Flycheck doesn't return casing errors for Python

[treymerkley]

• What you did, and what you expected to happen instead
  I have pycheckers set up with pylint, pep8, flake8, pyflakes, mypy2, and mypy3. When I run either pylint or flake8 independently, it will return all of the casing issues I have. However, Flycheck doesn't output any of these issues.

• Whether and how you were able to [reproduce the issue in emacs -Q][emacsQ]
  I couldn't get flycheck to run at all in Q, but that's most likely user error.

• Your Flycheck setup from M-x flycheck-verify-setup

Syntax checkers for buffer npc.py in python-mode:

  python-pycheckers
    - may enable:         yes
    - executable:         Found at /home/trey/.emacs.d/elpa/flycheck-pycheckers-20190218.1953/bin/pycheckers.py
    - configuration file: Found at "/home/trey/.pylintrc"

  python-flake8
    - may enable:         yes
    - executable:         Found at /usr/bin/python
    - configuration file: Not found
    - `flake8' module:    Found at "/usr/lib/python3.7/site-packages/flake8/__init__.py"

  python-pylint
    - may enable:         yes
    - executable:         Found at /usr/bin/python
    - configuration file: Found at "/home/trey/.pylintrc"
    - `pylint' module:    Found at "/usr/lib/python3.7/site-packages/pylint/__init__.py"

  python-pycompile
    - may enable: yes
    - executable: Found at /usr/bin/python

  python-mypy
    - may enable:         yes
    - predicate:          t
    - executable:         Found at /usr/bin/mypy
    - configuration file: Not found


The following syntax checkers are not registered:

  - csharp-omnisharp-codecheck

Try adding these syntax checkers to `flycheck-checkers'.  Flycheck
Mode is enabled.  Use C-u C-c ! x to enable disabled checkers.

--------------------

Flycheck version: 32snapshot (package: 20190213.1525)
Emacs version:    26.1
System:           x86_64-pc-linux-gnu
Window system:    x

• Your operating system
  Manjaro Linux, 64-bit, recently updated.

• Your Emacs version from M-x emacs-version
  GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30) of 2018-07-05

• Your Flycheck version from M-x flycheck-version
  Flycheck version: 32snapshot (package: 20190213.1525)

Thanks!

[cpitclaudel]

Thanks for the report. Can you show an input file, and the command line output of the tools?

[treymerkley]

Sure!

File: https://github.com/billywade/yendor/blob/master/yendor/gui/npc.py

Output:

************* Module yendor.gui.npc
npc.py:1:0: C0111: Missing module docstring (missing-docstring)
npc.py:22:8: C0103: Attribute name "speciesComboBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:32:8: C0103: Attribute name "levelComboBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:42:8: C0103: Attribute name "classesComboBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:49:8: C0103: Attribute name "elementsComboBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:59:8: C0103: Attribute name "bossCheckBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:63:8: C0103: Attribute name "generateButton" doesn't conform to snake_case naming style (invalid-name)
npc.py:65:8: C0103: Attribute name "saveButton" doesn't conform to snake_case naming style (invalid-name)
npc.py:74:8: C0103: Attribute name "mainTextBox" doesn't conform to snake_case naming style (invalid-name)
npc.py:104:8: C0103: Attribute name "localLevelString" doesn't conform to snake_case naming style (invalid-name)
npc.py:105:8: C0103: Attribute name "speciesString" doesn't conform to snake_case naming style (invalid-name)
npc.py:106:8: C0103: Attribute name "classesString" doesn't conform to snake_case naming style (invalid-name)
npc.py:107:8: C0103: Attribute name "elementsString" doesn't conform to snake_case naming style (invalid-name)
npc.py:109:12: C0103: Attribute name "bossString" doesn't conform to snake_case naming style (invalid-name)
npc.py:10:0: C0111: Missing class docstring (missing-docstring)
npc.py:10:0: R0902: Too many instance attributes (14/7) (too-many-instance-attributes)
npc.py:15:4: C0111: Missing method docstring (missing-docstring)
npc.py:21:8: C0103: Variable name "speciesComboBoxLabel" doesn't conform to snake_case naming style (invalid-name)
npc.py:23:8: C0103: Variable name "listOfSpecies" doesn't conform to snake_case naming style (invalid-name)
npc.py:31:8: C0103: Variable name "levelComboBoxLabel" doesn't conform to snake_case naming style (invalid-name)
npc.py:41:8: C0103: Variable name "classesComboBoxLabel" doesn't conform to snake_case naming style (invalid-name)
npc.py:43:8: C0103: Variable name "listOfClasses" doesn't conform to snake_case naming style (invalid-name)
npc.py:48:8: C0103: Variable name "elementsComboBoxLabel" doesn't conform to snake_case naming style (invalid-name)
npc.py:50:8: C0103: Variable name "listOfElements" doesn't conform to snake_case naming style (invalid-name)
npc.py:58:8: C0103: Variable name "bossCheckBoxLabel" doesn't conform to snake_case naming style (invalid-name)
npc.py:67:8: C0103: Variable name "bottomButtonsLayout" doesn't conform to snake_case naming style (invalid-name)
npc.py:75:8: C0103: Variable name "textBoxLayout" doesn't conform to snake_case naming style (invalid-name)
npc.py:83:8: C0103: Variable name "controlsLayout" doesn't conform to snake_case naming style (invalid-name)
npc.py:103:4: C0103: Method name "GenerateButtonPressed" doesn't conform to snake_case naming style (invalid-name)
npc.py:103:4: C0111: Missing method docstring (missing-docstring)
npc.py:112:8: C0103: Variable name "resultString" doesn't conform to snake_case naming style (invalid-name)
npc.py:104:8: W0201: Attribute 'localLevelString' defined outside __init__ (attribute-defined-outside-init)
npc.py:105:8: W0201: Attribute 'speciesString' defined outside __init__ (attribute-defined-outside-init)
npc.py:106:8: W0201: Attribute 'classesString' defined outside __init__ (attribute-defined-outside-init)
npc.py:107:8: W0201: Attribute 'elementsString' defined outside __init__ (attribute-defined-outside-init)
npc.py:109:12: W0201: Attribute 'bossString' defined outside __init__ (attribute-defined-outside-init)
npc.py:111:12: W0201: Attribute 'bossString' defined outside __init__ (attribute-defined-outside-init)

------------------------------------------------------------------
Your code has been rated at 4.31/10 (previous run: 4.31/10, +0.00)

[cpitclaudel]

Thanks, this is helpful. Can you see what happens if you select just the python-pylint checker (with M-x flycheck-select-checker)?

[treymerkley]

Okay, so doing that returns the appropriate response. Thanks! It looks like all of the casing errors are all referred to as info-level errors. Is this something I should take up with pycheckers?

[cpitclaudel]

Possibly :)

[treymerkley]

Alright! I'ma call this a Marc thing until I'm told otherwise.