file=sys.stderr) ^SyntaxError: invalid syntax

$ repo init -u ssh://plustree@sdk.allwinnertech.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml
File "/home/user/tina-v853-open/.repo/repo/main.py", line 79
file=sys.stderr)
^
SyntaxError: invalid syntax

$ curl https://storage.googleapis.com/git-repo-downloads/repo-1 > ./repo
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 29945 100 29945 0 0 66103 0 --:--:-- --:--:-- --:--:-- 66103

$ chmod a+x repo

$ ./repo init -u ssh://plustree@sdk.allwinnertech.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml

... A new version of repo (2.30) is available.
... You should upgrade soon:
cp ******

Your Name [user]: ******
Your Email [******]: ******

Your identity is: plustree <******>
is this correct [y/N]? y

Testing colorized output (for 'repo diff', 'repo status'):
black red green yellow blue magenta cyan white
bold dim ul reverse
Enable color display in this user account (y/N)? y

repo has been initialized in /home/user/tina-v853-open
$ ./repo init -u ssh://plustree@sdk.allwinnertech.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml

... A new version of repo (2.30) is available.
... You should upgrade soon:
cp ******

repo: reusing existing repo client checkout in /home/user/tina-v853-open

repo has been initialized in /home/user/tina-v853-open
(base) user@user:/tina-v853-open$ ls
repo
(base) user@user:/tina-v853-open$ repo sync
File "/home/user/tina-v853-open/.repo/repo/main.py", line 79
file=sys.stderr)
^
SyntaxError: invalid syntax
$ ./repo sync

... A new version of repo (2.30) is available.
... You should upgrade soon:
cp ******

Fetching: 35% (26/74) product/tina/tina-ng/package/allwinner/tina_multimedia_demFetching: 45% (34/74) product/tina/tina-ng/package/allwinne

$ ./repo start devboard-v853-tina-for-awol --all

... A new version of repo (2.30) is available.
... You should upgrade soon:
cp ******