Update installation instructions

Author: lgeiger

README.md

@@ -8,7 +8,7 @@ Python language support for [Atom-IDE](https://ide.atom.io/), powered by the [Py
 
 ## Requirements
 
-[`ide-python`](https://atom.io/packages/ide-python) requires [Atom `1.21+`](https://atom.io/) and the [`atom-ide-ui`](https://atom.io/packages/atom-ide-ui) package to expose the functionality within Atom.
+[`ide-python`](https://atom.io/packages/ide-python) requires [Atom `1.21+`](https://atom.io/), [Python language server 0.17+`](https://github.com/palantir/python-language-server) and the [`atom-ide-ui`](https://atom.io/packages/atom-ide-ui) package to expose the functionality within Atom.
 
 ## Feature Providers
 
@@ -18,16 +18,21 @@ Python language support for [Atom-IDE](https://ide.atom.io/), powered by the [Py
 * [McCabe](https://github.com/PyCQA/mccabe) linter for complexity checking
 * [pycodestyle](https://github.com/PyCQA/pycodestyle) linter for style checking
 * [pydocstyle](https://github.com/PyCQA/pydocstyle) linter for docstring style checking
+* [autopep8](https://github.com/hhatto/autopep8) for code formatting (preferred over YAPF)
 * [YAPF](https://github.com/google/yapf) for code formatting
 
 ## Installation
 
-Install the language server (we recommend version `0.14.0` or newer) with
+### Language Server
+
+Install the language server (we recommend version 0.17.0 or newer) with:
 
 ```bash
-pip install python-language-server
+pip install 'python-language-server[all]'
 ```
 
+This command will install the language server and all supported feature providers, which can be enabled or disabled in the settings. Checkout the [official installation instructions](https://github.com/palantir/python-language-server#installation) on how to install only the providers you need.
+
 Verify that everything is correctly installed and `pyls` is on your `PATH` by running `pyls --help` from the command line.
 It should return
 
@@ -41,11 +46,20 @@ Python Language Server
 
 Depending on your Python setup `pyls` may be installed in a non default folder. In this case either add the directory to your `PATH` or edit the "Python Language Server Path" setting of `ide-python` to point to the `pyls` executable.
 
+### Atom Package
+
+Install `ide-python` and [`atom-ide-ui`](https://atom.io/packages/atom-ide-ui) from _Install_ in Atom's settings or run:
+
+```bash
+apm install atom-ide-ui
+apm install ide-python
+```
+
 ## Configuration
 
 Configuration is loaded from zero or more configuration sources.
 
-* `pycodestyle` (default): discovered in `~/.config/pycodestyle`, `setup.cfg`, `tox.ini` and `pycodestyle.cfg`
+* `pycodestyle`: discovered in `~/.config/pycodestyle`, `setup.cfg`, `tox.ini` and `pycodestyle.cfg`
 * `flake8`: discovered in `~/.config/flake8`, `setup.cfg`, `tox.ini` and `flake8.cfg`
 
 Overall configuration is computed first from user configuration (in home directory), overridden by configuration in the `ide-python` settings, and then overridden by configuration discovered in the current project.

lib/main.js

@@ -63,7 +63,7 @@ class PythonLanguageClient extends AutoLanguageClient {
           }
         ],
         description:
-          "This can occur if you do not have Python installed or if it is not in your path.\n\n Make sure to install `pyls` by running:\n```\npip install python-language-server\n```"
+          "This can occur if you do not have Python installed or if it is not in your path.\n\n Make sure to install `pyls` by running:\n```\npip install 'python-language-server[all]'\n```"
       })
     );
     return childProcess;