Enthought Canopy: 'pythonw.exe has stopped working' - python-2.7

I am currently running Enthought Canopy version 1.5.2 full version, through an academic license at a 64bit Windows 7. I was a happy user for a couple months until a 'pythonw.exe has stopped working' issue rendered the software useless. This issue shows up when I open the editor (Ipython+Canopy's GUI) and does not allows me to use the software at all. I have tried the following solutions without luck:
Fresh install deleting several folders manually (https://support.enthought.com/hc/en-us/articles/204469700-Uninstalling-and-resetting-Canopy)
Fresh install+clearing python registry keys under hkeys_user and hkey_system and pythonw.exe related keys into windows regedit.exe (Problems in fully uninstalling Python 2.7 from Windows 7)
My second try actually gave me a false sense of victory, when Canopy worked for a couple hours, until the same issue happened taking all hope with it.
I don't know what to do anymore, any help would be much appreciated.

I had this problem also. And discovered it was due to my windows firewall blocking pythonw.exe
Either turn off the firewall. Or create exceptions for pythonw.exe (but be warned this files occurs in a few different directories. And I'm not sure which one gave the specific issue.
In the end I installed a new firewall (COMODO). And now everything works...

Related

How is Python 2.7 suddenly a Windows security threat?

I have a python 2.7 anaconda environment (I can't upgrade it to python 3 yet, I hope python2 isn't suddenly viewed a security threat). This python was working fine last week. This morning I come in and try to run some python code in it (that I haven't run before, but came from a contractor of ours).
When I ran it I noticed that (I don't think it was a coincidence) Windows suddenly reported a threat:
and now when I run python, I get:
$ python
bash: /home/username/anaconda3/envs/my_env/bin/python: cannot execute binary file: Exec format error
and when I try to disable the quarantine from Windows Security, I still get that same error.
I'm using Ubuntu Windows Subsystem Linux. I've never seen an error like this before.
Does anybody know what might be causing this problem (or how to recover without rebuilding my environment, assuming that would work)?
Update: I deleted that environment, upgraded Anaconda, and rebuilt my environment (python 2.7) from scratch. It appears to be working again, including what I'd tried before that might have triggered the problem.
I also noticed that my "Virus & threat protection updates" had updated itself 30 minutes before this problem started (at 8:23), and it has since updated again (at 9:45). So perhaps some errant security definition?
Support for Python 2.* ended starting with 2020 (EOL)

