pywinpty: Access violation writing 0x0000000000000000 on Windows 7
@jxrossel commented on Wed Oct 04 2017
Description of your problem
When starting spyder, I get an error message with “Terminal server could not be located (…)” and something about starting spyder in debugging mode (which I don’t know how to do).
What steps will reproduce the problem?
- starting spyder
What is the expected output? What do you see instead? error message and no terminal in the consoles
Please provide any additional information below
Versions and main components
- Terminal Version: 0.2.2
- Spyder Version: 3.2.3
- Python Version: python-3.6.2.amd64 (from WinPython, then I just updated spyder and spyder-terminal)
- Operating system: Windows 7
pip list
@andfoy commented on Wed Oct 04 2017
Hi @jxrossel, to start Spyder on debugging mode you must need to set the SPYDER_DEV variable, as it follows, the following commands must be executed from a system terminal, which corresponds to cmd.exe on Windows:
set SPYDER_DEV=True
spyder
After the execution, the file spyder_terminal_err.log must appear on your current working directory, which is this case must be the directory of the current terminal. Please post the contents of this file, so we can help you to trace the error.
@jxrossel commented on Thu Oct 05 2017
Hi, when starting spyder like that, I first had another error message “The Jupyter Notebook server failed to start…” and then the same message as above. The error log doesn’t seem very helpful:
2017-10-05 10:15:14 ETACH-W113024 __main__[8060] INFO Server is now at: 127.0.0.1:8071
2017-10-05 10:15:14 ETACH-W113024 __main__[8060] INFO Shell: C:\Windows\system32\cmd.exe
I then tried to open a new terminal in spyder, and the error log became:
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /?path=C:/Users/rosselj/PythonDev/satemo (127.0.0.1) 4.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/css/ubuntu.css (127.0.0.1) 133.95ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/xterm.css (127.0.0.1) 6.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/addons/fullscreen/fullscreen.css (127.0.0.1) 2.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/css/style.css (127.0.0.1) 3.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/promise-polyfill/promise.js (127.0.0.1) 6.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/fetch/fetch.js (127.0.0.1) 6.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/addons/attach/attach.js (127.0.0.1) 5.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/addons/fit/fit.js (127.0.0.1) 5.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/addons/fullscreen/fullscreen.js (127.0.0.1) 4.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/jquery/dist/jquery.min.js (127.0.0.1) 13.99ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/js/main.js (127.0.0.1) 5.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/components/xterm.js/dist/xterm.js (127.0.0.1) 48.98ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/css/fonts/ubuntumono-regular-webfont.woff2 (127.0.0.1) 5.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 GET /static/css/fonts/ubuntumono-bold-webfont.woff2 (127.0.0.1) 4.00ms
2017-10-05 10:18:05 ETACH-W113024 __main__[8060] INFO CWD: C:/Users/rosselj/PythonDev/satemo
2017-10-05 10:18:05 ETACH-W113024 __main__[8060] INFO Size: (56, 33)
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 POST /api/terminals?cols=56&rows=33 (127.0.0.1) 105.96ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] WARNING 404 GET /favicon.ico (127.0.0.1) 26.99ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 101 GET /terminals/0f5853 (127.0.0.1) 0.00ms
2017-10-05 10:18:05 ETACH-W113024 __main__[8060] INFO WebSocket opened: 0f5853
2017-10-05 10:18:05 ETACH-W113024 __main__[8060] INFO TTY On!
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 POST /api/terminals/0f5853/size?cols=67&rows=31 (127.0.0.1) 4.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 POST /api/terminals/0f5853/size?cols=61&rows=31 (127.0.0.1) 3.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 POST /api/terminals/0f5853/size?cols=67&rows=31 (127.0.0.1) 3.00ms
2017-10-05 10:18:05 ETACH-W113024 tornado.access[8060] INFO 200 POST /api/terminals/0f5853/size?cols=61&rows=31 (127.0.0.1) 3.00ms
The prompt in the terminal doesn’t respond though
@andfoy commented on Thu Oct 05 2017
@jxrossel, can you open a browser tab on the server URL, as shown on the log file? On this case, 127.0.0.1:8071? Does a terminal appears there?
Also, I invite you to open an issue on spyder-notebook if you have notebook-related issues.
@jxrossel commented on Thu Oct 05 2017
Thanks for the answer, but pywinpty v0.2.1 is the last available version on pypi and its the one I have, so I can’t update it…
I’ve stopped doing blind upgrades (with -U) since it tends to break installations (typically when upgrading a package which depends on the upgrade of another compiled package whose compilation fails…). Usually, I do a 2-step upgrade (with -U --no-deps first, then a simple install)
@jxrossel commented on Thu Oct 05 2017
… and I’ve checked the 127.0.0.1:8071 in my browser after opening Spyder. Nothing is shown on that page, but the tab title “OS Web terminal” is displayed (better than nothing, I guess!)
@andfoy commented on Thu Oct 05 2017
@jxrossel Is there any message on the developer Web console?
@jxrossel commented on Thu Oct 05 2017
SCRIPT445: Object doesn't support this action
File: main.js, Line: 11, Column: 1
var promptEvent = new Event('promptReady');
@andfoy commented on Thu Oct 05 2017
@jxrossel Can you test if pywinpty is working as expected? Please post the output of the following commands (From a Python prompt):
from winpty import PTY
# Start a new winpty-agent process of size (cols, rows)
cols, rows = 80, 25
process = PTY(cols, rows)
# Spawn a new console process, e.g., CMD
process.spawn(r'C:\windows\system32\cmd.exe')
# Read console output (Unicode)
process.read()
@jxrossel commented on Thu Oct 05 2017
process.spawn(r'C:\windows\system32\cmd.exe') –> True
process.read()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\PortableSoftware\WinPython3-6\python-3.6.2.amd64\lib\site-packages\winpty\winpty_wrapper.py", line 55, in read
None, None)
OSError: exception: access violation writing 0x0000000000000000
@andfoy commented on Thu Oct 05 2017
@jxrossel Finally an error! Let me check, it seems that this belongs to pywinpty rather than spyder-terminal. However, let me investigate more about it, this is the first instance of such issue.
About this issue
- Original URL
- State: closed
- Created 7 years ago
- Comments: 45 (17 by maintainers)
@nurp Thanks for the report, We’ve just merged a definitive solution for this issue on https://github.com/spyder-ide/pywinpty/issues/108 and we expect to publish a hotfix release today.