Develop Reference

How do force or change my terminal to run python executable file in python 3 just by opening the file?

My terminal is running python 2 so when I run my python file the program fails.
So basically I am new to programming and trying to create a small python script to help me auto create folders. I also want to give the script to colleges so that they can use it on their systems too.
I know that I can run my file in terminal by using "python3 myfile.py" and it will work, but that's too much off a mission to do for my colleges and as my colleges are not familiar with code or terminal for that matter, I wanted to create an executable file so that they just click to open type a few answers to the promoted question and boom folders created.
This is where I run into a problem, I have "#!/usr/bin/env python3" at the top of my file but when I run the script IDLE opens up and it just shows the code I have written but doesn't seem to run the actual script I wrote. Am I doing something wrong?
I also then though perhaps I could just use the terminal to run the file as it is now executable, so I go into terminal and enter "myfile.py" and the program runs but in python 2 so my script fails as it is in python3. So another question would be is there a way to code into my python file, when running this file make sure you use python3? as I would want this to work on all colleges system without them having to write out anything in terminal?
Sorry for the long explanation but any advice would be greatly appreciated.
Thank you in advance

When you are on windows you can just create a .bat file where you write: python3 myfile.py in it.
Both files have to be in the same directory.
If you want to have a .exe you can also use py2exe.
You could also try just #!/usr/bin/python3 without env.
More here.

how to execute python script on atom on windows

I am using Atom on Windows 10. While setting up Atom on my computer, I created a folder called "beyond basics". Then I created a python file. I installed platform io on Atom. i got a "+" icon on screen. upon clicking that i got a command line. I am trying to execute on that by writing python filename but I am getting an error. Any help is appreciated.
python3 myfile.py

Try typing myfile.py without the python prefix. It may work, as it works for me on Windows 10. Your bubble is covering up an error message that could help use debug. Can you add an edit and tell us the error message? Until then, just try the command without the python prefix.
You should also save before running, as was commented by Denis Fetinin.
If it still doesn't work, try addding python to the env variables. It's a simple process that you can follow here.

python console closes before it starts

I am learning Python and came across this problem. I know that i can put "input()" at the bottom of the program, but the problem is that it IS there, but console terminates nevertheless. It seems like the programm never starts at all. I am using the 3.5 version of Python.

Open a terminal, navigate to the directory of your file, and type python myfile.py. If you just double click the file in your system explorer it will run and close when it finishes, which is often too fast to see what's going on.

I think you are starting the programme by clicking on it don't do that to run your programme follow following steps
1.open command prompt
2. go to the path where you have your python programme
3. use command for python for eg: python programme.py in linux
4. if it says python command not recognised probably because the path to python executable is not present in system path add it to environment variable and that should work fine

Emacs frozen with message "Loading Compile...Done"

I am using emacs to write Python code. However sometimes Emacs gets frozen with the message "Loading Compile...Done" at the bottom of the editor. I won't be able to make changes to the file or execute any commands when this happens.
How can I fix this issue?

Emacs may be in a loop: Typing C-g may get you out of it.

You should check that emacs is actually able to run Python or whichever compiler you are trying to invoke using compilation mode. If it is python try:
Giving the full path to the python executable.
Installing the executable with a path with no spaces especially on windows.

I need help recognizing files in komodo in order to run them in python

I am just learning python as my first programming language, and I just installed python 3.3, 64 bit on my windows 7 OS.
I installed komodo edit 8.0, and I am trying to print ('Hello world'). I set up the correct path so that I can access python through my command prompt.
From komodo, I saved my helloworld.py file to my desktop.
When I try to run the command prompt, I search for the file, and it says file not found, or file does not exist. I can open the folder from komodo, but it appears that it is empty. When I open the folder directly from my desktop, I see the file is in there, so it seems that komodo is not recognizing it.
How can I get Komodo to recognize my saved file and run it in python? I am very new so please go step by step if you can.
Thank you!

Many of the comments you've received recommend avoiding Komodo IDE. But you're not using Komodo IDE! You are using Komodo Edit, so the comments about IDEs just don't apply.
Sure, you could use Notepad++ or even plain old Notepad, but neither of those offers any real benefit over Komodo Edit. In fact, you would be losing a valuable feature of Komodo (both IDE and Edit version): realtime syntax checking.
I use Komodo IDE and like it quite a lot. If you want to run Python programs inside Komodo and debug them right there, Komodo IDE is a great choice.
One problem may be simply that you're expecting Komodo Edit to offer the same features as Komodo IDE. It doesn't. It's just a very nice editor. You need to run your Python code outside Komodo using the command line or other means. Just open a command prompt, cd to your directory, and type python yourfilename.py.
But you say you already tried that? It must be simply a matter of being in the wrong directory.
If you have your .py file open in Komodo, do a Ctrl+O right there, and the Open File dialog will show you the file's path at the top of the dialog. You can use Alt+D to select the path, and from there you can copy it and paste it into the command line if you need to cd to that directory.
If you'd like to use an interactive debugger (an excellent idea!) without paying for Komodo IDE, you can use PythonWin.
Install Mark Hammond's Python for Windows extensions. Included in this package is PythonWin. You can open your .py file in PythonWin and select File/Debug/Step In to start debugging your code. Then you can use the other commands on the File/Debug menu to step through it. Take note of the F10/F11/etc. keyboard shortcuts which give quicker access to these commands.
Whichever way you do it, I highly recommend using an interactive debugger like this when learning a new language. Being able to stop the code and look at your variables right then and there is a huge improvement over being limited to print statements for debugging.
So I disagree quite strongly with the recommendations against using an IDE like Komodo. The very first thing I look for when I learn a new programming language is an interactive visual debugger. I don't care too much whether that debugger comes packaged as part of an "IDE" or is a standalone debugger, as long as it shows the source code, makes it easy to single step, and shows the variables whenever it's paused.

Ok heres what I personally do.
Open run, type in cmd
Navigate to whatever directory my mypythonfile.py file is
Open whatever text editor you feel like ( personally i use notepad++ because it is NOT an IDE like kodomo, but just a pretty text editor.)
Type python mypythonfile.py and hit enter. This will run the program.
Open mypythonfile.py in text editor program.
Make changes to the python file.
Go back to the cmd window and press arrow up ( to go to the last typed command) and then press enter again, to run the program again.
Repeat steps 6-7 until your program is perfect.
It seems like you are having trouble with the Kodomo IDE instead of the actual learning python process. IDEs are complicated tools with lots of buttons that are scary. Learn the language first, then once you are comfortable there, then maybe you will use an IDE? Or maybe you will just keep using a text editor instead. Thats up to you.