VSCode "go to definition" not working

I installed Visual Studio Code 1.1 with the C/C++ extension,
opened my C++ project and tried to use "Go to definition" in vain.
The "Go to definition" is not working at all.
Example, go to definition of a class member:
int i = m_myVar;
(I opened a simpler project with one file and it was working for this one)
In the end, what I want is good indexation of my big project, is there a way to install Intellisense?
I had a the same issue: F12 and Ctrl + Click and Right Click "Go To Definition" wasn't working.
The fix for me was:
Go to Extensions
Click "Disable All Installed Extensions"
Close and Reopen VS Code
Back to Extensions and "Enable All Extensions"
Essentially enable/disable all extensions fixed the issue.
I recently came across this same issue and after trying all of the suggested solutions I could find with no success, I found this article:
https://code.visualstudio.com/docs/setup/linux#_visual-studio-code-is-unable-to-watch-for-file-changes-in-this-large-workspace-error-enospc
Basically my project grew too large and VS code was no longer able to track all files, which messed up the "go to definition" functionality.
After following the steps on the link to increase the maximum number of files to be tracked, the issue was resolved.
The correction is pretty simple (tested on Ubuntu 18.04):
Add this line:
fs.inotify.max_user_watches=524288
to the end of the file /etc/sysctl.conf
After saving, run the following command:
sudo sysctl -p
Hopefully this will be useful to someone else, this has been bothering me for the last few days.
I had a similar problem except with Python and google searches for solutions kept bringing me back to this post so I figured I'd post my solution here in the hopes that it might help other people.
I was working on a remote cluster through VScode Remote and was getting similar errors to the original question(all 'go to ___' functionality was unavailable and was even getting a 'too large to track' error) and I thought I had to increase the number of watches, which didn't end up helping.
All I needed to do was install a python interpreter on the remote VScode server. This fixed my problem.
I believe vscode 1.1 (well, 1.1.1 actually) + the C++ extension (cpptools) is as much Intellisense as we can get for now.
You should load your big project with the "open folder" function to make vscode know about the other files.
https://blogs.msdn.microsoft.com/vcblog/2016/03/31/cc-extension-for-visual-studio-code/ warns about letting the indexing finish first (red icon in lower right corner during indexing) and mentions the current limitations on the source code parsing.
It wasn't working on my laptop as well after installing a few VSCode extensions. I decided to close and re-open VSCode with administrator permission and suddenly it sorted out.
I have been trying to fix this for a long time. In the end, what worked for me was simply reinstalling VSCode, then installing the latest C/C++ extension (v0.18.1). Then, in your .vscode/c_cpp_properties.json file, under includePath, add your include folder which has all your header files.
I tried the methods mentioned in this thread none of them seemed to work for me. A simple solution that worked for me is that I closed the current workspace and created a new workspace, added the folders which I required(same as the old workspace), and saved the new workspace. Waited for a couple of minutes to index and IntelliSense is able to find definitions now.
I am using VSCode 1.52.1 on Ubuntu 20.04.
In my case, for whatever reason,c_cpp_properties.json has become set to Disabled in ~/.config/Code/User/settings.json.
Manually changing it to Enabled solved the problem.
Fixed mine by UNCHECKING C_Cpp > Default > Limit Symbols To Included Headers
Your mileage may vary. Good luck!
Have you saved your workspace? Or did you just open a folder with File->Open Folder? This question already has many answers, but none of them address this case, which was my issue.
The question is not specific enough for me to know if you are having the exact same symptoms as my case.
If:
You have not saved your workspace. vscode doesn't say "(workspace)" at the top of the window.
None of the goto functions are working, but instead report: "No ___ found for ____"
The tag parser database icon in the bottom right is always there but only reports "Parsing open files", rather than telling you how many files have been parsed.
Then:
Try saving your workspace.
If you have multiple versions of a language on your PC, specify the exact language you are using in the VScode(in my case, I am using Python, so I must specify the version to the python Interpreter in VS Code)
If you could not do it whatsoever, then uninstall all the other versions that you don't use and then if you go to VS Code, it will ask the version to be used, and you would have only one version, so when you select the version, the "Go To Definition" will be activated.
I was having a similar issue with java on Ubuntu 20.04 using OpenJDK version 11 (openjdk-11-jdk in apt). At first I didn't have the JRE installed, so I installed it and it still didn't work.
Afterwards, I went to the CTRL + SHIFT + P menu and then to Java: Configure Java Runtime, there I saw in the Java Tooling Runtime tab that /usr/lib/jvm/java-11-openjdk-amd64 was selected, changed it to /usr/lib/jvm/java-1.11.0-openjdk-amd64 just to see if it would work, and after a restart it did. I'm not sure why this is, but I hope it may help somone else.
For python ensure your code analysis settings are correct. In my case the languageServer was accidentally set to 'None'. Reverting it to 'default' or 'pylance' did the trick.
Just to inform if none of above works then
In my case i was using Kite extension in my VS code, I just disabled it and it worked. I think kite extension is blocking this feature.
OS: Linux Ubuntu 22.04
if you encountered with following error:
"The .NET Core SDK cannot be located. .NET Core debugging will not be enabled. Make sure the .NET Core SDK is installed and is on the path."
Normally Vscode remains unable to locate .Net sdk. need to set path manually.
sudo ln -s /snap/dotnet-sdk/current/dotnet /usr/local/bin/dotnet
restart omnisharp & restart vscode
No need to do anything. Just close and re-open. It will work.
I also faced similar problem. In my mac os cmnd + 'click' is used to 'go to definition' then it suddenly stoped working. If that is the case then please follow these steps:
restart vs code
restart pc
uninstall all extensions and reinstall again followed by a pc restart.
I had a similar issue with the extension C/C++ installed. I solved it by downloading an older version of the extension and upgrading to the last version. Somehow it solved the problem...

