Refresh Python dependencies

Author: mdmintz

requirements.txt

@@ -2,8 +2,8 @@ pip>=20.3.4;python_version<"3.6"
 pip>=21.3.1;python_version>="3.6"
 packaging>=20.9;python_version<"3.6"
 packaging>=21.2;python_version>="3.6"
-typing-extensions>=3.10.0.2;python_version<"3.6"
-typing-extensions>=4.0.0;python_version>="3.6"
+typing-extensions>=3.10.0.2;python_version<"3.8"
+typing-extensions>=4.0.0;python_version>="3.8"
 setuptools>=44.1.1;python_version<"3.5"
 setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"
 setuptools>=59.1.0;python_version>="3.6"

setup.py

@@ -118,8 +118,8 @@
         'pip>=21.3.1;python_version>="3.6"',
         'packaging>=20.9;python_version<"3.6"',
         'packaging>=21.2;python_version>="3.6"',
-        'typing-extensions>=3.10.0.2;python_version<"3.6"',
-        'typing-extensions>=4.0.0;python_version>="3.6"',
+        'typing-extensions>=3.10.0.2;python_version<"3.8"',  # rich: Python<3.8
+        'typing-extensions>=4.0.0;python_version>="3.8"',
         'setuptools>=44.1.1;python_version<"3.5"',
         'setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"',
         'setuptools>=59.1.0;python_version>="3.6"',