I have Python scripts in Linux Server.
I have multiple scripts in directory example /home/python/scripts
all users use same username "python" to login linux server.
If multiple users are run same script is there any issues?
Like if one user start execute one script before finishing this script another user also started same script. Is variable got overwrite ?
What is best way to handle this kind of things.
So long as the state is not shared in any way between the different interpreters executing the scripts (re each user running the script gets a different Python interpreter process), there should be no problem. However if there is some shared context (such as a log file each process is simultaneously reading/writing from assuming mutual exclusivity), you will very likely have trouble. The trouble could be mitigated in many ways whether through mutexes or other synchronized access.
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Im working in an architecture firm where we are trying to use the Python API for ArchiCAD.
It allows us some much needed automation for certain workflows, but we still haven't used it, because we don't know how to limit the users right to execute Pyhton.
We are planning to put some Python Scripts on an internal server and our co-workers would be able to use the "ArchiCAD Palette" to execute the scripts from the Server.
But we are currently worried that a person could write tehir own script and harm our projects etc, or delete data w/e.
So we were thinking about only allowing the Execution of Python scripts from a certain folder.
->The Folder would be read-only for users so they cant throw in their own scripts
Is it possible to do that?
If not, can anyone recommend a way were we can limit our co-workers to use only our self-written scripts but prevent them from running anything harmful?
Thanks for any Help
Kind Regards
Dayiz
I was wandering if there was a way I could easily use Windows Task Scheduler in order to run multiple scripts at the same time. I am wanting to host multiple discord bots on a spare PC that would each have their own bot key for different discord servers; my current understanding is that you cannot easily run multiple node.js bots like this (currently I have 1 in the scheduler and the other I have to run manually) but I was wandering if this is something that can be done in Python or if I can make it happen with node.
I am not really into Python, don't fall for the name hehe
Anyway, logically speaking this is a threading problem, did you try enabling multiple threading in the program you are using? or dynamically allow the program/code to create multiple threads to handle multiple tasks related to the Node.js file you are using!?
Best Regards
I have a windows application built with progress openedge technology.
I have created a python script to generate an excel file but I need to deploy it to the client and im afraid of requiring special permissions on the client side if I compile it to .exe and attempt to run it.
Can someone suggest me a method to be able to integrate python with my project smoothly without breaking anything?
You could compile it on your own machine then try to run it while logged in as a guest user. If a guest account can run it without complaints it will probably run fine on the client machine.
This is crude because you still haven't tested all possible client platforms (unless you're talking about one specific client), also we don't know what's inside your script.
Use icacls to set appropriate permissions of your compiled script before shipping.
I'm not sure about the special permissions thing, but is it possible for you to turn your script into a CGI program and stick it on your webserver, or wrapper it with WebSpeed? Then your app could call a web service to get the .xls file.
I'm writing a python script which copies files from a server, performs a few operations on them, and delete the files locally after processing.
The script is not supposed to modify the files on the server in any way.
However, since bugs may occur, I would like to make sure that I'm not modifying\deleting the original server files.
Is there a way to prevent a python script from having writing permissions to a specific folder? I work on Windows OS.
That is unrelated to Python, but to the filesystem security provided by the OS. The key is that permissions are not given to programs but to the user under which they run.
Windows provides the command runas that allows to run a command (whatever the language is uses) under a different user. There is even a /savecred option that allows not to provide the password on each activation but instead save in in the current user's profile.
So if you setup a dedicated user to run the scrip, give it only read permissions on the server folder and run the scrip under that user, then even a bug in the script could not tamper that folder.
BTW, if the script is runned as a scheduled task, you can directly say what user should be used and give its password at config time.
I have a python script which executes a string of code with the exec function. I need a way to restrict the read/write access of the script to the current directory. How can I achieve this?
Or, is there a way to restrict the python script's environment directly through the command line so that when I run the interpreter, it does not allow writes out of the directory? Can I do that using a virtualenv? How?
So basically, my app is a web portal where people can write and execute python apps and get a response - and I've hosted this on heroku. Now there might be multiple users with multiple folders and no user should have access to other's folders or even system files and folders. The permissions should be determined by the user on the nodejs app (a web app) and not a local user. How do I achieve that?
Execute the code as a user that only owns that specific directory and has no permissions anywhere else?
However- if you do not completely trust the source of code, you should simply not be using exec under any circumstances. Remember, say you came up with a python solution... the exec code could literally undo whatever restrictions you put on it before doing its nefarious deeds. If you tell us the problem you're trying to solve, we can probably come up with a better idea.
The question boils down to: How can I safely execute the code I don't trust.
You can't.
Either you know what the code does or you don't execute it.
You can have an isolated environment for your process, for example with docker. But the use cases are far away from executing unsafe code.