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from collections import defaultdict
from logging import getLogger
from typing import Any, DefaultDict
from pip._vendor.resolvelib.reporters import BaseReporter
from .base import Candidate, Requirement
logger = getLogger(__name__)
class PipReporter(BaseReporter):
def __init__(self) -> None:
self.backtracks_by_package: DefaultDict[str, int] = defaultdict(int)
self._messages_at_backtrack = {
1: (
"pip is looking at multiple versions of {package_name} to "
"determine which version is compatible with other "
"requirements. This could take a while."
),
8: (
"pip is looking at multiple versions of {package_name} to "
"determine which version is compatible with other "
"requirements. This could take a while."
),
13: (
"This is taking longer than usual. You might need to provide "
"the dependency resolver with stricter constraints to reduce "
"runtime. See https://pip.pypa.io/warnings/backtracking for "
"guidance. If you want to abort this run, press Ctrl + C."
),
}
def backtracking(self, candidate: Candidate) -> None:
self.backtracks_by_package[candidate.name] += 1
count = self.backtracks_by_package[candidate.name]
if count not in self._messages_at_backtrack:
return
message = self._messages_at_backtrack[count]
logger.info("INFO: %s", message.format(package_name=candidate.name))
class PipDebuggingReporter(BaseReporter):
"""A reporter that does an info log for every event it sees."""
def starting(self) -> None:
logger.info("Reporter.starting()")
def starting_round(self, index: int) -> None:
logger.info("Reporter.starting_round(%r)", index)
def ending_round(self, index: int, state: Any) -> None:
logger.info("Reporter.ending_round(%r, state)", index)
def ending(self, state: Any) -> None:
logger.info("Reporter.ending(%r)", state)
def adding_requirement(self, requirement: Requirement, parent: Candidate) -> None:
logger.info("Reporter.adding_requirement(%r, %r)", requirement, parent)
def backtracking(self, candidate: Candidate) -> None:
logger.info("Reporter.backtracking(%r)", candidate)
def pinning(self, candidate: Candidate) -> None:
logger.info("Reporter.pinning(%r)", candidate)