def find_requirement(self, req, upgrade):
desired_req, return_value = self.expected[self.times_called]
eq_(req.req, desired_req)
self.times_called += 1
if return_value is None:
raise DistributionNotFound()
else:
return return_value
def installed_version(self):
if self.is_wheel:
try:
dist = pkg_resources.get_distribution(self.name)
except pkg_resources.DistributionNotFound as e:
# Replace pkg_resources exception with a pip one
# to avoid leaking internal details
raise DistributionNotFound(*e.args)
return dist.version
return self.pkg_info()['version']
def determine_file_path(self, pkg_name, pkg_version):
findable_pairs = (
(self.colorama_dependency.id.artifact_id,
self.colorama_dependency.id.version),
(self.mock_dependency.id.artifact_id,
self.mock_dependency.id.version),
(self.nose_dependency.id.artifact_id,
self.nose_dependency.id.version),
)
if (pkg_name, pkg_version) in findable_pairs:
return self._compute_synthetic_path(pkg_name, pkg_version)
else:
raise DistributionNotFound()
def test_resolve_unresolvable():
dist = JohnnyDist('distX')
data = dist.serialise(recurse=False,
fields=['project_name', 'summary', 'requires'])
assert data == [{
'project_name': 'distX',
'summary': 'Dist with unresolvable dependencies',
'requires':
['distC (<=0.1)',
'distC (>0.2)'], # this installation requirement can not be resolved
}]
gen = flatten_deps(dist)
assert next(gen) is dist
with ShouldRaise(
DistributionNotFound(
'No matching distribution found for distc<=0.1,>0.2')):
next(gen)
def find_requirement(self, req, upgrade):
"""Try to find a Link matching req
Expects req, an InstallRequirement and upgrade, a boolean
Returns a Link if found,
Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
"""
all_candidates = self.find_all_candidates(req.name)
# Filter out anything which doesn't match our specifier
compatible_versions = set(
req.specifier.filter(
# We turn the version object into a str here because otherwise
# when we're debundled but setuptools isn't, Python will see
# packaging.version.Version and
# pkg_resources._vendor.packaging.version.Version as different
# types. This way we'll use a str as a common data interchange
# format. If we stop using the pkg_resources provided specifier
# and start using our own, we can drop the cast to str().
[str(c.version) for c in all_candidates],
prereleases=(self.allow_all_prereleases
if self.allow_all_prereleases else None),
))
applicable_candidates = [
# Again, converting to str to deal with debundling.
c for c in all_candidates if str(c.version) in compatible_versions
]
if applicable_candidates:
best_candidate = max(applicable_candidates,
key=self._candidate_sort_key)
else:
best_candidate = None
if req.satisfied_by is not None:
installed_version = parse_version(req.satisfied_by.version)
else:
installed_version = None
if installed_version is None and best_candidate is None:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)', req, ', '.join(
sorted(
set(str(c.version) for c in all_candidates),
key=parse_version,
)))
raise DistributionNotFound(
'No matching distribution found for %s' % req)
best_installed = False
if installed_version and (best_candidate is None or
best_candidate.version <= installed_version):
best_installed = True
if not upgrade and installed_version is not None:
if best_installed:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
installed_version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
installed_version,
best_candidate.version,
)
return None
if best_installed:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: '
'%s)',
installed_version,
', '.join(sorted(compatible_versions, key=parse_version))
or "none",
)
raise BestVersionAlreadyInstalled
logger.debug('Using version %s (newest of versions: %s)',
best_candidate.version,
', '.join(sorted(compatible_versions, key=parse_version)))
return best_candidate.location
def find_requirement(self, req, upgrade):
url_name = req.url_name
# Only check main index if index URL is given:
main_index_url = None
if self.index_urls:
# Check that we have the url_name correctly spelled:
main_index_url = Link(posixpath.join(self.index_urls[0], url_name))
# This will also cache the page, so it's okay that we get it again later:
page = self._get_page(main_index_url, req)
if page is None:
url_name = self._find_url_name(Link(self.index_urls[0]),
url_name, req) or req.url_name
# Combine index URLs with mirror URLs here to allow
# adding more index URLs from requirements files
all_index_urls = self.index_urls + self.mirror_urls
def mkurl_pypi_url(url):
loc = posixpath.join(url, url_name)
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's behavior.
