本文整理匯總了Python中pip._vendor.distlib.version._normalized_key方法的典型用法代碼示例。如果您正苦於以下問題：Python version._normalized_key方法的具體用法？Python version._normalized_key怎麽用？Python version._normalized_key使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類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個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: is_prerelease
# 需要導入模塊: from pip._vendor.distlib import version [as 別名]
# 或者: from pip._vendor.distlib.version import _normalized_key [as 別名]
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])