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I'm surprised I haven't found another issue raised about this, or maybe I missed it.
This is a frequent problem for me. If I am in thebpython shell and try to print out a large data structure, the shell crashes and it is frustrating. The big selling point of entering the shell is to be interactive with the environment, which means sometimes I want to display my data.
In this specific instance, I have a nested list structure. that looks like this
[ ["string","string","string"..], ["string","string","string"..], ...]When I do a bit of debugging
sum([len(y)forxinmy_nested_list[:50]foryinx])
I get36453. So this means the excerpt I'm going to "print" to my screen has 36,453 bytes of characters in it, spread across 30 nested lists.
Inbpython shell, when I simply do
>>> my_nested_list[:50]The shell crashes:
Traceback (most recent call last): File "/path/to/venv/bin/bpython", line 8, in <module> sys.exit(main()) ~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/bpython/curtsies.py", line 245, in main repl.mainloop(True, paste) ~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/path/to/venv/lib64/python3.13/site-packages/bpython/curtsies.py", line 178, in mainloop self.process_event_and_paint(e) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^ File "/path/to/venv/lib64/python3.13/site-packages/bpython/curtsies.py", line 149, in process_event_and_paint scrolled = self.window.render_to_terminal(array, cursor_pos) File "/path/to/venv/lib64/python3.13/site-packages/curtsies/window.py", line 491, in render_to_terminal self.scroll_down() ~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/curtsies/window.py", line 56, in scroll_down with self.t.location(x=0, y=1000000): ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.13/contextlib.py", line 141, in __enter__ return next(self.gen) File "/path/to/venv/lib64/python3.13/site-packages/blessed/terminal.py", line 594, in location self.stream.flush() ~~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/bpython/curtsiesfrontend/repl.py", line 623, in sigwinch_handler cursor_dy = self.get_cursor_vertical_diff() File "/path/to/venv/lib64/python3.13/site-packages/bpython/curtsies.py", line 118, in get_cursor_vertical_diff return self.window.get_cursor_vertical_diff() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/curtsies/window.py", line 398, in get_cursor_vertical_diff cursor_dy += self._get_cursor_vertical_diff_once() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/curtsies/window.py", line 406, in _get_cursor_vertical_diff_once row, col = self.get_cursor_position() ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/curtsies/window.py", line 315, in get_cursor_position return self.t.get_location() ~~~~~~~~~~~~~~~~~~~^^ File "/path/to/venv/lib64/python3.13/site-packages/blessed/terminal.py", line 651, in get_location match = self._query_response( self.u7 or u'\x1b[6n', self.caps['cursor_report'].re_compiled, timeout ) File "/path/to/venv/lib64/python3.13/site-packages/blessed/terminal.py", line 528, in _query_response self.stream.flush() ~~~~~~~~~~~~~~~~~^^RuntimeError: reentrant call inside <_io.BufferedWriter name='<stdout>'>Metadata
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