if not loc.endswith('/'):
loc = loc + '/'
return loc
if url_name is not None:
locations = [mkurl_pypi_url(url)
for url in all_index_urls] + self.find_links
else:
locations = list(self.find_links)
locations.extend(self.dependency_links)
for version in req.absolute_versions:
if url_name is not None and main_index_url is not None:
locations = [posixpath.join(main_index_url.url, version)
] + locations
file_locations, url_locations = self._sort_locations(locations)
locations = [Link(url) for url in url_locations]
logger.debug('URLs to search for versions for %s:' % req)
for location in locations:
logger.debug('* %s' % location)
found_versions = []
found_versions.extend(
self._package_versions(
[Link(url, '-f') for url in self.find_links],
req.name.lower()))
page_versions = []
for page in self._get_pages(locations, req):
logger.debug('Analyzing links from page %s' % page.url)
logger.indent += 2
try:
page_versions.extend(
self._package_versions(page.links, req.name.lower()))
finally:
logger.indent -= 2
dependency_versions = list(
self._package_versions(
[Link(url) for url in self.dependency_links],
req.name.lower()))
if dependency_versions:
logger.info('dependency_links found: %s' % ', '.join(
[link.url for parsed, link, version in dependency_versions]))
file_versions = list(
self._package_versions([Link(url) for url in file_locations],
req.name.lower()))
if not found_versions and not page_versions and not dependency_versions and not file_versions:
logger.fatal(
'Could not find any downloads that satisfy the requirement %s'
% req)
raise DistributionNotFound('No distributions at all found for %s' %
req)
if req.satisfied_by is not None:
found_versions.append((req.satisfied_by.parsed_version, Inf,
req.satisfied_by.version))
if file_versions:
file_versions.sort(reverse=True)
logger.info('Local files found: %s' % ', '.join([
url_to_path(link.url)
for parsed, link, version in file_versions
]))
found_versions = file_versions + found_versions
all_versions = found_versions + page_versions + dependency_versions
applicable_versions = []
for (parsed_version, link, version) in all_versions:
if version not in req.req:
logger.info("Ignoring link %s, version %s doesn't match %s" %
(link, version, ','.join(
[''.join(s) for s in req.req.specs])))
continue
applicable_versions.append((link, version))
applicable_versions = sorted(
applicable_versions,
key=lambda v: pkg_resources.parse_version(v[1]),
reverse=True)
existing_applicable = bool(
[link for link, version in applicable_versions if link is Inf])
if not upgrade and existing_applicable:
if applicable_versions[0][1] is Inf:
logger.info(
'Existing installed version (%s) is most up-to-date and satisfies requirement'
% req.satisfied_by.version)
raise BestVersionAlreadyInstalled
else:
logger.info(
'Existing installed version (%s) satisfies requirement (most up-to-date version is %s)'
% (req.satisfied_by.version, applicable_versions[0][1]))
return None
if not applicable_versions:
logger.fatal(
'Could not find a version that satisfies the requirement %s (from versions: %s)'
% (req, ', '.join([
version for parsed_version, link, version in found_versions
])))
raise DistributionNotFound(
'No distributions matching the version for %s' % req)
if applicable_versions[0][0] is Inf:
# We have an existing version, and its the best version
logger.info(
'Installed version (%s) is most up-to-date (past versions: %s)'
% (req.satisfied_by.version, ', '.join(
[version
for link, version in applicable_versions[1:]]) or 'none'))
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.info('Using version %s (newest of versions: %s)' %
(applicable_versions[0][1], ', '.join(
[version
for link, version in applicable_versions])))
return applicable_versions[0][0]
def fn(pkg_name, pkg_version):
raise DistributionNotFound()
def find_requirement(self, req, upgrade):
def mkurl_pypi_url(url):
loc = posixpath.join(url, url_name)
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's behavior.
