无法设置自定义flake8插件“FailedToLapplugin”

Question

我试图按照教程Building a custom Flake8 plugin \| Dunderdoc学习构建Flake8插件

完成本教程后，我得到了如下设置和检查程序文件：

setup.py

import setuptools

setuptools.setup(
   name='flake8-picky',
   license='MIT',
   version='0.0.1',
   description='Plugin to comply with my picky standards',
   author='Valdir Stumm Junior',
   author_email='stummjr@gmail.com',
   url='http://github.com/stummjr/flake8-picky',
   py_modules=['flake8_picky'],
   entry_points={
       'flake8.extension': [
           'PCK0 = picky_checker:PickyChecker',
       ],
   },
   install_requires=['flake8'],
   classifiers=[
       'Topic :: Software Development :: Quality Assurance',
   ],
)

挑剔的棋盘格.py

import ast


class ForbiddenFunctionsFinder(ast.NodeVisitor):
    forbidden = ['map', 'filter']

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.issues = []

    def visit_Call(self, node):
        if not isinstance(node.func, ast.Name):
            return

        if node.func.id in self.forbidden:
            msg = "PCK01 Please don't use {}()".format(node.func.id)
            self.issues.append((node.lineno, node.col_offset, msg))



class PickyChecker(object):
    options = None
    name = 'picky_checker'
    version = '0.1'

    def __init__(self, tree, filename):
        self.tree = tree
        self.filename = filename

    def run(self):
        parser = ForbiddenFunctionsFinder()
        parser.visit(self.tree)

        for lineno, column, msg in parser.issues:
            yield (lineno, column, msg, PickyChecker)

示例.py

data = list(range(100))

x = map(lambda x: 2 * x, data)
print(x)

y = filter(lambda x: x % 2 == 0, data)
print(y)

成功完成插件安装后，我运行命令flake8 example.py，并出现以下错误：

flake8.exceptions.FailedToLoadPlugin: Flake8 failed to load plugin "PCK0" due to No module named picky_checker.

什么是错误？我如何修复它？谢谢

Answer 1

您的setup.py格式不正确，不包含您选择的软件包

    py_modules=['flake8_picky'],

应该是

    py_modules['picky_checker'],

否则，setuptools将不会在生成/安装的结果包中包含您的模块

---

另一方面，最好的做法是将模块名与包匹配（当然不是必需的），因此我将把模块重命名为flake8_picky.py，而不是更改setup.py）