Package: pylint
Version: 2.4.4-2
Severity: normal
Dear Maintainer,
pyreverse fails to parse python code that contains dataclasses. It is simple to
reproduce the
problem with a simple python file containing only:
from dataclasses import dataclass
@dataclass
class Data:
a: int
running pyreverse with no option on this file leads to the following error:
parsing pyrevbug.py...
Traceback (most recent call last):
File "/usr/bin/pyreverse", line 11, in <module>
load_entry_point('pylint==2.4.4', 'console_scripts', 'pyreverse')()
File "/usr/lib/python3/dist-packages/pylint/__init__.py", line 37, in
run_pyreverse
PyreverseRun(sys.argv[1:])
File "/usr/lib/python3/dist-packages/pylint/pyreverse/main.py", line 184, in
__init__
sys.exit(self.run(args))
File "/usr/lib/python3/dist-packages/pylint/pyreverse/main.py", line 202, in
run
diadefs = handler.get_diadefs(project, linker)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/diadefslib.py", line
235, in get_diadefs
diagrams = DefaultDiadefGenerator(linker, self).visit(project)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/utils.py", line 217, in
visit
self.visit(local_node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/utils.py", line 217, in
visit
self.visit(local_node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/utils.py", line 214, in
visit
methods[0](node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/diadefslib.py", line
169, in visit_classdef
self.extract_classes(node, anc_level, association_level)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/diadefslib.py", line
113, in extract_classes
self.add_class(klass_node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/diadefslib.py", line
83, in add_class
self.linker.visit(node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/utils.py", line 214, in
visit
methods[0](node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/inspector.py", line
166, in visit_classdef
self.handle_assignattr_type(assignattr, node)
File "/usr/lib/python3/dist-packages/pylint/pyreverse/inspector.py", line
232, in handle_assignattr_type
current = set(parent.instance_attrs_type[node.attrname])
AttributeError: 'Unknown' object has no attribute 'attrname'
Note that pyreverse3 of the buster version of pylint3 works correctly.
Cordially,
Raphaël
-- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.4.0-4-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8),
LANGUAGE=fr:en_GB (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages pylint depends on:
ii python3 3.7.5-3
ii python3-astroid 2.3.3-1
ii python3-isort 4.3.4+ds1-2
ii python3-logilab-common 1.4.3-2
ii python3-mccabe 0.6.1-3
ii python3-setuptools 44.0.0-1
Versions of packages pylint recommends:
ii python3-tk 3.8.2-2
Versions of packages pylint suggests:
ii pylint-doc 2.4.4-2
-- no debconf information