if not loc.endswith('/'):
loc = loc + '/'
return loc
url_name = req.url_name
# Only check main index if index URL is given:
main_index_url = None
if self.index_urls:
# Check that we have the url_name correctly spelled:
main_index_url = Link(mkurl_pypi_url(self.index_urls[0]),
trusted=True)
# This will also cache the page, so it's okay that we get it again later:
page = self._get_page(main_index_url, req)
if page is None:
url_name = self._find_url_name(
Link(self.index_urls[0], trusted=True), url_name,
req) or req.url_name
if url_name is not None:
locations = [mkurl_pypi_url(url)
for url in self.index_urls] + self.find_links
else:
locations = list(self.find_links)
for version in req.absolute_versions:
if url_name is not None and main_index_url is not None:
locations = [posixpath.join(main_index_url.url, version)
] + locations
file_locations, url_locations = self._sort_locations(locations)
_flocations, _ulocations = self._sort_locations(self.dependency_links)
file_locations.extend(_flocations)
# We trust every url that the user has given us whether it was given
# via --index-url or --find-links
locations = [Link(url, trusted=True) for url in url_locations]
# We explicitly do not trust links that came from dependency_links
locations.extend([Link(url) for url in _ulocations])
logger.debug('URLs to search for versions for %s:' % req)
for location in locations:
logger.debug('* %s' % location)
# Determine if this url used a secure transport mechanism
parsed = urlparse.urlparse(str(location))
if parsed.scheme in INSECURE_SCHEMES:
secure_schemes = INSECURE_SCHEMES[parsed.scheme]
if len(secure_schemes) == 1:
ctx = (location, parsed.scheme, secure_schemes[0],
parsed.netloc)
logger.warn("%s uses an insecure transport scheme (%s). "
"Consider using %s if %s has it available" %
ctx)
elif len(secure_schemes) > 1:
ctx = (location, parsed.scheme, ", ".join(secure_schemes),
parsed.netloc)
logger.warn("%s uses an insecure transport scheme (%s). "
"Consider using one of %s if %s has any of "
"them available" % ctx)
else:
ctx = (location, parsed.scheme)
logger.warn("%s uses an insecure transport scheme (%s)." %
ctx)
found_versions = []
found_versions.extend(
self._package_versions(
# We trust every directly linked archive in find_links
[Link(url, '-f', trusted=True) for url in self.find_links],
req.name.lower()))
page_versions = []
for page in self._get_pages(locations, req):
logger.debug('Analyzing links from page %s' % page.url)
logger.indent += 2
try:
page_versions.extend(
self._package_versions(page.links, req.name.lower()))
finally:
logger.indent -= 2
dependency_versions = list(
self._package_versions(
[Link(url) for url in self.dependency_links],
req.name.lower()))
if dependency_versions:
logger.info('dependency_links found: %s' % ', '.join(
[link.url for parsed, link, version in dependency_versions]))
file_versions = list(
self._package_versions([Link(url) for url in file_locations],
req.name.lower()))
if not found_versions and not page_versions and not dependency_versions and not file_versions:
logger.fatal(
'Could not find any downloads that satisfy the requirement %s'
% req)
if self.need_warn_external:
logger.warn("Some externally hosted files were ignored (use "
"--allow-external %s to allow)." % req.name)
if self.need_warn_unverified:
logger.warn("Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow)." %
req.name)
raise DistributionNotFound('No distributions at all found for %s' %
req)
installed_version = []
if req.satisfied_by is not None:
installed_version = [(req.satisfied_by.parsed_version,
INSTALLED_VERSION, req.satisfied_by.version)]
if file_versions:
file_versions.sort(reverse=True)
logger.info('Local files found: %s' % ', '.join([
url_to_path(link.url)
for parsed, link, version in file_versions
]))
#this is an intentional priority ordering
all_versions = installed_version + file_versions + found_versions + page_versions + dependency_versions
applicable_versions = []
for (parsed_version, link, version) in all_versions:
if version not in req.req:
logger.info("Ignoring link %s, version %s doesn't match %s" %
(link, version, ','.join(
[''.join(s) for s in req.req.specs])))
continue
elif is_prerelease(version) and not (self.allow_all_prereleases
or req.prereleases):
# If this version isn't the already installed one, then
# ignore it if it's a pre-release.
if link is not INSTALLED_VERSION:
logger.info(
"Ignoring link %s, version %s is a pre-release (use --pre to allow)."
