Table of Contents

• Topics
  • flycheck reports errors which are not caused when excuting the linter as a shell command
• How-to
  • Debug syntax checkers

Topics

flycheck reports errors which are not caused when excuting the linter as a shell command

flake8 complains an undefined name on the editor. The weird thing was, there's nothing when I manually execute flake8 on the shell.

By using flycheck-compile, I found out that flycheck tries to use stdin for all checker.

In other words, flycheck always lose its context. That was the problem. But there was no way I could fix it. So I concluded to slightly modify the flycheck-only-error causing line.

How-to

Debug syntax checkers

M-x flycheck-compile will print the actual command that Flycheck uses.