more precise exception handling

src/poetry/console/commands/init.py

@@ -413,7 +413,7 @@ You can specify a package in the following forms:
             # TODO: find similar
             raise ValueError(f"Could not find a matching version of package {name}")
 
-        return package.pretty_name, selector.find_recommended_require_version(package)
+        return package.pretty_name, f"^{package.version.to_string()}"
 
     def _parse_requirements(self, requirements: list[str]) -> list[dict[str, Any]]:
         from poetry.core.pyproject.exceptions import PyProjectException

src/poetry/console/commands/version.py

@@ -5,6 +5,7 @@ from typing import Any
 
 from cleo.helpers import argument
 from cleo.helpers import option
+from poetry.core.version.exceptions import InvalidVersion
 from tomlkit.toml_document import TOMLDocument
 
 from poetry.console.commands.command import Command
@@ -95,7 +96,7 @@ patch, minor, major, prepatch, preminor, premajor, prerelease.
 
         try:
             parsed = Version.parse(version)
-        except ValueError:
+        except InvalidVersion:
             raise ValueError("The project's version doesn't seem to follow semver")
 
         if rule in {"major", "premajor"}:

src/poetry/inspection/info.py

@@ -21,6 +21,7 @@ from poetry.core.pyproject.toml import PyProjectTOML
 from poetry.core.utils.helpers import parse_requires
 from poetry.core.utils.helpers import temporary_directory
 from poetry.core.version.markers import InvalidMarker
+from poetry.core.version.requirements import InvalidRequirement
 
 from poetry.utils.env import EnvCommandError
 from poetry.utils.env import ephemeral_environment
@@ -201,12 +202,18 @@ class PackageInfo:
                 dependency = Dependency.create_from_pep_508(req, relative_to=root_dir)
             except InvalidMarker:
                 # Invalid marker, We strip the markers hoping for the best
+                logger.warning(
+                    "Stripping invalid marker (%s) found in %s-%s dependencies",
+                    req,
+                    package.name,
+                    package.version,
+                )
                 req = req.split(";")[0]
                 dependency = Dependency.create_from_pep_508(req, relative_to=root_dir)
-            except ValueError:
-                # Likely unable to parse constraint so we skip it
+            except InvalidRequirement:
+                # Unable to parse requirement so we skip it
                 logger.warning(
-                    "Invalid constraint (%s) found in %s-%s dependencies, skipping",
+                    "Invalid requirement (%s) found in %s-%s dependencies, skipping",
                     req,
                     package.name,
                     package.version,

src/poetry/repositories/link_sources/base.py

@@ -9,6 +9,7 @@ from typing import List
 
 from poetry.core.constraints.version import Version
 from poetry.core.packages.package import Package
+from poetry.core.version.exceptions import InvalidVersion
 
 from poetry.utils._compat import cached_property
 from poetry.utils.patterns import sdist_file_re
@@ -84,7 +85,7 @@ class LinkSource:
         if version_string:
             try:
                 version = Version.parse(version_string)
-            except ValueError:
+            except InvalidVersion:
                 logger.debug(
                     "Skipping url (%s) due to invalid version (%s)", link.url, version
                 )

src/poetry/version/version_selector.py

@@ -2,8 +2,6 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from poetry.core.constraints.version import Version
-
 
 if TYPE_CHECKING:
     from poetry.core.packages.package import Package
@@ -56,14 +54,3 @@ class VersionSelector:
                 package = candidate
 
         return package
-
-    def find_recommended_require_version(self, package: Package) -> str:
-        version = package.version
-
-        return self._transform_version(version.text, package.pretty_version)
-
-    def _transform_version(self, version: str, pretty_version: str) -> str:
-        try:
-            return f"^{Version.parse(version).to_string()}"
-        except ValueError:
-            return pretty_version