unpin cattrs version, restrict python to <=3.9.9

Author: alekseiloginov

python/Pipfile

@@ -26,11 +26,12 @@ tox-pyenv = "*"
 [packages]
 requests = "*"
 attrs = "*"
-cattrs = "==1.1.2"
+cattrs = "*"
 python-dateutil = "*"
 
 [requires]
-python_full_version = "3.8.2"
+# pin python at 3.9.9 due to https://github.com/looker-open-source/sdk-codegen/issues/944
+python_full_version = "3.9.9"
 
 [pipenv]
 # for `black`

python/setup.py

@@ -38,7 +38,6 @@
     "python-dateutil;python_version<'3.7'",
     # Python 3.7+
     "attrs >= 20.1.0;python_version>='3.7'",
-    "cattrs == 1.1.2;python_version>='3.7'",
     "typing-extensions;python_version<'3.8'",
 ]
 
@@ -54,7 +53,8 @@
     name=NAME,
     package_data={"looker_sdk": ["py.typed", "looker_sdk/looker-sample.ini"]},
     packages=find_packages(),
-    python_requires="~=3.6",
+    # restrict python to <=3.9.9 due to https://github.com/looker-open-source/sdk-codegen/issues/944
+    python_requires=">=3.6, <=3.9.9",
     url="https://pypi.python.org/pypi/looker_sdk",
     version=VERSION,
 )