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from pip._internal.utils.misc import redact_auth_from_url
class PipToolsError(Exception):
pass
class NoCandidateFound(PipToolsError):
def __init__(self, ireq, candidates_tried, finder):
self.ireq = ireq
self.candidates_tried = candidates_tried
self.finder = finder
def __str__(self):
versions = []
pre_versions = []
for candidate in sorted(self.candidates_tried):
version = str(candidate.version)
if candidate.version.is_prerelease:
pre_versions.append(version)
else:
versions.append(version)
lines = ["Could not find a version that matches {}".format(self.ireq)]
if versions:
lines.append("Tried: {}".format(", ".join(versions)))
if pre_versions:
if self.finder.allow_all_prereleases:
line = "Tried"
else:
line = "Skipped"
line += " pre-versions: {}".format(", ".join(pre_versions))
lines.append(line)
if versions or pre_versions:
lines.append(
"There are incompatible versions in the resolved dependencies:"
)
source_ireqs = getattr(self.ireq, "_source_ireqs", [])
lines.extend(" {}".format(ireq) for ireq in source_ireqs)
else:
redacted_urls = tuple(
redact_auth_from_url(url) for url in self.finder.index_urls
)
lines.append("No versions found")
lines.append(
"{} {} reachable?".format(
"Were" if len(redacted_urls) > 1 else "Was",
" or ".join(redacted_urls),
)
)
return "\n".join(lines)
class IncompatibleRequirements(PipToolsError):
def __init__(self, ireq_a, ireq_b):
self.ireq_a = ireq_a
self.ireq_b = ireq_b
def __str__(self):
message = "Incompatible requirements found: {} and {}"
return message.format(self.ireq_a, self.ireq_b)
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