本文整理汇总了Python中pip._vendor.pkg_resources.VersionConflict方法的典型用法代码示例。如果您正苦于以下问题:Python pkg_resources.VersionConflict方法的具体用法?Python pkg_resources.VersionConflict怎么用?Python pkg_resources.VersionConflict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.VersionConflict方法的6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: 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 VersionConflict [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
示例2: check_if_exists
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import VersionConflict [as 别名]
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
# get_distribution() will resolve the entire list of requirements
# anyway, and we've already determined that we need the requirement
# in question, so strip the marker so that we don't try to
# evaluate it.
no_marker = Requirement(str(self.req))
no_marker.marker = None
self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
if self.editable and self.satisfied_by:
self.conflicts_with = self.satisfied_by
# when installing editables, nothing pre-existing should ever
# satisfy
self.satisfied_by = None
return True
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(
self.req.name
)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv() and
dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location)
)
else:
self.conflicts_with = existing_dist
return True
示例3: check_if_exists
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import VersionConflict [as 别名]
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
self.satisfied_by = pkg_resources.get_distribution(self.req)
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(
self.req.project_name
)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv() and
dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location)
)
else:
self.conflicts_with = existing_dist
return True
示例4: check_if_exists
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import VersionConflict [as 别名]
def check_if_exists(self, use_user_site):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
# get_distribution() will resolve the entire list of requirements
# anyway, and we've already determined that we need the requirement
# in question, so strip the marker so that we don't try to
# evaluate it.
no_marker = Requirement(str(self.req))
no_marker.marker = None
self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
if self.editable and self.satisfied_by:
self.conflicts_with = self.satisfied_by
# when installing editables, nothing pre-existing should ever
# satisfy
self.satisfied_by = None
return True
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(
self.req.name
)
if use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv() and
dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location)
)
else:
self.conflicts_with = existing_dist
return True
示例5: check_if_exists
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import VersionConflict [as 别名]
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
# get_distribution() will resolve the entire list of requirements
# anyway, and we've already determined that we need the requirement
# in question, so strip the marker so that we don't try to
# evaluate it.
no_marker = Requirement(str(self.req))
no_marker.marker = None
self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(
self.req.name
)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv() and
dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location)
)
else:
self.conflicts_with = existing_dist
return True
示例6: check_if_exists
# 需要导入模块: from pip._vendor import pkg_resources [as 别名]
# 或者: from pip._vendor.pkg_resources import VersionConflict [as 别名]
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately."""
if self.req is None:
return False
try:
# DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
# if we've already set distribute as a conflict to setuptools
# then this check has already run before. we don't want it to
# run again, and return False, since it would block the uninstall
# TODO: remove this later
if (self.req.project_name == 'setuptools'
and self.conflicts_with
and self.conflicts_with.project_name == 'distribute'):
return True
else:
self.satisfied_by = pkg_resources.get_distribution(self.req)
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(self.req.project_name)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif running_under_virtualenv() and dist_in_site_packages(existing_dist):
raise InstallationError("Will not install to the user site because it will lack sys.path precedence to %s in %s"
%(existing_dist.project_name, existing_dist.location))
else:
self.conflicts_with = existing_dist
return True