Since version 2.4 pylint has support for reading files from memory (stdin) by using the `--from-stdin` cmd line option ``` --from-stdin Interpret the stdin as a python script, whose filename needs to be passed as the module_or_package argument. ``` https://github.com/palantir/python-language-server/blob/143d9931cd0cabe92e1370b344cb02c406e0b0f1/pyls/plugins/pylint_lint.py#L51