本文整理汇总了Python中pip._vendor.distlib.version._normalized_key方法的典型用法代码示例。如果您正苦于以下问题：Python version._normalized_key方法的具体用法？Python version._normalized_key怎么用？Python version._normalized_key使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pip._vendor.distlib.version的用法示例。
在下文中一共展示了version._normalized_key方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: is_prerelease
# 需要导入模块: from pip._vendor.distlib import version [as 别名]
# 或者: from pip._vendor.distlib.version import _normalized_key [as 别名]
def is_prerelease(vers):
"""
Attempt to determine if this is a pre-release using PEP386/PEP426 rules.
Will return True if it is a pre-release and False if not. Versions are
assumed to be a pre-release if they cannot be parsed.
"""
normalized = version._suggest_normalized_version(vers)
if normalized is None:
# Cannot normalize, assume it is a pre-release
return True
parsed = version._normalized_key(normalized)
return any([any([y in set(["a", "b", "c", "rc", "dev"]) for y in x]) for x in parsed])