MMOCR / mmocr /__init__.py
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# Copyright (c) OpenMMLab. All rights reserved.
import warnings
import mmcv
import mmdet
from packaging.version import parse
from .version import __version__, short_version
def digit_version(version_str: str, length: int = 4):
"""Convert a version string into a tuple of integers.
This method is usually used for comparing two versions. For pre-release
versions: alpha < beta < rc.
Args:
version_str (str): The version string.
length (int): The maximum number of version levels. Default: 4.
Returns:
tuple[int]: The version info in digits (integers).
"""
version = parse(version_str)
assert version.release, f'failed to parse version {version_str}'
release = list(version.release)
release = release[:length]
if len(release) < length:
release = release + [0] * (length - len(release))
if version.is_prerelease:
mapping = {'a': -3, 'b': -2, 'rc': -1}
val = -4
# version.pre can be None
if version.pre:
if version.pre[0] not in mapping:
warnings.warn(f'unknown prerelease version {version.pre[0]}, '
'version checking may go wrong')
else:
val = mapping[version.pre[0]]
release.extend([val, version.pre[-1]])
else:
release.extend([val, 0])
elif version.is_postrelease:
release.extend([1, version.post])
else:
release.extend([0, 0])
return tuple(release)
mmcv_minimum_version = '1.3.8'
mmcv_maximum_version = '1.5.0'
mmcv_version = digit_version(mmcv.__version__)
assert (mmcv_version >= digit_version(mmcv_minimum_version)
and mmcv_version <= digit_version(mmcv_maximum_version)), \
f'MMCV {mmcv.__version__} is incompatible with MMOCR {__version__}. ' \
f'Please use MMCV >= {mmcv_minimum_version}, ' \
f'<= {mmcv_maximum_version} instead.'
mmdet_minimum_version = '2.14.0'
mmdet_maximum_version = '3.0.0'
mmdet_version = digit_version(mmdet.__version__)
assert (mmdet_version >= digit_version(mmdet_minimum_version)
and mmdet_version <= digit_version(mmdet_maximum_version)), \
f'MMDetection {mmdet.__version__} is incompatible ' \
f'with MMOCR {__version__}. ' \
f'Please use MMDetection >= {mmdet_minimum_version}, ' \
f'<= {mmdet_maximum_version} instead.'
__all__ = ['__version__', 'short_version', 'digit_version']