syntax error when using f"string {my_var}"

[eAmoeba]

really nice work here on this vimrc. really enjoying the work you put into it.

Would you know how to fix the syntax error when using the new f"string {}" format in python3.6+ I went through all the help pages for pymode and syntastic. I am completly lost. pretty new to vim in general (loving it though, omg my work flow is so much faster now that I learned vim)

can you point me in the right direction or maybe you have a solution?
when I change
let g:pymode_python='python'
to
let g:pymode_python='python3'
I get lots of errors.
Seen here: https://i.imgur.com/gif2Yze.png

Thanks.

[rmk135]

Hi @eAmoeba ,

Well, I don't think there is any easy way to achieve Python 3 support... In fact, ViM can work only with one version of Python (2 or 3, not 2 and 3) - the version of Python that was used for ViM compilation. Basically, if you want to get support of Python 3 syntax - what you should do is to look for a way to get ViM compiled with Python3. Keep in mind, that one ViM distribution could not be compiled with both Python 2 & Python 3 - you need to choose one of them.

What I was doing some time earlier is compiling ViM from sources with Python 3 support and use it in parallel with system ViM with Python 2 support. Basically, I have had two aliases - vimpy2 & vimpy3, regular vim just pointed to system ViM.

I'm not sure what OS do you use, so it's hard to recommend some particular way to make this compilation done. What I was doing on my Mac - just compiling ViM from sources with specifying path to python3-config & some paths to link other libraries.

Finally, you should get something like that (-python +python3):

$ vim --version | grep python
+comments          +libcall           -python            +visualextra
+conceal           +linebreak         +python3           +viminfo

After you done with this - now you should go ahead with changing paths in .vimrc file like you're already doing (e. g. let g:pymode_python='python3', etc...). One more important thing is that I have 2 vimrc's files - one for vimpy2 and another for vimpy3. Particular .vimrc file was specified in appropriate alias like that $ alias vimpy3='vim -u /path/to/custom/.vimrc'.

Thanks a lot for the feedback, I'm really glad that you've found it useful. Hope you will be enjoying ViM even thorough these little complications... :)

Thanks,
Roman

[eAmoeba]

Thank you for the reply,

to answer the OS Question I am on Fedora. Obviously, ViM is pre-installed and so is Python2 and 3.

That's a good push in the right direction. Thank you. I will play around with the solution you suggested. If it worked on your Mac it should be able to get it working on Linux fairly easy. I have no need to write anything currently in Python2. So if I can getting working on 3 I should be good.

I wonder now giving it a thought... neovim. I wonder if it would work directly under that... hmmm...

Again, Thanks for the information and even more thanks for the nice working environment with the vimrc.

[rmk135]

You're welcome, not at all.

I wonder now giving it a thought... neovim. I wonder if it would work directly under that... hmmm...

Try it... I tried it some time ago as well and faced some issues, but I don't remember what were they :) Hopefully you would be more lucky!

Thanks for not hesitating to ask a question!

Have a good one,
Roman

[rmk135]

Closing this issue, please feel free to reopen / add comments if needed.

[eAmoeba]

Thanks for the help I did both. tried neovim and I ran into a few issues, so I compiled vim with:

./configure --with-features=huge --enable-multibyte --enable-python3interp=yes --with-python3-config-dir=/usr/lib/python3.7/config --prefix=/usr/local

Totally works no issues with python 3.7
again. Thanks for the help.

So if anyone else runs into this issue These are the steps I took.
cd ~
git clone https://github.com/vim/vim.git
cd vim
./configure --with-features=huge --enable-multibyte --enable-python3interp=yes --with-python3-config-dir=/usr/lib/python3.7/config --prefix=/usr/local
sudo make install

Appreciate the help!

[rmk135]

Awesome, perfect news! @eAmoeba , thanks for sharing this - I'm sure it will help lots of people!

Roman