René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Fatal crash on `usethis tool import-linter` for empty `src` dir","articleBody":"for https://github.com/pypest/pyemu/tree/migrate_uv/pyemu\n\n\u003cdetails\u003e\n\n```\nuvx usethis tool import-linter                                                                                                  \n✔ Adding dependency 'import-linter' to the 'dev' group in 'pyproject.toml'.                                                                                                  \n⚠ Could not find any importable packages.\n⚠ Assuming the package name is pyemu.\n╭──────────────────────────────────────────────────────────────────── Traceback (most recent call last) ────────────────────────────────────────────────────────────────────╮\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_ui\\interface\\tool.py:136 in import_linter                                │\n│                                                                                                                                                                           │\n│   133 │   │   ),                                                                               ╭─────────────── locals ───────────────╮                                   │\n│   134 │   │   files_manager(),                                                                 │ backend = \u003cBackendEnum.auto: 'auto'\u003e │                                   │\n│   135 │   ):                                                                                   │  frozen = False                      │                                   │\n│ ❱ 136 │   │   _run_tool(use_import_linter, remove=remove, how=how)                             │     how = False                      │                                   │\n│   137                                                                                          │ offline = False                      │                                   │\n│   138                                                                                          │   quiet = False                      │                                   │\n│   139 @app.command(                                                                            │  remove = False                      │                                   │\n│                                                                                                ╰──────────────────────────────────────╯                                   │\n│                                                                                                                                                                           │\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_ui\\interface\\tool.py:339 in _run_tool                                    │\n│                                                                                                                                                                           │\n│   336 │   from usethis.errors import UsethisError                                              ╭──── locals ────╮                                                         │\n│   337 │                                                                                        │    how = False │                                                         │\n│   338 │   try:                                                                                 │ kwargs = {}    │                                                         │\n│ ❱ 339 │   │   caller(remove=remove, how=how, **kwargs)                                         │ remove = False │                                                         │\n│   340 │   except UsethisError as err:                                                          ╰────────────────╯                                                         │\n│   341 │   │   err_print(err)                                                                                                                                              │\n│   342 │   │   raise typer.Exit(code=1) from None                                                                                                                          │\n│                                                                                                                                                                           │\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_core\\tool.py:143 in use_import_linter                                    │\n│                                                                                                                                                                           │\n│   140 │   │   ensure_dep_declaration_file()                                                                                                                               │\n│   141 │   │                                                                                                                                                               │\n│   142 │   │   tool.add_dev_deps()                                                                                                                                         │\n│ ❱ 143 │   │   tool.add_configs()                                                                                                                                          │\n│   144 │   │   if RuffTool().is_used():                                                                                                                                    │\n│   145 │   │   │   RuffTool().apply_rule_config(rule_config)                                                                                                               │\n│   146 │   │   if PreCommitTool().is_used():                                                                                                                               │\n│                                                                                                                                                                           │\n│ ╭─────────────────────────────────────────────────────────────── locals ───────────────────────────────────────────────────────────────╮                                  │\n│ │         how = False                                                                                                                  │                                  │\n│ │      remove = False                                                                                                                  │                                  │\n│ │ rule_config = RuleConfig(selected=[], ignored=[], unmanaged_selected=['INP'], unmanaged_ignored=[], tests_unmanaged_ignored=['INP']) │                                  │\n│ │        tool = \u003cusethis._tool.impl.import_linter.ImportLinterTool object at 0x00000151BFACEFD0\u003e                                       │                                  │\n│ ╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯                                  │\n│                                                                                                                                                                           │\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_tool\\base.py:421 in add_configs                                          │\n│                                                                                                                                                                           │\n│   418 │   │   # In practice, the most common resolution method is \"first\", in which case there                                                                            │\n│   419 │   │   # is only ever one active file; so principles #2 and #3 are not relevant.                                                                                   │\n│   420 │   │                                                                                                                                                               │\n│ ❱ 421 │   │   active_config_file_managers = self.get_active_config_file_managers()                                                                                        │\n│   422 │   │                                                                                                                                                               │\n│   423 │   │   already_added = False  # Only print messages for the first added config item.                                                                               │\n│   424 │   │   for config_item in self.get_config_spec().config_items:                                                                                                     │\n│                                                                                                                                                                           │\n│ ╭──────────────────────────────────────── locals ─────────────────────────────────────────╮                                                                               │\n│ │ self = \u003cusethis._tool.impl.import_linter.ImportLinterTool object at 0x00000151BFACEFD0\u003e │                                                                               │\n│ ╰─────────────────────────────────────────────────────────────────────────────────────────╯                                                                               │\n│                                                                                                                                                                           │\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_tool\\base.py:322 in get_active_config_file_managers                      │\n│                                                                                                                                                                           │\n│   319 │                                                                                                                                                                   │\n│   320 │   def get_active_config_file_managers(self) -\u003e set[KeyValueFileManager]:                                                                                          │\n│   321 │   │   \"\"\"Get relative paths to all active configuration files.\"\"\"                                                                                                 │\n│ ❱ 322 │   │   config_spec = self.get_config_spec()                                                                                                                        │\n│   323 │   │   resolution = config_spec.resolution                                                                                                                         │\n│   324 │   │   return self._get_active_config_file_managers_from_resolution(                                                                                               │\n│   325 │   │   │   resolution,                                                                                                                                             │\n│                                                                                                                                                                           │\n│ ╭──────────────────────────────────────── locals ─────────────────────────────────────────╮                                                                               │\n│ │ self = \u003cusethis._tool.impl.import_linter.ImportLinterTool object at 0x00000151BFACEFD0\u003e │                                                                               │\n│ ╰─────────────────────────────────────────────────────────────────────────────────────────╯                                                                               │\n│                                                                                                                                                                           │\n│ C:\\Users\\namc\\AppData\\Local\\uv\\cache\\archive-v0\\w6T56ykrY7K3wv_iBpmjD\\Lib\\site-packages\\usethis\\_tool\\impl\\import_linter.py:162 in get_config_spec                        │\n│                                                                                                                                                                           │\n│   159 │   │   │   │   contracts.append(contract)                                                                                                                          │\n│   160 │   │                                                                                                                                                               │\n│   161 │   │   if not contracts:                                                                                                                                           │\n│ ❱ 162 │   │   │   raise AssertionError                                                                                                                                    │\n│   163 │   │                                                                                                                                                               │\n│   164 │   │   def get_root_packages() -\u003e list[str] | NoConfigValue:                                                                                                       │\n│   165 │   │   │   # There are two configuration items which are very similar:                                                                                             │\n│                                                                                                                                                                           │\n│ ╭───────────────────────────────────────────────────────────── locals ──────────────────────────────────────────────────────────────╮                                     │\n│ │                                      contracts = []                                                                               │                                     │\n│ │                 layered_architecture_by_module = {}                                                                               │                                     │\n│ │ layered_architecture_by_module_by_root_package = {'pyemu': {}}                                                                    │                                     │\n│ │                                      min_depth = 0                                                                                │                                     │\n│ │                                           self = \u003cusethis._tool.impl.import_linter.ImportLinterTool object at 0x00000151BFACEFD0\u003e │                                     │\n│ ╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯                                     │\n╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯\nAssertionError\n```\n\n\u003c/details\u003e","author":{"url":"https://github.com/nathanjmcdougall","@type":"Person","name":"nathanjmcdougall"},"datePublished":"2025-12-23T05:31:12.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/1226/usethis-python/issues/1226"}