Can't run VS 2015 Community without /resetsettings; Getting CANTLOADLIBRARY on opening new projects, and crashing on new .cpp files

I have Windows 10, fully updated.
I downloaded and installed Visual Studio Community 2015 last week for the first time, (previously programmed in Code:blocks, still installed) and selected custom install to allow for C++ and Python programming.
Installation ran smoothly, but VS always fails on launch.
On first launch ever, it said it was setting things up for first startup; asked me for sign-in which I did, at which point it briefly showed something about my profile before saying 'An error occurred while starting for the first time. Please restart Microsoft Visual Studio'. Imgur images of all dialog boxes here, including parts of a processmonitor log I estimated to be around the general time of the error.
Closing and restarting several times didn't help.
Uninstalling and re-installing didn't help.
Rebooting didn't help.
And uninstalling, running Ccleaner's Cleaner and Registry Cleaner, rebooting computer and re-installing VS didn't help either.
Repairing the install from Programs also didn't help.
I managed to find the exact same error on Google Search for VS 2013 but the only solution was where one person got a completely new OS and re-installed VS on that.
I tried the other suggestions they had including running:
devenv.exe /safemode
devenv.exe /resetskippkgs
devenv.exe /resetuserdata
devenv.exe /installvstemplates
devenv.exe /resetsettings
the first 3 took me to the same sign-in screen. Regardless of signing-in or not, or running VS from the Administrator Profile or not, these option always give the same failed on first startup error.
Installvstemplates gives an error saying the operation could not be completed, but /resetsettings finally got me into VS.
That's about all it does though, I can go to the home page and access options/menu buttons, but signing-in makes it crash and reload again (but it does sign me in and take me to the home screen)
Signed-in/not and Administrator or not, VS crashes on opening a new .cpp file.
When I click Start a New Project I get "Error loading type library/DLL.(Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY)). Closing VS and trying to open it normally from start menu still always throws the original error, despite working if I open it via /resetsettings.
I've also checked [HKEY_CLASSES_ROOT\CLSID{73B7DC00-F498-4ABD-AB79-D07AFD52F395}\InProcServer32] in Regedit and found it is apparently correct.
I also used devenv /log to generate an xml file of the process when I open it.
Just to mention I have .NET Framework 4.5-4.6 installed with VS as well.
Looking forward to any advice.
So, for anyone else getting the same problem, I haven't gotten any other advice, since this post.
If you're still having probs # this point the only real solution seems to be a clean install of your OS .
I can confirm it solved all my issues, with VS + some OS problems I wasn't aware of . I can only assume they might've been related, good luck.

Can't run Python via IDLE from Explorer [2013] - IDLE's subprocess didn't make connection

