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pythonvimmacvim

Errors editing python with Vim

When I edit a python file in Vim (using MacVim), and I press o to insert a new line, Vim throws the following errors:

Error detected while processing function <SNR>20_CheckAlign..GetPythonIndent:
line   30:
E121: Undefined variable: dummy
Press ENTER or type command to continue
Error detected while processing function <SNR>20_CheckAlign..GetPythonIndent:
line   30:
E15: Invalid expression: line('.') < 7 ? dummy : synIDattr(synID(line('.'), col('.')
, 1), 'name') =~ '\(Comment\|String\)$'

How do I fix this?

Solution

  • I figured out the problem. It was throwing an error whenever the file's tab settings were different from the editor's tab settings. For example, my test.py file was set to 2 spaces per tab, with tabs expanded into spaces, whereas my editor was set to 4 spaces per tab, no expand.

    So the solution workaround was to set Vim's tab settings to the settings of the python file being edited.