vim setting error under BufRead

Question

Running into a strange issue with my vimrc setting where I isolated to these 2 combination of lines if I use BufRead.

e.g.

au BufRead *.py
    \\ set         


        

Answer 1

please use one set with space separated options:

au BufRead *.py set softtabstop=4 shiftwidth=4

Answer 2

If you want to use multiple set, separate with |:

au BufRead *.py
    \ set softtabstop=4 |
    \ set shiftwidth=4

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