pin typing-extensions<4.2 to fix st2client install

st2client requires importlib-metadata which requires typing-extensions. But typing-extensions v4.2.0 dropped support for python3.6, so pin it.
StackStorm · May 4, 2022 · 9800b94 · 9800b94
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -202,6 +202,9 @@ Changed
 
 * Bump black to v22.3.0 - This is  used internally to reformat our python code. #5606
 
+* Pin ``typing-extensions<4.2`` (used indirectly by st2client) to maintain python 3.6 support. #5638
+
+
 3.6.0 - October 29, 2021
 ------------------------
 

diff --git a/fixed-requirements.txt b/fixed-requirements.txt
@@ -60,6 +60,8 @@ argparse==1.12.2
 argcomplete==1.12.2
 prettytable==2.1.0
 importlib-metadata==3.10.1
+# importlib-metadata requires typing-extensions but v4.2.0 requires py3.7+
+typing-extension<4.2
 # NOTE: sseclient has various issues which sometimes hang the connection for a long time, etc.
 sseclient-py==1.7
 stevedore==1.30.1

diff --git a/st2client/in-requirements.txt b/st2client/in-requirements.txt
@@ -1,5 +1,7 @@
 # Remember to list implicit packages here, otherwise version won't be fixated!
 importlib-metadata
+# importlib-metadata requires typing-extensions
+typing-extensions
 argcomplete
 prettytable
 pytz