flake8 crash on windows-latest with UnicodeEncodeError

[PerchunPak]

Please describe how you installed Flake8

I using github actions run this check

name: Run Tests

on: push

jobs:
  test:
    runs-on: windows-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python 3.9
      uses: actions/setup-python@v2
      with:
        python-version: 3.9
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8
    - name: Additional info
      run: flake8 --bug-report
    - name: Lint with flake8
      run: |
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

(also checked on other version of python, same error)

And I get this tracelog

> Run `flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics`
0
Traceback (most recent call last):
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\hostedtoolcache\windows\Python\3.9.6\x64\Scripts\flake8.exe\__main__.py", line 7, in <module>
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\main\cli.py", line 22, in main
    app.run(argv)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\main\application.py", line 363, in run
    self._run(argv)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\main\application.py", line 352, in _run
    self.report()
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\main\application.py", line 343, in report
    self.report_errors()
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\main\application.py", line 298, in report_errors
    results = self.file_checker_manager.report()
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\checker.py", line 261, in report
    results_reported += self._handle_results(filename, results)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\checker.py", line 159, in _handle_results
    reported_results_count += style_guide.handle_error(
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\style_guide.py", line 424, in handle_error
    return guide.handle_error(
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\style_guide.py", line 579, in handle_error
    self.formatter.handle(error)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\formatting\base.py", line 95, in handle
    self.write(line, source)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\formatting\base.py", line 206, in write
    self._write(line)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\site-packages\flake8\formatting\base.py", line 189, in _write
    print(output, end=self.newline)
  File "c:\hostedtoolcache\windows\python\3.9.6\x64\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 36-40: character maps to <undefined>

Please provide the exact, unmodified output of flake8 --bug-report

{
  "dependencies": [],
  "platform": {
    "python_implementation": "CPython",
    "python_version": "3.9.6",
    "system": "Windows"
  },
  "plugins": [
    {
      "is_local": false,
      "plugin": "mccabe",
      "version": "0.6.1"
    },
    {
      "is_local": false,
      "plugin": "pycodestyle",
      "version": "2.7.0"
    },
    {
      "is_local": false,
      "plugin": "pyflakes",
      "version": "2.3.1"
    }
  ],
  "version": "3.9.2"
}

P.S. Using forked repository from this commit

[asottile]

I believe it's trying to write out your source? which may contain un-encodable characters?

[asottile]

I can't reproduce unfortunately. it works for me

[PerchunPak]

Hmm. Try fork my repo as private and reproduce there

[asottile]

I have your repository cloned at the revision above:

C:\Users\Anthony\workspace\PingerBot>git rev-parse HEAD
db64725bc964213fe2eb0783f23f69ef3236c5b4

C:\Users\Anthony\workspace\PingerBot>venv\Scripts\flake8 --version
3.9.2 (mccabe: 0.6.1, pycodestyle: 2.7.0, pyflakes: 2.3.1) CPython 3.9.0 on Windows

[PerchunPak]

I mean reproduce it with github actions, not localy

[asottile]

hmm ok it reproduces with flake8 ... | cat so it's an io-encoding issue

if you remove --show-source you can probably work around it

[asottile]

can you try the patch in #1382 ?

[PerchunPak]

how i can use it in github actions?

[asottile]

how to pip install from git

[PerchunPak]

yea, it working. thanks