Pyflakes + pep8 check on vim in normal mode

Question

I use vim as my IDE with python and it's been great. I use pyflakes + pep8 with the appropriate plugin. I need these additional features:

1. pyflakes check "on the fly" without having to switch to normal mode.
2. pep8 check "on the fly". Currently, I have mapped 'F6' to do pep8 check and a quickfix window pops up. I want pep8 to be done the same way as pyflakes, but in normal mode.
3. Highlights for pep8 and pyflakes must be different.

Thanks

Answer 1

Checking with pyflakes on the fly

• pyflakes-pathogen lets you check on the fly (same as pyflakes but works with pathogen).

You can autorun pep8+pyflakes on write with flake8

• flake8 can highlight pep8 and pyflakes errors on write. (possibly on the fly?). Plus, you can set a list of errors to ignore (for example, the pep8 error about how to define variable names).

Unfortunately, I don't know if anyone's written a pep8 checker on the fly. Maybe not enough demand?