% (link, version))
continue
applicable_versions.append((parsed_version, link, version))
applicable_versions = self._sort_versions(applicable_versions)
existing_applicable = bool([
link for parsed_version, link, version in applicable_versions
if link is INSTALLED_VERSION
])
if not upgrade and existing_applicable:
if applicable_versions[0][1] is INSTALLED_VERSION:
logger.info(
'Existing installed version (%s) is most up-to-date and satisfies requirement'
% req.satisfied_by.version)
else:
logger.info(
'Existing installed version (%s) satisfies requirement (most up-to-date version is %s)'
% (req.satisfied_by.version, applicable_versions[0][2]))
return None
if not applicable_versions:
logger.fatal(
'Could not find a version that satisfies the requirement %s (from versions: %s)'
% (req, ', '.join([
version for parsed_version, link, version in all_versions
])))
if self.need_warn_external:
logger.warn("Some externally hosted files were ignored (use "
"--allow-external to allow).")
if self.need_warn_unverified:
logger.warn("Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow)." %
req.name)
raise DistributionNotFound(
'No distributions matching the version for %s' % req)
if applicable_versions[0][1] is INSTALLED_VERSION:
# We have an existing version, and its the best version
logger.info(
'Installed version (%s) is most up-to-date (past versions: %s)'
% (req.satisfied_by.version, ', '.join([
version for parsed_version, link, version in
applicable_versions[1:]
]) or 'none'))
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.info(
'Using version %s (newest of versions: %s)' %
(applicable_versions[0][2], ', '.join([
version
for parsed_version, link, version in applicable_versions
])))
selected_version = applicable_versions[0][1]
# TODO: Remove after 1.4 has been released
# if (selected_version.internal is not None
# and not selected_version.internal):
# logger.warn("You are installing an externally hosted file. Future "
# "versions of pip will default to disallowing "
# "externally hosted files.")
# if (selected_version.verifiable is not None
# and not selected_version.verifiable):
# logger.warn("You are installing a potentially insecure and "
# "unverifiable file. Future versions of pip will "
# "default to disallowing insecure files.")
if selected_version._deprecated_regex:
logger.deprecated(
"1.7", "%s discovered using a deprecated method of parsing, "
"in the future it will no longer be discovered" % req.name)
return selected_version
def raise_distnotfound(self, *args, **kw):
raise DistributionNotFound("not found")
def find_requirement(self, req, upgrade):
"""Try to find an InstallationCandidate for req
Expects req, an InstallRequirement and upgrade, a boolean
Returns an InstallationCandidate or None
May raise DistributionNotFound or BestVersionAlreadyInstalled
"""
all_versions = self._find_all_versions(req.name)
# Filter out anything which doesn't match our specifier
_versions = set(
req.specifier.filter(
# We turn the version object into a str here because otherwise
# when we're debundled but setuptools isn't, Python will see
# packaging.version.Version and
# pkg_resources._vendor.packaging.version.Version as different
# types. This way we'll use a str as a common data interchange
# format. If we stop using the pkg_resources provided specifier
# and start using our own, we can drop the cast to str().
[str(x.version) for x in all_versions],
prereleases=(self.allow_all_prereleases
if self.allow_all_prereleases else None),
))
applicable_versions = [
# Again, converting to str to deal with debundling.
x for x in all_versions if str(x.version) in _versions
]
if req.satisfied_by is not None:
