不带 distutils.version 的 Python 版本列表

Question

如何在不使用 distutils 的情况下对版本列表进行排序？

distutils.version 对版本号的长度有限制，所以我得到了

严格版本

msg": "invalid version number '11.2.0.4.v4'" 

宽松版本

"results": null 

未排序的结果

["11.2.0.4.v4", "11.2.0.4.v5", "11.2.0.4.v6", "11.2.0.4.v7", "11.2.0.4.v8", 
 "11.2.0.4.v9", "11.2.0.4.v10", "11.2.0.4.v11", "11.2.0.4.v12", 
 "11.2.0.4.v13", "11.2.0.4.v14", "11.2.0.4.v15", "11.2.0.4.v16", 
 "11.2.0.4.v17", "12.1.0.2.v1", "12.1.0.2.v2", "12.1.0.2.v3", "12.1.0.2.v4", 
 "12.1.0.2.v5", "12.1.0.2.v6", "12.1.0.2.v7", "12.1.0.2.v8", "12.1.0.2.v9", 
 "12.1.0.2.v10", "12.1.0.2.v11", "12.1.0.2.v12", "12.1.0.2.v13"]

相关代码

try:
    params = dict()
    params['Engine'] = module.params.get('engine_name')
    results = client.describe_db_engine_versions(**params)
    versions = [z['EngineVersion'] for z in results['DBEngineVersions']]
    return versions.sort(key=StrictVersion)        
except Exception as e:
    module.fail_json(msg=str(e))

Answer 1

setuptools有一个更好的:

>>> from pkg_resources import parse_version
>>> max(versions, key=parse_version)
'12.1.0.2.v13'
>>> sorted(versions, key=parse_version)
['11.2.0.4.v4',
 '11.2.0.4.v5',
 '11.2.0.4.v6',
 '11.2.0.4.v7',
 '11.2.0.4.v8',
 '11.2.0.4.v9',
 '11.2.0.4.v10',
 '11.2.0.4.v11',
 '11.2.0.4.v12',
 '11.2.0.4.v13',
 '11.2.0.4.v14',
 '11.2.0.4.v15',
 '11.2.0.4.v16',
 '11.2.0.4.v17',
 '12.1.0.2.v1',
 '12.1.0.2.v2',
 '12.1.0.2.v3',
 '12.1.0.2.v4',
 '12.1.0.2.v5',
 '12.1.0.2.v6',
 '12.1.0.2.v7',
 '12.1.0.2.v8',
 '12.1.0.2.v9',
 '12.1.0.2.v10',
 '12.1.0.2.v11',
 '12.1.0.2.v12',
 '12.1.0.2.v13']