[issue35274] Running print("\x98") then freeze in Interpreter

[pmpp]

pmpp  added the comment:

anything not using "libvte" is fine 
i suggest you try "mlterm" a very good multilingual terminal

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[issue35274] Running print("\x98") then freeze in Interpreter

[STINNER Victor]

STINNER Victor  added the comment:

I can reproduce the issue on Fedora 29 in gnome-terminal.

Python is not blocked at all. It's just your terminal which stops displaying 
new strings. Try:

import time
print("\x98")
with open("x", "w") as fp:
fp.write("done\n")
fp.flush()
print("wait")
time.sleep(5)
print("exit")

And see file "x" created even after print("\x98").

Sorry, I'm not interested to investigate the terminal behavior.

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nosy: +vstinner
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue35274] Running print("\x98") then freeze in Interpreter

[pmpp]

pmpp  added the comment:

LC_ALL=en_US.UTF-8  on the ssh line is the culprit
unset LC_ALL , gives same lockup result.

but:

LC_ALL=C give sames results as vnc, where no locale was set.

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[issue35274] Running print("\x98") then freeze in Interpreter

[pmpp]

pmpp  added the comment:

hi i can reproduce with a ubuntu bionic or mint19 client toward a python3.4.3 
reached via ssh server:

 - via mate-terminal or terminator  :

same behaviour as OP report


 - meanwhile using the same python3 directly via vnc + xterm gives :


pm / # python3
Python 3.4.3 (default, Nov 12 2018, 22:25:49) 
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print( chr(152) )
Traceback (most recent call last):
  File "", line 1, in 
UnicodeEncodeError: 'ascii' codec can't encode character '\x98' in position 0: 
ordinal not in range(128)
>>>

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nosy: +pmpp

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[issue35274] Running print("\x98") then freeze in Interpreter

[otst]

otst  added the comment:

I used GNOME Terminal 3.28.2.

I tried advised code Gnome Terminal and LXTerminal 0.3.1.
but stop after first time() function.

results:
1542621412.508629 (stop. Control+D later)˜ 1542621412.5086305
1542621412.5087285
>>> 
KeyboardInterrupt
>>> 



Tried change '\x98' to '\x97' results:
1542621365.7332687  1542621365.73327
1542621365.733405



'\x97' is no problem. Perhaps the encoding may be affecting it.
I used UTF-8 on the terminal. I changed the SHIFT_JIS and tried print('\x98'), 
but it did not stop.



As a result of trying a little, what was okay:
SHIFT_JIS
ISO-2022-KR
IBM850
GBK



Also, I am Japanese and my computer is in Japanese environment.

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[issue35274] Running print("\x98") then freeze in Interpreter

[Steven D'Aprano]

Steven D'Aprano  added the comment:

I'm afraid I can't reproduce that in Python 3.5.2 or 3.6.4.

Can you try this?

from time import time
print(time(), '\x98', time()); print(time())

and copy and paste the results.

What terminal/console are you using? If you change to a different console, does 
the problem go away?

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nosy: +steven.daprano

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[issue35274] Running print("\x98") then freeze in Interpreter

[otst]

New submission from otst :

My environment
OS:Ubuntu18.04(x64)
Python:3.6.6


Run print("\x98") in Python3 interpreter then freeze or slow responsed.

Not problem run print '\x98' in Python 2.7.15rc1.

Also no problem for python3 -c "print('\x98');" and run .py file.

--
components: Interpreter Core
messages: 330076
nosy: otst
priority: normal
severity: normal
status: open
title: Running print("\x98") then freeze in Interpreter
type: behavior
versions: Python 3.6

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