Develop Reference

Run Python on Notepad++, execute screen

https://medium.com/never-too-late-to-machine-learn/how-to-step-by-step-setup-notepad-to-run-python-scripts-e1ce3b3ac7fe
I am reading from this tutorial linked above.
What I am doing is trying to run python for the first time on Notepad++. I've downloaded python, etc.
What I am lost on is this:
"Just copy the location of the python exe file, and let’s go back to Notepad++. The execute screen is waiting for us.
In the execute screen, paste the location of Python followed with “$(FILE_NAME)” "
What is the execute screen, where am I pasting the location to?
I hope someone can help me. Thank you.

first, you need "$(FULL_CURRENT_PATH)" for full path of file, the $(FILE_NAME) is for file name only or relative path
then you can paste like
C:\Python39\python.exe "$(FULL_CURRENT_PATH)"
for execute screen, new name for the menu is Execute NppExec Script.. see image below

to run your python script in notepad++ is quite simple:
make sure your python is correctly installed, open your console and type python, you should see something similar to the following (it should say Python X.Y.Z accordingly to the version you have installed)
now that we know that python is correctly installed, go to notepad++, open on it your desire script and go to the Run menu and select Run...
enter the following command python -i "$(FULL_CURRENT_PATH)" and press Run
You should see the following
And that is all.
-
Now that the previous worked, lets make it more reusable, repeat step 1 and 2, but instead of Run press Save..., give it a name (like python for example) and if you so desire also a keyboard binding (a key combination to press to run this command)
Now in step 1, you can pick python (or whatever you name it) instead or "Run..." to run you script (or press you key combination if you give it one)
now some additional explanation about the previous command python -i "$(FULL_CURRENT_PATH)"
the -i option is to enter in interactive mode, that is run you script and then continue executing python so you can do more python stuff with everything for your script loaded in there too, that way the console doesn't just close intermediately after your script is done running.
$(FULL_CURRENT_PATH) is a command for notepad++ to said to substitute there for the full path of your given script
Alternative command: cmd /K CD "$(CURRENT_DIRECTORY)" & python -i "$(FILE_NAME)"
This command is the equivalent to opening your console (cmd /K), move with cd to the folder where your script is (CD "$(CURRENT_DIRECTORY)") and then run your script with python in interactive mode (python -i "$(FILE_NAME)") and & is to separate both instructions (the /K is like python's -i but for the console) (the "-i" is now optional, but I prefer it with it to test other stuff in the script without need to put it on the script because doing so make little sense...)
Why you might want to use this over the other? two reason:
the first is when dealing files so you don't have to type the full path of a given file that sit next to your script so you can use just the name of said file, aka set the working directory to that where the script is located, otherwise it will be that where notepad++ is located (usually it might be like "C:\Program Files\Notepad++").
In case of an error, the windows will remain open so you can know what was the error instead of closing abruptly.

How to associate .py files to open CMD with `py` then the filename?

How to associate .py files to open CMD with py then the filename? Maybe in a .bat file?

