Hi Bruce! The latest HEAD in pynfs doesn't run for me: $ ./nfs4.1/testserver.py --help Traceback (most recent call last): File "/home/jlayton/git/pynfs/nfs4.1/./testserver.py", line 38, in <module> import server41tests.environment as environment File "/home/jlayton/git/pynfs/nfs4.1/server41tests/environment.py", line 593 def write_file(sess, file, data, offset=0 stateid=stateid4(0, b''), ^ SyntaxError: invalid syntax If I revert this commit, then it works: commit 49ae5ba83dd98936b3f5c24431a166866b70f34a (HEAD -> master, origin/master, origin/HEAD) Author: J. Bruce Fields <bfields@xxxxxxxxxx> Date: Thu Feb 11 16:22:58 2021 -0500 nfs41: read_file and write_file helpers A couple simple helpers copied from 4.0. Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx> Cheers, -- Jeff Layton <jlayton@xxxxxxxxxx>