Pin pip < 20.3 (#43771)

.github/workflows/ci.yaml

@@ -48,7 +48,7 @@ jobs:
         run: |
           python -m venv venv
           . venv/bin/activate
-          pip install -U pip setuptools
+          pip install -U "pip<20.3" setuptools
           pip install -r requirements.txt -r requirements_test.txt
       - name: Restore pre-commit environment from cache
         id: cache-precommit
@@ -611,7 +611,7 @@ jobs:
         run: |
           python -m venv venv
           . venv/bin/activate
-          pip install -U pip setuptools wheel
+          pip install -U "pip<20.3" setuptools wheel
           pip install -r requirements_all.txt
           pip install -r requirements_test.txt
           pip install -e .

homeassistant/package_constraints.txt

@@ -20,7 +20,7 @@ jinja2>=2.11.2
 netdisco==2.8.2
 paho-mqtt==1.5.1
 pillow==7.2.0
-pip>=8.0.3
+pip>=8.0.3,<20.3
 python-slugify==4.0.1
 pytz>=2020.1
 pyyaml==5.3.1

requirements.txt

@@ -13,7 +13,7 @@ importlib-metadata==1.6.0;python_version<'3.8'
 jinja2>=2.11.2
 PyJWT==1.7.1
 cryptography==3.2
-pip>=8.0.3
+pip>=8.0.3,<20.3
 python-slugify==4.0.1
 pytz>=2020.1
 pyyaml==5.3.1

setup.py

@@ -45,7 +45,7 @@ REQUIRES = [
     "PyJWT==1.7.1",
     # PyJWT has loose dependency. We want the latest one.
     "cryptography==3.2",
-    "pip>=8.0.3",
+    "pip>=8.0.3,<20.3",
     "python-slugify==4.0.1",
     "pytz>=2020.1",
     "pyyaml==5.3.1",