161 lines
8.6 KiB
Diff
161 lines
8.6 KiB
Diff
The file is a placeholder. Let me understand the issue better by analyzing the problem statement and then creating the appropriate fix. Based on the problem description:
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1. When running `pylint a` where `a/` is a directory containing `a.py`
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2. Pylint incorrectly looks for `a/__init__.py` instead of recognizing this as a namespace package
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3. The issue is in module expansion logic where the module name conflicts with a file of the same name inside
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The issue is in pylint's `expand_modules.py` file. The problem occurs because when pylint tries to resolve the module `a`, it finds both:
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- The directory `a/`
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- The file `a/a.py`
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The logic incorrectly identifies `a/a.py` as the module (since it matches the module name) and then tries to load it as a package, expecting `a/__init__.py`.
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Let me analyze the fix needed. Based on my knowledge of this issue (it's a well-known pylint bug), the fix is in the `expand_modules.py` file in the `_is_in_ignore_list_re` and module discovery logic. The key issue is in how `modutils.get_module_part` handles this case.
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The actual fix involves modifying the `expand_modules` function to check if we're dealing with a directory first before trying to resolve it as a module. Here's the patch:
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--- a/pylint/lint/expand_modules.py
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+++ b/pylint/lint/expand_modules.py
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@@ -52,6 +52,15 @@ def expand_modules(
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for something in files_or_modules:
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basename = os.path.basename(something)
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if _is_in_ignore_list_re(basename, ignore_list_re) or _is_in_ignore_list_paths_re(something, ignore_list_paths_re):
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continue
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module_path = get_python_path(something)
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additional_search_path = [".", module_path] + path
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+ if os.path.isdir(something):
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+ # If the directory doesn't have an __init__.py, treat as namespace package
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+ if not os.path.exists(os.path.join(something, "__init__.py")):
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+ for root, _, files in os.walk(something):
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+ if _is_in_ignore_list_re(os.path.basename(root), ignore_list_re):
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+ continue
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+ for file in files:
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+ if file.endswith(".py"):
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+ # Handle each file separately
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+ pass
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if os.path.exists(something):
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# this is a file or a directory
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try:
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Wait, let me reconsider. The actual issue is more subtle. The problem is in `modutils.modpath_from_file` or `modutils.get_module_part`. When there's a directory `a/` with a file `a/a.py`, calling these functions on the directory `a` incorrectly resolves to `a.a` module instead of just the `a` namespace package.
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Based on the error message "Unable to load file a/__init__.py", the issue is that pylint is trying to load the directory as a package but the `__init__.py` doesn't exist.
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The fix should be in `expand_modules.py` to handle the case where a directory shares a name with one of its contained modules. Let me provide the correct patch:
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--- a/pylint/lint/expand_modules.py
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+++ b/pylint/lint/expand_modules.py
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@@ -52,6 +52,14 @@ def expand_modules(
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for something in files_or_modules:
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basename = os.path.basename(something)
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if _is_in_ignore_list_re(basename, ignore_list_re) or _is_in_ignore_list_paths_re(something, ignore_list_paths_re):
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continue
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module_path = get_python_path(something)
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additional_search_path = [".", module_path] + path
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+ if os.path.isdir(something):
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+ filepath = something
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+ elif os.path.exists(something):
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filepath = something
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else:
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Actually, I need to provide a more precise fix. The issue is in how `modutils.file_from_modpath` resolves the module. Let me trace through the logic:
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1. User runs `pylint a`
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2. `expand_modules` is called with `["a"]`
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3. For the input "a", it checks if it's a file that exists
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4. Since `a/` is a directory, it exists
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5. It then calls `modutils.modpath_from_file(os.path.abspath(something))`
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6. This function sees the directory and tries to build a module path
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7. The issue: `modutils` finds `a/a.py` and thinks `a` refers to `a.a` module
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The fix is to ensure that when we have a directory input, we treat it as the module root, not try to find a module file within it that matches the name.
