The problem I am facing is that, given a list and a guard condition, I must verify if every element in the list passes the guard condition. If even one of the elements fails the guard check, then the function should return false. If all of them pass the guard check, then the function should return true. The r…
Tag: python-3.x
Why would I add python to PATH
I am beginning to look at python, so when I found a tutorial it said that the first thing to do would be to download python from www.python.org/downloads/ Now when I downloaded python 3, I then started the installation and got to Why would I want to “Add Python 3.5 to PATH”? What is PATH? Why is i…
How to get the value of a selected treeview item?
I’ve looked at several posts regarding this and they’ve done the following -The output i get is blank -The output i get is the id, which is practically useless unless somebody can show me how to manipulate it -No output at all i just want to be able to click an item in treeview, and instantly be g…
“SyntaxWarning: name ‘our_mongo’ is used prior to global declaration”
My code keeps giving me the above syntax warning. My code includes, but is not limited to: I’ve tried everything and it’s still an issue. WHY is this a syntax error? What is the best way to fix this? Answer It is not a SyntaxError but a SyntaxWarning. Python warns that you’re using our_mongo…
How to specify what actually happens when Yes/No is clicked with ctypes MessageBoxW?
Ive seen a lot of people show this code, however nobody has ever specified how to actually make the Yes/No work. Theyre buttons, and they are there, however how does one specify what actually happens when you click either or? Answer Something like this with proper ctypes wrapping: See the documentation for Me…
Copy image to clipboard?
First of all, the question on SO copy image to clipboard in python leads to answer Write image to Windows clipboard in python with PIL and win32clipboard?, which was only good for Python 2.x. — I tried it and it didn’t work. I overcame one problem: StringIO and cStringIO modules are gone in Python…
Pip Install hangs
I currently have Python 3.5 on my Windows machine. I’m trying to install a Python package using the command “pip install” but as soon as I hit enter nothing happens. The action hangs for such a long time and when I try to exit the command line, it freezes. How do I get pip install to work? A…
How to install pyaudio on mac using Python 3?
I first tried: but I was told that Then I tried: Then I got: but I had installed portaudio Warning: portaudio-19.20140130 already installed So what can I do? Answer I’m assuming you are on a Mac. This is a simple issue to fix. First install Xcode. Then restart your computer. Afterwards run the commands …
TypeError argument must be an int or have a fileno() method
Seen here https://stackoverflow.com/search?q=TypeError+argument+must+be+an+int+or+have+a+fileno%28%29+method But just can’t quite find my answer. I am trying out a chat script Server side runs perfectly fine. But client Has run from cmd, not IDLE because of issues (read something about it relating to my…
How To Subscribe To Websocket API Channel Using Python?
I’m trying to subscribe to the Bitfinex.com websocket API public channel BTCUSD. Here’s the code: I believe ws.send(“BTCUSD”) is what subscribes to the public channel? I get a message back I think is confirming the subscription ({“event”:”info”,”version…