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Known issue: running manage_externals with python 3.8 and later

sacks

Bill Sacks
CSEG and Liaisons
Staff member
Affected release versions: CESM2.1.2 and earlier

When running ./manage_externals/checkout_externals, if the default python version on your machine is python 3.8 or later, you will receive an error message like this:

Code:
Checking status of externals: cam, dictionary keys changed during iteration

To work around this problem, run the following commands from the top level of the CESM directory:

Code:
rm -r manage_externals
git clone -b manic-v1.1.8 https://github.com/ESMCI/manage_externals.git

Then you should be able to run ./manage_externals/checkout_externals without issue.
 
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