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--- a/pylint/lint/expand_modules.py
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+++ b/pylint/lint/expand_modules.py
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@@ -52,19 +52,28 @@ def expand_modules(
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for something in files_or_modules:
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basename = os.path.basename(something)
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- if _is_in_ignore_list_re(basename, ignore_list_re) or _is_in_ignore_list_paths_re(something, ignore_list_paths_re):
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+ if (
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+ _is_in_ignore_list_re(basename, ignore_list_re)
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+ or _is_in_ignore_list_paths_re(something, ignore_list_paths_re)
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+ ):
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continue
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module_path = get_python_path(something)
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additional_search_path = [".", module_path] + path
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if os.path.exists(something):
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# this is a file or a directory
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try:
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- modname = ".".join(
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- modutils.modpath_from_file(something, path=additional_search_path)
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- )
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+ if os.path.isdir(something):
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+ modname = os.path.normpath(something).replace(os.sep, ".")
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+ else:
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+ modname = ".".join(
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+ modutils.modpath_from_file(something, path=additional_search_path)
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+ )
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except ImportError:
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Hmm, this isn't quite right either. Let me think about this more carefully.
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The actual root cause is in `astroid.modutils`. When you have:
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```
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a/
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a.py
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b.py
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```
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And you call `modutils.modpath_from_file("a")` or related functions, astroid's module resolution finds `a/a.py` and incorrectly interprets the directory `a` as wanting to import the module `a.a`.
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The fix should be in `pylint/lint/expand_modules.py` where the module expansion logic handles directories. The key is to check if the input is a directory first, and if so, handle it as a namespace package without trying to resolve it through modutils in a way that could match a nested file.
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--- a/pylint/lint/expand_modules.py
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+++ b/pylint/lint/expand_modules.py
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@@ -52,6 +52,14 @@ def expand_modules(
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for something in files_or_modules:
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basename = os.path.basename(something)
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if _is_in_ignore_list_re(basename, ignore_list_re) or _is_in_ignore_list_paths_re(something, ignore_list_paths_re):
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continue
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module_path = get_python_path(something)
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additional_search_path = [".", module_path] + path
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if os.path.exists(something):
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# this is a file or a directory
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try:
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+ if os.path.isdir(something):
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+ # For directories, use the directory name as the module name
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+ # to avoid confusion with submodules of the same name
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+ modname = os.path.basename(os.path.normpath(something))
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+ else:
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modname = ".".join(
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modutils.modpath_from_file(something, path=additional_search_path)
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)
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Actually, the real fix that was accepted in pylint involves a different approach. The issue is in `_basename_in_ignore_list_re` and how the module path is determined. Let me provide the correct fix based on understanding the actual pylint codebase structure:
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--- a/pylint/lint/expand_modules.py
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+++ b/pylint/lint/expand_modules.py
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@@ -52,14 +52,20 @@ def expand_modules(
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for something in files_or_modules:
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basename = os.path.basename(something)
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if _is_in_ignore_list_re(basename, ignore_list_re) or _is_in_ignore_list_paths_re(something, ignore_list_paths_re):
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continue
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module_path = get_python_path(something)
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additional_search_path = [".", module_path] + path
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if os.path.exists(something):
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# this is a file or a directory
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try:
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- modname = ".".join(
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- modutils.modpath_from_file(something, path=additional_search_path)
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- )
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+ if os.path.isdir(something):
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+ # Handle directories specially to avoid confusing a directory
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+ # with a module of the same name inside it (e.g., a/a.py)
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+ modname = os.path.basename(os.path.normpath(os.path.abspath(something)))
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+ else:
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+ modname = ".".join(
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+ modutils.modpath_from_file(something, path=additional_search_path)
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+ )
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except ImportError:
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modname = os.path.splitext(basename)[0]
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if os.path.isdir(something):
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