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Invalid mode 'rU' when realding SystemStatCollector.PROC_STAT_FILENAME #108
Description
Folks, while trying to make pg_view work on my test environment I came accross the following error:
$ python pg_view.py -U postgres -h localhost -d postgres -p 5464
Traceback (most recent call last):
File "/home/vinnix/Sources/Github/pg_view/pg_view/__init__.py", line 266, in main
loop(collectors, consumer, groups, output_method)
File "/home/vinnix/Sources/Github/pg_view/pg_view/__init__.py", line 87, in loop
curses.wrapper(do_loop, groups, output_method, collectors, consumer)
File "/home/vinnix/.pyenv/versions/3.12.9/lib/python3.12/curses/__init__.py", line 94, in wrapper
return func(stdscr, *args, **kwds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/vinnix/Sources/Github/pg_view/pg_view/__init__.py", line 139, in do_loop
process_single_collector(st)
File "/home/vinnix/Sources/Github/pg_view/pg_view/utils.py", line 81, in process_single_collector
st.refresh()
File "/home/vinnix/Sources/Github/pg_view/pg_view/collectors/system_collector.py", line 155, in refresh
stat_data = self._read_proc_stat()
^^^^^^^^^^^^^^^^^^^^^^
File "/home/vinnix/Sources/Github/pg_view/pg_view/collectors/system_collector.py", line 176, in _read_proc_stat
fp = open(SystemStatCollector.PROC_STAT_FILENAME, 'rU')
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid mode: 'rU'
Activity
vinnix commentedon May 24, 2025
Found in this link: https://stackoverflow.com/questions/38093326/whats-the-difference-between-rb-and-ru-in-the-open-function-for-csv that
" As the documentation states, U (Universal Newlines) mode is deprecated; you should not use it anymore. Instead use the newline= keyword argument."
Changing 'rU' to 'r' seems to work.
More tests are necessary to be sure.