Resolved April 15, 2013.
In windows 7 (64bit) windows explorer when I right clicked a Python file and selected "edit with IDLE" the editor opens properly but when I run (or f5) the Python 3.3.1 program, it fails with the "IDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection." error message. All other methods of starting IDLE for running my python 3.3.1 programs worked perfectly.
Even the "Send to" method worked but it was unacceptably clunky. I've spend four days (so far) researching this and trying various things including reinstalling Python many times.
And NO it's not the FireWall blocking it. I've tried totally turning Firewall off and it had no effect.
Here's an important clue: In the beginning I installed and configured python 3.3 64 bit and everything worked including running from "edit with IDLE" but then recently when I needed a library only available in Python 2 I installed python 2.7.4 and from that point on the stated problem began. At one point I completely removed all traces of both versions and reinstalled Python 3.3.1 64 bit. Problem remained.
Then I tried have both 32 bit versions installed but still no luck. Then at some point in my muddling around I lost the option to "edit with IDLE" and spent a day trying everything including editing in Regedit. No luck there either. I reinstalled Python 3.3.1 still no "edit with IDLE" then Finally I uninstalled all versions of Python and I removed python references to environment variables PATH and PYTHONPATH. Then I Deleted all the Python related keys in the windows registry, deleted the C:\python33 directory that the uninstall didn't bother to delete. Overkill, of course, then I restarted windows and installed Python 3.3.1 64 bit version again and thankfully the option to 'edit with IDLE' was back. I was momentarily happy, I opened windows explorer, right clicked on a python program, selected 'edit with IDLE' selected RUN (eyes closed) and you guessed it, same original error message "IDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection."
I am completely stuck on this issue and really need help. Pretty sure that you can see I and not a happy camper. And to top it all off, I guess I don't understand StackOverflow yet, I have had this plea for help up in various versions for 5 days and not one response from anyone. Believe me I've looked at every thing in stackoverflow plus other sites and I can't see the answer. Almost seems like I have to answer my own question and post it, trouble is, so far I can't.
Anyway, thanks for listening. Yes I'm pretty new to Python but I've been programming and overcoming problems for many years (too many perhaps). anyone? Not personally having someone that is familiar with Python makes this difficult, how can I get in touch with an expert in Python for a quick phone conversation?
I had this same problem today. I found another stack overflow post where someone had a tkinter.py file in the same directory as python, and they fixed it by removing that tkinter.py file. When I looked in my python directory, I realized I had created a script called random.py and put it there. I suspect that it conflicted with the normal random module in python. When I removed this file, python started working again.
So I would suggest you look in your main python directory and see if there are any .py files that you could move to different places.
I'm running Windows 7 64-bit. I saw the same errors today. I tracked down the cause for me, hopefully it'll help you. I had IDLE open in the background for days. Today I tried to run a script in IDLE, and got the "IDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection." errors. So I closed all IDLE windows, and tried to restart IDLE. That then caused the same errors to pop up, and now IDLE wouldn't open successfully.
The cause was an extra pythonw.exe process running in the background. If I open up an instance of IDLE, then open a second, the second has issues connecting, and closes. But it does not close the instances of pythonw.exe that it opened, one is left running in the background. That extra instance then prevents future attempts to open IDLE.
Opening up Task Manager and killing all pythonw.exe processes fixed IDLE, and now it functions properly on my machine (1 instance open at a time though!).
Look for files on your main python folder that you may create in names like "threading.py", "tkinter.py" and other names that overlapps with your Lib folder and move/delete them
Adding to existing answers - it is actually possible to have firewall block IDLE when not running with -n flag. I haven't used IDLE for a few months and decided to try if it works properly with newly installed python3.3 (on Linux Mint 13 x86). In between I made iptables setup much more aggressive and apparently it blocked idle-python3.3 from connecting to the Python RPC server. Sometimes it is just what the message says.
I had exactly the same issue :"IDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection."
I found the answer from this stackoverflow site. I created a file named string.py and that classhed with the normal python files. I removed the string.py and everything works now. Thanks folks.
I had the same error message. Error not seen after I added all the *.exe filea to be found in the Python install directory to the Windows firewall exception list.
I finally got it to work when I disabled ALL firewalls and antivirus, because some antivirus ALSO have firewall control. Ex. avast
Remove copy.py in your folder if you happen to have one
Using Windows 7 64 installation of Python 2.7.10 Shell I solved the above problem by opening the program as an administrator.
i have the Same issue on os win7 64Bit and Python 3.1 and find a workaround because i have a Project with many .py files and just one gave this error. - Workaround is to copy a working file and copy the contents from not working file to working file. (i used Another editor as idle. The Problem with that workaround is... of you rename the file it doenst work. attention just rename the not working file doesnt work for me. just that copy paste. – john
I came across this problem too. There are two things you can do
You may already have a process running call pythonw.exe which prevents IDLE from being starting. End that task and try running IDLE again
Use pythonwin or python command line

