract.html.
+
+import logging
+
+from tesstrain.arguments import (
+    get_argument_parser,
+    TrainingArguments,
+    verify_parameters_and_handle_defaults
+)
+from tesstrain.generate import cleanup
+from tesstrain.wrapper import run_from_context
+
+
+log = logging.getLogger()
+
+
+def setup_logging_console():
+    log.setLevel(logging.DEBUG)
+    console = logging.StreamHandler()
+    console.setLevel(logging.INFO)
+    console_formatter = logging.Formatter(
+        "[%(asctime)s] %(levelname)s - %(message)s", datefmt="%H:%M:%S"
+    )
+    console.setFormatter(console_formatter)
+    log.addHandler(console)
+
+
+def setup_logging_logfile(logfile):
+    logfile = logging.FileHandler(logfile, encoding='utf-8')
+    logfile.setLevel(logging.DEBUG)
+    logfile_formatter = logging.Formatter(
+        "[%(asctime)s] - %(levelname)s - %(name)s - %(message)s"
+    )
+    logfile.setFormatter(logfile_formatter)
+    log.addHandler(logfile)
+    return logfile
+
+
+def parse_flags(argv=None):
+    ctx = TrainingArguments()
+    log.debug(ctx)
+    parser = get_argument_parser()
+    parser.parse_args(args=argv, namespace=ctx)
+    return verify_parameters_and_handle_defaults(ctx)
+
+
+def main():
+    setup_logging_console()
+    ctx = parse_flags()
+    logfile = setup_logging_logfile(ctx.log_file)
+
+    run_from_context(ctx)
+
+    log.removeHandler(logfile)
+    logfile.close()
+    cleanup(ctx)
+    log.info("All done!")
+    return 0
+
+
+if __name__ == '__main__':
+    main()