本文整理汇总了Python中pip._vendor.pkg_resources.WorkingSet方法的典型用法代码示例。如果您正苦于以下问题：Python pkg_resources.WorkingSet方法的具体用法？Python pkg_resources.WorkingSet怎么用？Python pkg_resources.WorkingSet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.pkg_resources的用法示例。
在下文中一共展示了pkg_resources.WorkingSet方法的3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: get_installed_version
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import WorkingSet [as 别名]
def get_installed_version(dist_name, lookup_dirs=None):
"""Get the installed version of dist_name avoiding pkg_resources cache"""
# Create a requirement that we'll look for inside of setuptools.
req = pkg_resources.Requirement.parse(dist_name)
# We want to avoid having this cached, so we need to construct a new
# working set each time.
if lookup_dirs is None:
working_set = pkg_resources.WorkingSet()
else:
working_set = pkg_resources.WorkingSet(lookup_dirs)
# Get the installed distribution from our working set
dist = working_set.find(req)
# Check to see if we got an installed distribution or not, if we did
# we want to return it's version.
return dist.version if dist else None 示例2: get_installed_version
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import WorkingSet [as 别名]
def get_installed_version(dist_name, working_set=None):
"""Get the installed version of dist_name avoiding pkg_resources cache"""
# Create a requirement that we'll look for inside of setuptools.
req = pkg_resources.Requirement.parse(dist_name)
if working_set is None:
# We want to avoid having this cached, so we need to construct a new
# working set each time.
working_set = pkg_resources.WorkingSet()
# Get the installed distribution from our working set
dist = working_set.find(req)
# Check to see if we got an installed distribution or not, if we did
# we want to return it's version.
return dist.version if dist else None 示例3: check_requirements
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import WorkingSet [as 别名]
def check_requirements(self, reqs):
# type: (Iterable[str]) -> Tuple[Set[Tuple[str, str]], Set[str]]
"""Return 2 sets:
- conflicting requirements: set of (installed, wanted) reqs tuples
- missing requirements: set of reqs
"""
missing = set()
conflicting = set()
if reqs:
ws = WorkingSet(self._lib_dirs)
for req in reqs:
try:
if ws.find(Requirement.parse(req)) is None:
missing.add(req)
except VersionConflict as e:
conflicting.add((str(e.args[0].as_requirement()),
str(e.args[1])))
return conflicting, missing