Refresh Python dependencies

Author: mdmintz

requirements.txt

@@ -13,8 +13,6 @@ attrs>=21.2.0
 PyYAML>=6.0;python_version>="3.6"
 traitlets>=4.3.3;python_version<"3.7"
 traitlets>=5.1.1;python_version>="3.7"
-typing-extensions==3.10.0.2;python_version<"3.8"
-typing-extensions>=4.0.0;python_version>="3.8"
 certifi>=2021.10.8
 sortedcontainers==2.4.0
 six==1.16.0
@@ -109,6 +107,7 @@ toml==0.10.2
 Pillow==6.2.2;python_version<"3.5"
 Pillow==7.2.0;python_version>="3.5" and python_version<"3.6"
 Pillow==8.4.0;python_version>="3.6"
+typing-extensions==3.10.0.2;python_version<"3.8"
 rich==10.13.0;python_version>="3.6" and python_version<"4.0"
 tornado==5.1.1;python_version<"3.5"
 tornado==6.1;python_version>="3.5"

setup.py

@@ -129,8 +129,6 @@
         'PyYAML>=6.0;python_version>="3.6"',
         'traitlets>=4.3.3;python_version<"3.7"',
         'traitlets>=5.1.1;python_version>="3.7"',
-        'typing-extensions==3.10.0.2;python_version<"3.8"',  # rich: Python<3.8
-        'typing-extensions>=4.0.0;python_version>="3.8"',
         "certifi>=2021.10.8",
         "sortedcontainers==2.4.0",
         "six==1.16.0",
@@ -225,6 +223,7 @@
         'Pillow==6.2.2;python_version<"3.5"',
         'Pillow==7.2.0;python_version>="3.5" and python_version<"3.6"',
         'Pillow==8.4.0;python_version>="3.6"',
+        'typing-extensions==3.10.0.2;python_version<"3.8"',  # Sync with "rich"
         'rich==10.13.0;python_version>="3.6" and python_version<"4.0"',
         'tornado==5.1.1;python_version<"3.5"',
         'tornado==6.1;python_version>="3.5"',