How do I make Windows XP machine stop trying to use uninstalled Java JDK (1.6.0_13)

My Windows XP workstation at the office had several old versions of the Java JDK installed on it. Today I decided to install the newest Java JDK and uninstall the older ones. BIG MISTAKE APPARENTLY!
I don't understand why, but XP seems to think that one of the removed JDK installations is the one that it wants to use. Not sure if it is relevant, but it was JDK 1.6.0_13. I uninstalled it earlier using the XP "Add or Remove Programs" from the Control Panel. The JDK folder is gone (as one would expect) but apparently not forgotten. Here are the symptoms:
Eclipse will no longer start up and use the new JDK that I installed. Eclipse acts as if there is no JDK available on the system.
When I type java -version at a Command Prompt I get the following response:
Error: could not open `C:\jdk1.6.0_13\jre\lib\i386\jvm.cfg'
(Gee thanks. I never would have guessed that the uninstalled JDK could not be found...)
When searching around on the machine I found a system service named "Java Quick Starter" that is pointing to the removed JDK directory.
Now I know what some of you are probably thinking. He has a JAVA_HOME system variable pointing to the old location and/or has the old location in his PATH system variable. Not the case! There are no system variables that reference this old JDK and neither does my PATH. In fact, I have already defined a new JAVA_HOME for the new JDK that I installed this morning and added it to the system PATH. I was sure that would at least give me success from the Command Prompt, but no luck.
And in case you're wondering if I have rebooted after the install/uninstall/system variable changes, yes I have.
QUESTION
Does anyone know what I did wrong here? How do I purge these references to the uninstalled JDK from my system so it can start using the newly installed one?
EDIT 1
I checked the registry as duffymo suggested. There was some stuff under HKEY_LOCAL_MACHINE/SOFTWARE/JavaSoft that did not look right. An entry still existed for the 1.6.0_13 JDK that I had deleted, and a number of the newer JDK installs had entries here with their JavaHome attribute set to the path for the old 1.6.0_13 JDK for some inexplicable reason!
I uninstalled all of the JDKs on the machine, but still there is a remnant of the old 1.6.0_13 JDK in this registry section.
Also, a 1.6.0_21 JRE is still listed in the Add and Remove Programs list that gives an error if I try to uninstall it. That one is also shown in the registry and has a registry "JavaHome" key with a value that points to the no-longer-existing JDK 1.6.0_13.
Check the registry to see if something is hanging around there to point to the old JRE.
Look at HKEY_LOCAL_MACHINE/SOFTWARE/JavaSoft. You'll see Java Development Kit and Java Runtime Environment there. See what they say.
Now that you've found that the registry values are incorrect, I'd recommend either modifying them to point to the correct values OR remove them, uninstall the JDK, and reinstall.
You could also maybe try disabling the service from starting.
Copied from my repost of this quesiton on www.superuser.com:
https://superuser.com/questions/203143/cannot-install-java-jre-on-windows-xp-workstation-possibly-due-to-previous-faile
I tried CCleaner on the registry, but it didn't solve the problem. I was feeling pretty desperate at that point and decided to search the registry with regedt32 for instances of "jdk1.6.0" and delete everything that was obviously garbage. Any registry references to JDK/JRE instances that I knew no longer existed got deleted. Usually this meant deleting the whole key, but there were a few keys where I just had to delete an individual value/data pair. I rebooted after I was done performing meatball surgery on my poor defenceless registry.
DISCLAIMER: I don't recommend that anyone start messing with random keys in their registry as the primary way to solve a problem! This was my last resort before considering the option of re-imaging my workstation and re-installing EVERYTHING.
Having said that, this approach did solve my problem. I was able to install the JRE and then things like Eclipse started working normally once again. I next installed a JDK of the same version without incident.