Include the requirements for [mypy,lint] in [dev] (#11034)

README.rst

@@ -298,7 +298,7 @@ to install using pip and a virtualenv::
 
     python3 -m venv ./env
     source ./env/bin/activate
-    pip install -e ".[all,test]"
+    pip install -e ".[all,dev]"
 
 This will run a process of downloading and installing all the needed
 dependencies into a virtual env. If any dependencies fail to install,

changelog.d/11034.misc

@@ -0,0 +1 @@
+When installing the optional developer dependencies, also include the dependencies needed for type-checking and unit testing.

docs/development/contributing_guide.md

@@ -50,7 +50,7 @@ setup a *virtualenv*, as follows:
 cd path/where/you/have/cloned/the/repository
 python3 -m venv ./env
 source ./env/bin/activate
-pip install -e ".[all,lint,mypy,test]"
+pip install -e ".[all,dev]"
 pip install tox
 ```
 

setup.py

@@ -103,15 +103,6 @@ def exec_file(path_segments):
     "flake8",
 ]
 
-CONDITIONAL_REQUIREMENTS["dev"] = CONDITIONAL_REQUIREMENTS["lint"] + [
-    # The following are used by the release script
-    "click==7.1.2",
-    "redbaron==0.9.2",
-    "GitPython==3.1.14",
-    "commonmark==0.9.1",
-    "pygithub==1.55",
-]
-
 CONDITIONAL_REQUIREMENTS["mypy"] = [
     "mypy==0.910",
     "mypy-zope==0.3.2",
@@ -130,6 +121,20 @@ def exec_file(path_segments):
 # parameterized_class decorator was introduced in parameterized 0.7.0
 CONDITIONAL_REQUIREMENTS["test"] = ["parameterized>=0.7.0"]
 
+CONDITIONAL_REQUIREMENTS["dev"] = (
+    CONDITIONAL_REQUIREMENTS["lint"]
+    + CONDITIONAL_REQUIREMENTS["mypy"]
+    + CONDITIONAL_REQUIREMENTS["test"]
+    + [
+        # The following are used by the release script
+        "click==7.1.2",
+        "redbaron==0.9.2",
+        "GitPython==3.1.14",
+        "commonmark==0.9.1",
+        "pygithub==1.55",
+    ]
+)
+
 setup(
     name="matrix-synapse",
     version=version,