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Problems with some characters: [ ] { } ... #1606
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It's a python-3.13.3 issue... when launched from a dos console
Reacted by Giorgio De NunzioThe issue was raised on cpython, already resolved I think on 3.14.0b1.
So either you launch python repl from the powershell console, either you wait python 3.13.4Reacted by Giorgio De NunzioMaybe it was OK on python-3.13.2 , also
Reacted by Giorgio De Nunziofix for upcoming python-3.13.4: python/cpython#133460
issue was raised April 13th 2025 (only): python/cpython#132439
Reacted by Giorgio De NunzioDear stonebig,
Thank you very much for your reply! So I had the “luck” of choosing version 3.13 😄
After reading your answer:- I tried launching WinPython Powershell Prompt.exe and then calling Python, but the problem is still there.
- I also tried using the installed version by opening PowerShell and calling C:\Users\giorg\AppData\Local\Programs\Python\Python313\python.exe directly from the command line, but the issue persists.
Anyway, it’s not a big problem for now: I’ll simply download an older version and wait for 3.14.
Thanks again!
Best regards,
GiorgioReacted by stonebigYou are right, impossible to get it working... shame... so let see, just 7 lines to adjust... in your \python\Lib_pyrepl.py:
I'll do that for b2, but you may two... check lines with
# GH-132439 pull 133460
def get_event(self, block: bool = True) -> Event | None: """Return an Event instance. Returns None if |block| is false and there is no event pending, otherwise waits for the completion of an event.""" if self.event_queue: return self.event_queue.pop() while True: rec = self._read_input(block) if rec is None: return None if rec.EventType == WINDOW_BUFFER_SIZE_EVENT: return Event("resize", "") if rec.EventType != KEY_EVENT or not rec.Event.KeyEvent.bKeyDown: # Only process keys and keydown events if block: continue return None key_event = rec.Event.KeyEvent raw_key = key = key_event.uChar.UnicodeChar if key == "\r": # Make enter unix-like return Event(evt="key", data="\n") # GH-132439 pull 133460 elif key_event.wVirtualKeyCode == 8: # Turn backspace directly into the command key = "backspace" elif key == "\x00": # Handle special keys like arrow keys and translate them into the appropriate command key = VK_MAP.get(key_event.wVirtualKeyCode) if key: if key_event.dwControlKeyState & CTRL_ACTIVE: key = f"ctrl {key}" elif key_event.dwControlKeyState & ALT_ACTIVE: # queue the key, return the meta command self.event_queue.insert(0, Event(evt="key", data=key)) # GH-132439 pull 133460 return Event(evt="key", data="\033") # keymap.py uses this for meta return Event(evt="key", data=key) # GH-132439 pull 133460 if block: continue return None if key_event.dwControlKeyState & ALT_ACTIVE: # queue the key, return the meta command if not key_event.dwControlKeyState & CTRL_ACTIVE: # GH-132439 pull 133460 self.event_queue.insert(0, Event(evt="key", data=key)) # GH-132439 pull 133460 return Event(evt="key", data="\033") # GH-132439 pull 133460 return Event(evt="key", data=key) # GH-132439 pull 133460 def push_char(self, char: int | bytes) -> None:````Reacted by Giorgio De Nunziowaiting 15 days bugs me
Reacted by Giorgio De NunzioCongratulations :-)
Thanks for sharing!
Best,
GiorgioNOT FULLY resolved in b2, binaries at:
Reacted by Giorgio De Nunziowell a=[ 1, 2] works, but not copy/paste of code
So the "hammer" way WAS, is, to just copy from cpython-3.13 branch the inside
lib\_pyreplobject that have changes since less than 2 month.Trying to be smart was stupid
you can download at the same _pyrepl place all the 7 filesmodified since less than 2 month from https://github.com/python/cpython/tree/3.13/Lib/_pyrepl
It works, did check on the copy/past of sudoku code in the console proofing
Wow! When I opened the issue, I didn’t think I’d end up keeping you up at night! :-D
Congratulations!
Giorgionevertheless, copy.paste is wayyyy faster in 3.14 console... so it fixes but it's slow:
- 8 seconds to paste 250 lines on 3.13 patched REPL
- 0.5 second or less on 3.14 REPL
Reacted by Giorgio De Nunziothis is were you see there is way more WORKFORCE than before in cpython
Reacted by Giorgio De Nunzioin 3.13.1 , the copy paste WAS also that slow... and NOT WORKING.
so:
- my patch was maybe correct
- but 3.13.1 to 3.13.3 was not "copy/paste" friendly
- it's really python-3.14.0 improvements
... feeling less stupid, but it was still not smart
Reacted by Giorgio De Nunzioalso, current REPL in 3.14 b1:
- on par with ptpython for copy/paste
- still feels less stable and complete than ptpyhon.... but they stiil backport things, so issues raising may help after b2
the slowness of REPL on copy/past was raised in february... python/cpython#130328
a fix reached 3.14 yesterday python/cpython#134653
not sure the fix will reach 3.13 ... in theory it's more a bug than a feature.as I was already faster when I took the 3.14, I suppose it comes from this that already speed-up things python/cpython#133247
no backport for the slowness problem .... so 3.13 will remain with ptpython when available.
for 3.14, we need to see what 3.14b2 brings in completion.ptpython (and jedi) was a giant leap forward, I hope more of it will integrate the standard over time
wppm -p ptpython ptpython==3.0.29 , appdirs==1.4.4 jedi==0.19.2 >=0.16.0, parso==0.8.4 (<0.9.0,>=0.8.4) prompt-toolkit==3.0.50 <3.1.0,>=3.0.43, wcwidth==0.2.13 pygments==2.19.1
Dear all,
I am getting mad how to figure this out.
Windows 11, Winpython64-3.13.3.0dot.7z.
I run "WinPython Command Prompt.exe".
At the prompt, with my Italian keyboard, I get:
"[" with "Alt Gr" + "è"
"]" with "Alt Gr" + "+"
"{" with "Alt Gr" + "Shift" + "è"
etc
I also get these characters and others with the usual sequences "Alt"+number keyboard, such as "Alt"+1,2,5 for "}", etc
I now enter python's shell by calling "python".
None of these sequences or key combination works anymore:
"Alt Gr" + "è" gives nothing but if I repeat it I get "["
"Alt Gr" + "+" gives nothing
If I want "]" I can do "Alt Gr" + "è" followed by "Alt Gr" + "+"
If I want "{" I can do "Alt Gr" + "è" followed by "Shift" + "Alt Gr" + "è"
If I want "}" I can do "Alt Gr" + "è" followed by "Shift" + "Alt Gr" + "+"
This happens only within python.
What is also strange is that I tried another portable python for Windows, with the same absurd result.
Edit: it also happens with an installable version.
Any hint?
Thanks
Giorgio
giorgio.denunzio@unisalento.it