# Finally add our existing versions to the front of our versions.
applicable_versions.insert(
0,
InstallationCandidate(
req.name,
req.satisfied_by.version,
INSTALLED_VERSION,
))
existing_applicable = True
else:
existing_applicable = False
applicable_versions = self._sort_versions(applicable_versions)
if not upgrade and existing_applicable:
if applicable_versions[0].location is INSTALLED_VERSION:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
req.satisfied_by.version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
req.satisfied_by.version,
applicable_versions[0][2],
)
return None
if not applicable_versions:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)', req, ', '.join(
sorted(
set(str(i.version) for i in all_versions),
key=parse_version,
)))
if self.need_warn_external:
logger.warning(
"Some externally hosted files were ignored as access to "
"them may be unreliable (use --allow-external %s to "
"allow).",
req.name,
)
if self.need_warn_unverified:
logger.warning(
"Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow).",
req.name,
)
raise DistributionNotFound(
'No matching distribution found for %s' % req)
if applicable_versions[0].location is INSTALLED_VERSION:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: '
'%s)',
req.satisfied_by.version,
', '.join(str(i.version) for i in applicable_versions[1:])
or "none",
)
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.debug(
'Using version %s (newest of versions: %s)',
applicable_versions[0].version,
', '.join(str(i.version) for i in applicable_versions))
selected_version = applicable_versions[0].location
if (selected_version.verifiable is not None
and not selected_version.verifiable):
logger.warning(
"%s is potentially insecure and unverifiable.",
req.name,
)
return selected_version
def find_requirement(self, req, upgrade):
def mkurl_pypi_url(url):
loc = posixpath.join(url, url_name)
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's
# behavior.
if not loc.endswith('/'):
loc = loc + '/'
return loc
url_name = req.url_name
# Only check main index if index URL is given:
main_index_url = None
if self.index_urls:
# Check that we have the url_name correctly spelled:
main_index_url = Link(
mkurl_pypi_url(self.index_urls[0]),
trusted=True,
)
page = self._get_page(main_index_url, req)
if page is None and PyPI.netloc not in str(main_index_url):
warnings.warn(
"Failed to find %r at %s. It is suggested to upgrade "
"your index to support normalized names as the name in "
"/simple/{name}." % (req.name, main_index_url),
RemovedInPip8Warning,
)
url_name = self._find_url_name(
Link(self.index_urls[0], trusted=True), url_name,
req) or req.url_name
if url_name is not None:
locations = [mkurl_pypi_url(url)
for url in self.index_urls] + self.find_links
else:
locations = list(self.find_links)
file_locations, url_locations = self._sort_locations(locations)
_flocations, _ulocations = self._sort_locations(self.dependency_links)
file_locations.extend(_flocations)
# We trust every url that the user has given us whether it was given
# via --index-url or --find-links
locations = [Link(url, trusted=True) for url in url_locations]
# We explicitly do not trust links that came from dependency_links
locations.extend([Link(url) for url in _ulocations])
logger.debug('URLs to search for versions for %s:', req)
for location in locations:
logger.debug('* %s', location)
self._validate_secure_origin(logger, location)
found_versions = []
found_versions.extend(
self._package_versions(
# We trust every directly linked archive in find_links
[Link(url, '-f', trusted=True) for url in self.find_links],
req.name.lower()))
page_versions = []
for page in self._get_pages(locations, req):
logger.debug('Analyzing links from page %s', page.url)
with indent_log():
page_versions.extend(
self._package_versions(page.links, req.name.lower()))
dependency_versions = list(
self._package_versions(
[Link(url) for url in self.dependency_links],
req.name.lower()))
if dependency_versions:
logger.debug(
'dependency_links found: %s', ', '.join(
[link.url for p, link, version in dependency_versions]))
file_versions = list(
self._package_versions([Link(url) for url in file_locations],
req.name.lower()))
if (not found_versions and not page_versions
and not dependency_versions and not file_versions):
logger.critical(
'Could not find any downloads that satisfy the requirement %s',
req,
)
if self.need_warn_external:
logger.warning(
"Some externally hosted files were ignored as access to "
"them may be unreliable (use --allow-external %s to "
"allow).",
req.name,
)
if self.need_warn_unverified:
logger.warning(
"Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow).",
req.name,
)
raise DistributionNotFound('No distributions at all found for %s' %
req)
installed_version = []
if req.satisfied_by is not None:
installed_version = [
InstallationCandidate(
req.name,
req.satisfied_by.version,
INSTALLED_VERSION,
),
]
if file_versions:
file_versions.sort(reverse=True)
logger.debug(
'Local files found: %s', ', '.join([
url_to_path(candidate.location.url)
for candidate in file_versions
]))
# This is an intentional priority ordering
all_versions = (file_versions + found_versions + page_versions +
dependency_versions)
# Filter out anything which doesn't match our specifier
_versions = set(
req.specifier.filter(
[x.version for x in all_versions],
prereleases=(self.allow_all_prereleases
if self.allow_all_prereleases else None),
))
all_versions = [x for x in all_versions if x.version in _versions]
