Add note in README about upgrading setuptools (python-lsp#350)

gatesn · web-flow · commit 1b176dd20228 · 2018-05-17T13:05:16.000+01:00
diff --git a/README.rst b/README.rst
@@ -38,6 +38,10 @@ All optional providers can be installed using:
 
 ``pip install 'python-language-server[all]'``
 
+If you get an error similar to ``'install_requires' must be a string or list of strings`` then please upgrade setuptools before trying again. 
+
+``pip install -U setuptools``
+
 3rd Party Plugins
 ~~~~~~~~~~~~~~~~~
 Installing these plugins will add extra functionality to the language server:
