Merge pull request #6889 from adrianeboyd/docs/source-install-dup [ci skip]

README.md

@@ -253,20 +253,14 @@ source .env/bin/activate
 # make sure you are using the latest pip
 python -m pip install -U pip setuptools wheel
 
-pip install .
+pip install -r requirements.txt
+pip install --no-build-isolation --editable .
 ```
 
 To install with extras:
 
 ```bash
-pip install .[lookups,cuda102]
+pip install --no-build-isolation --editable .[lookups,cuda102]
-```
-
-To install all dependencies required for development, use the [`requirements.txt`](requirements.txt). Compared to regular install via pip, it
-additionally installs developer dependencies such as Cython.
-
-```bash
-pip install -r requirements.txt
 ```
 
 ## 🚦 Run tests

website/docs/usage/index.md

@@ -170,26 +170,17 @@ $ git clone https://github.com/explosion/spaCy  # clone spaCy
 $ cd spaCy                                      # navigate into dir
 $ python -m venv .env                           # create environment in .env
 $ source .env/bin/activate                      # activate virtual env
-$ pip install .                                 # compile and install spaCy
+$ pip install -r requirements.txt               # install requirements
+$ pip install --no-build-isolation --editable . # compile and install spaCy
 ```
 
 To install with extras:
 
 ```bash
-$ pip install .[lookups,cuda102]                # install spaCy with extras
+$ pip install --no-build-isolation --editable .[lookups,cuda102]
 ```
 
-To install all dependencies required for development:
+How to install compilers and related build tools:
-
-```bash
-$ pip install -r requirements.txt
-```
-
-Compared to a regular install via pip, the
-[`requirements.txt`](%%GITHUB_SPACY/requirements.txt) additionally includes
-developer dependencies such as Cython and the libraries required to run the test
-suite. See the [quickstart widget](#quickstart) to get the right commands for
-your platform and Python version.
 
 <a id="source-ubuntu"></a><a id="source-osx"></a><a id="source-windows"></a>
 
@@ -227,7 +218,7 @@ source code and recompiling frequently.
   ```bash
   $ pip install -r requirements.txt
   $ python setup.py build_ext --inplace -j N
-  $ pip install --no-build-isolation --editable .
+  $ python setup.py develop
   ```
 
 ### Building an executable {#executable}
@@ -264,36 +255,6 @@ You can configure the build process with the following environment variables:
 | `PYVER`        | The Python version to build against. This version needs to be available on your build and runtime machines. Defaults to `3.6`.                                                                              |
 | `WHEELHOUSE`   | Directory to store the wheel files during compilation. Defaults to `./wheelhouse`.                                                                                                                          |
 
-#### Additional options for developers {#source-developers}
-
-Some additional options may be useful for spaCy developers who are editing the
-source code and recompiling frequently.
-
-- Install in editable mode. Changes to `.py` files will be reflected as soon as
-  the files are saved, but edits to Cython files (`.pxd`, `.pyx`) will require
-  the `pip install` or `python setup.py build_ext` command below to be run
-  again. Before installing in editable mode, be sure you have removed any
-  previous installs with `pip uninstall spacy`, which you may need to run
-  multiple times to remove all traces of earlier installs.
-
-  ```diff
-    pip install -U pip setuptools wheel
-  - pip install .
-  + pip install -r requirements.txt
-  + pip install --no-build-isolation --editable .
-  ```
-
-- Build in parallel using `N` CPUs to speed up compilation and then install in
-  editable mode:
-
-  ```diff
-    pip install -U pip setuptools wheel
-  - pip install .
-  + pip install -r requirements.txt
-  + python setup.py build_ext --inplace -j N
-  + python setup.py develop
-  ```
-
 ### Run tests {#run-tests}
 
 spaCy comes with an [extensive test suite](%%GITHUB_SPACY/spacy/tests). In order