Python emacs syntax checking
The pyempt package is a python emacs package for type checking and other syntax analysis. It is basically a simple wrapper around other python syntax checkers to simplify the process of calling pylint, pep8, etc. from something like emacs flymake.
In principle, you could do all of this with a a few simple scripts. It’s nice being able to pip install something that works and collaborate on improvements, however, and that is what pyempt is for.
To install pyempt, first do something like pip install pyempt or sudo pip install pyempt. Then add something like the following to your ~/.emacs file to run pyempt.
(when (load "flymake" t) (defun flymake-pyempt-init () (let* ((temp-file (flymake-init-create-temp-buffer-copy 'flymake-create-temp-inplace)) (local-file (file-relative-name temp-file (file-name-directory buffer-file-name)))) (list "pyempt" (list local-file)))) (add-to-list 'flymake-allowed-file-name-masks '("\\.py\\'" flymake-pyempt-init))) (add-to-list 'flymake-allowed-file-name-masks '("\\.py\\'" flymake-pyempt-init)) ;; Uncomment following line if you want flymake to start on file load ;;(add-hook 'find-file-hook 'flymake-find-file-hook)
After you restart emacs or reload your init file, flymake should automatically start and call pyempt.
If you have installed pyempt and setup emacs to use it in flymake, there isn’t anything you need to do to use pyempt. Instead, it will run automatically inside emacs.
If you want to run it from the command line, you can type
to see options and usage instructions or type
to run checks on everything in a given path.
Since pyempt will return a non-zero exit code if any of its checkers returns a non-zero code, you can simply check the return value of pyempt in build scripts or continuous integration tools.
If you have problems, the first thing to do is to try and run pyempt manually via something like
You can turn on logging via
pyempt <FILE_TO_CHECK> --log_level 0
You can get further help on the command line program via
If you want to fork pyempt, you may find the following useful:
- The README.md file is the main file. Generate the rst version via something like pandoc README.md -t rst > README.rst
- Upload to pypi via something like make pypi provided you have your ~/.pypirc setup correctly.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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