Nope, we still need to upgrade setuptools at least. Try not eager.

appveyor.yml

@@ -158,7 +158,7 @@ after_test:
   # https://ci.appveyor.com/project/denik/gevent/builds/23810605/job/83aw4u67artt002b#L602
   # So we violate DRY and repeate some requirements in order to use
   # --no-build-isolation
-  - "%CMD_IN_ENV% %PYEXE% -m pip install pycparser wheel cython setuptools cffi"
+  - "%CMD_IN_ENV% %PYEXE% -m pip install -U pycparser wheel cython setuptools cffi"
   - "%CMD_IN_ENV% %PYEXE% -m pip wheel --no-build-isolation . -w dist"
   - ps: "ls dist"
 

docs/development.rst

@@ -7,18 +7,12 @@
 
     Things to include:
 
+    - Writing tests and the gevent test framework:
       - Avoiding hard test dependencies.
     - Resource usage.
     - Custom commands in ``setup.py``
 
 
-To install the latest development version::
-
-  pip install git+git://github.com/gevent/gevent.git#egg=gevent
-
-.. note::
-
-   You will not be able to run gevent's test suite using that method.
 
 To hack on gevent (using a virtualenv)::
 

docs/installing_from_source.rst

@@ -35,6 +35,19 @@ General Notes
   build dependencies, including CFFI (needed for libuv support). pip
   18 or above is required for this support.
 
+- You can use pip's `VCS support
+  <https://pip.pypa.io/en/stable/reference/pip_install/#vcs-support>`_
+  to install gevent directly from its code repository. This can be
+  useful to check if a bug you're experiencing has been fixed. For
+  example, to install the current development version::
+
+    pip install git+git://github.com/gevent/gevent.git#egg=gevent
+
+  Often one would install this way into a virtual environment.
+
+  If you're using pip 18 or above, that should be all you need. If you
+  have difficulties, see the development instructions for more information.
+
 
 Common Installation Issues
 ==========================