I have so much respect to all of you who coded before using the implementation of AI. I am trying to learn right now and I have no idea what i am doing or reading. The most i can do is print text and asking a user for input from their im lost in the sauce. Thank you to all the coders who worked on AI so I can learn that way.
Hello all! I hope this is the right place to post this.
I have been writing a PyQt6-based GUI called for the command line program , and I'm facing a strange issue on Windows that I am not facing on Linux.
To briefly explain croc if you've never used it, it's a very easy-to-use command line program that allows users to transfer files to one another securely through a relay server. It's a handy tool, but there's no official UI, so Swamp Swap became a passion project for me and my friend to get up and running.
Swamp Swap is simply a GUI with a worker thread that runs croc via a subprocess.Popen object and handles outputting to the program through line buffers read via standard piping. On both Linux and Windows, this functions just fine; the thread accurately picks up the output which allows the flow of the program to work (e.g. awaiting connection, retrieving the transfer code, etc.), but on Windows, there's an issue I can't seem to figure out.
Whenever the subprocess runs on Windows, a CMD window opens (always blank, no outputs are ever displayed there) and stays there until either the transfer completes or the user cancels the transfer.
I'm familiar with subprocess doing this, and so I thought the fix would be as simple as this:
# Base kwargs in case we're not on Windows
kwargs = {}
# If on Windows, add the CREATE_NO_WINDOW flag
if sys.platform == "win32":
kwargs["creationflags"] = subprocess.CREATE_NO_WINDOW
# Create the process
process = subprocess.Popen(
...
**kwargs
)However, while this does hide the CMD window, unintended side effects happen if I do this, including:
-
Failure to start sending
-
Failure to read the transfer code when sending
-
Files being received even if the user hadn't confirmed them yet
-
No output to the GUI's console window (I made a special console window dialog where users can view the outputs if they want)
These different effects don't all occur every time, but at least one or more are present in every attempted fix I've tried.
Moreover, extensionless files with the names croc-stdin-########## (#'s replaced with a random number or date and time code. One of the two, I don't remember) are written to the folder where the program is run within, regardless of if it is the main script or the built frozen executable.
This seems to imply that croc on Windows has some dependence on an active and visible CMD window in order for it to work with Swamp Swap, but I really have no idea at this point.
This problem seems to be more of a croc problem than a Python problem. Though despite this, I'm curious if there are any out-of-the-box solutions anyone here could come up with for a method to subvert these issues despite croc's reliance on a CMD window.
Also, yes, I have tried asking various popular machine learning models. Their solutions were either the same as above or some ungodly, ugly method that also didn't work.
I made a function for determining price of an item in the list. I made it so I get the price for an item in the list, but if the item IS NOT in the list, I programmed it to return none.
The problem is that when I run the program, it gives me a SyntaxError, and "return outside function"
What does this mean, and how do I fix it?
Thanks!
prices = {"apple": 1.50, "bread": 2.75}
def get_price(prices, item):
return prices[item]
try:
get_price(prices, "apple")
except KeyError:
return None