# Finally add our existing versions to the front of our versions.
applicable_versions = installed_version + all_versions
applicable_versions = self._sort_versions(applicable_versions)
existing_applicable = any(i.location is INSTALLED_VERSION
for i in applicable_versions)
if not upgrade and existing_applicable:
if applicable_versions[0].location is INSTALLED_VERSION:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
req.satisfied_by.version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
req.satisfied_by.version,
applicable_versions[0][2],
)
return None
if not applicable_versions:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)', req, ', '.join(
sorted(
set(str(i.version) for i in all_versions),
key=parse_version,
)))
if self.need_warn_external:
logger.warning(
"Some externally hosted files were ignored as access to "
"them may be unreliable (use --allow-external to allow).")
if self.need_warn_unverified:
logger.warning(
"Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow).",
req.name,
)
raise DistributionNotFound(
'No distributions matching the version for %s' % req)
if applicable_versions[0].location is INSTALLED_VERSION:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: ',
'%s)',
req.satisfied_by.version,
', '.join(str(i.version) for i in applicable_versions[1:])
or "none",
)
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.debug(
'Using version %s (newest of versions: %s)',
applicable_versions[0].version,
', '.join(str(i.version) for i in applicable_versions))
selected_version = applicable_versions[0].location
if (selected_version.verifiable is not None
and not selected_version.verifiable):
logger.warning(
"%s is potentially insecure and unverifiable.",
req.name,
)
if selected_version._deprecated_regex:
warnings.warn(
"%s discovered using a deprecated method of parsing, in the "
"future it will no longer be discovered." % req.name,
RemovedInPip7Warning,
)
return selected_version
def find_requirement(self, req, upgrade):
"""Try to find an InstallationCandidate for req
Expects req, an InstallRequirement and upgrade, a boolean
Returns an InstallationCandidate or None
May raise DistributionNotFound or BestVersionAlreadyInstalled
"""
all_versions = self._find_all_versions(req.name)
# Filter out anything which doesn't match our specifier
_versions = set(
req.specifier.filter(
[x.version for x in all_versions],
prereleases=(self.allow_all_prereleases
if self.allow_all_prereleases else None),
))
applicable_versions = [
x for x in all_versions if x.version in _versions
]
if req.satisfied_by is not None:
# Finally add our existing versions to the front of our versions.
applicable_versions.insert(
0,
InstallationCandidate(
req.name,
req.satisfied_by.version,
INSTALLED_VERSION,
))
existing_applicable = True
else:
existing_applicable = False
applicable_versions = self._sort_versions(applicable_versions)
if not upgrade and existing_applicable:
if applicable_versions[0].location is INSTALLED_VERSION:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
req.satisfied_by.version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
req.satisfied_by.version,
applicable_versions[0][2],
)
return None
if not applicable_versions:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)', req, ', '.join(
sorted(
set(str(i.version) for i in all_versions),
key=parse_version,
)))
if self.need_warn_external:
logger.warning(
"Some externally hosted files were ignored as access to "
"them may be unreliable (use --allow-external %s to "
"allow).",
req.name,
)
if self.need_warn_unverified:
logger.warning(
"Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow).",
req.name,
)
raise DistributionNotFound(
'No matching distribution found for %s' % req)
if applicable_versions[0].location is INSTALLED_VERSION:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: '
'%s)',
req.satisfied_by.version,
', '.join(str(i.version) for i in applicable_versions[1:])
or "none",
)
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.debug(
'Using version %s (newest of versions: %s)',
applicable_versions[0].version,
', '.join(str(i.version) for i in applicable_versions))
selected_version = applicable_versions[0].location
return selected_version
def test_version_nonexisting():
# v0.404 does not exist in index
with ShouldRaise(
DistributionNotFound(
'No matching distribution found for wheel==0.404')):
JohnnyDist('wheel==0.404')