sorry about my poor English, and if I insist on subjects you already master, it's my first constructive answer here ;p
I'm not sure about what you want to achieve but from your question and its tags I assume tha you want to :
run ".py" file containing a python script from the file explorer by double clicking it
have a cmd.exe window open after this action with your python script interpreted
have a way to review this scipt output without relying on superman eyes able to gasp 65536 characters per millisecond
So basically, if you have a script printing "Hello World !", you want to click on it, and see in a cmd.exe window the text "Hello World !" displayed to validate that your script is working properly ? To make it short you are RIGHT, a .bat file will be enough to do the trick, even if there is a whole bunch of alternatives including executable generation to embed a full python interpreter (see http://www.py2exe.org/), or simply adding a wait loop at the end of your script, but having a batch script associated is probably the lightest and easiest solution in your case.
As you figured out, associating .py files with the python interpreter will run your scripts but the console window will dissapear immediatly on completion without letting you the time to consider the output. You just need to associate .py files (right click -> open with, if you want to do it programatically it's possible to set this in the windows registry) with a .bat script that will do the job, that is, run the script and wait until you are ready to "leave".
This batch script will take the python script you clicked on as an argument, run it with your python interpreter and pause it's execution, waiting for your input before leaving. Since the default windows file association will execute your target program and pass it the file executed (should it be a click or a "start XXX" command) it's pretty straightforward, the bricks to do this in batch are :
program_name argument : to directly call an external command, so "python my_script.py" will run the python.exe program (no need to add the ".exe" or "'.com" part since it's an obvious case for windows) with my_script.py as argument, provided that your python executable directory is in your PATH environment variable, otherwise you will have to provide the full path, ie: "C:\Python27\python.exe my_script.py" .
%X : to reference command line arguments sent to your script (%1 for the first one, then %2 etc.,)
pause : a command that will display the message "Press any key to continue ...", and obviously wait for any key before leaving your script
evantually, #echo off : to avoid printing each batch command before its execution
So, assuming that your python interpreter is installed in C:\Python27 (please replace with whatever version / location for your python.exe, or just "python" if it's in your PATH) your batch script could look like something like this :
#echo off
C:\Python27\python.exe %1
pause
Save it somewhere, associate it with .py files, and you are done. HTH

You can do it in two separate ways:
First, you can rename your .py file to .pyw and just open it and the script would be executed immediately (with pythonw.exe) but this is not showing you a console output.
Or you can simple associate your .py files with standard python.exe which will show the console output.

How to run python script without writing command on cmd again and again

I am practicing python code and executing it through command line. each time i have to execute my python file i go to cmd and write
D:\PythonPractice>python myClass.py
Is there any standard and comfortable way available to execute python code quickly?

If you are executing the same command, with no changes to arguments or anything, you can pack it in a .bat file (windows executable)
Name it something like myscript.bat
D:\PythonPractice>python C:\path\to\myClass.py
Put full path inside it. Now double click will do.

Use PyCharm Software by JetBrains (same company who developed Android studio and Kotlin language), it will help you in many ways .
Run Python with single press of a button.
Add modules easily just with some clicks.
Debugging the code as smooth as possible.
It is Awesome, I am using it for past couple of months.

you can change file association which controls what to do when invoking filename in command line. For instance, when you just type text filename in cmd, notepadd will be opened, for word docs Word or other document editor.
Have a look into following link from google or you can fiddle by yourself starting from Control Panel > Control Panel Home > Default Programs > Set Associations. Select a file type in the list and click Change Program.
Alternatively,you can use any of Python IDE (PyCharm,PyDev etc.) so you will be able to run directly scripts from editor.

With Notepad++, you can also create a shortcut to be able to launch your python script :
Menu Run > Run (or press F5)
Choose the python .exe (default in C:\Program Files (x86)\Python36-32\python.exe
Then add this code next to the path : "$(FULL_CURRENT_PATH)"
This will allow to execute the current file
example of command with Python 3.6 :
"C:\Program Files (x86)\Python36-32\python.exe" "$(FULL_CURRENT_PATH)"
Then save the command, by assigning a shorcut key, it's better with a modifier like SHIFT (SHIFT + F10)
Now you can launch any script with this shortcut.

Notepad++ cannot find filepath

I'm trying to run a Hello World program in Python I wrote in Notepad++ using the NppExec plugin, but instead of printing, I'm getting
python C:\Users\Sam\Desktop\Test.py
CreateProcess() failed with error code 2:
The system cannot find the file specified.
The argument I'm giving NppExec is
python C:\Users\Sam\Desktop\Test.py
which is the filepath that NP++ gives me when I copy the full filepath to the clipboard.
Is there some configuration of NP++ that I have to set to get this to work?

I tried what you are attempting to do, and this is how I solved it:
Instead of passing the argument you gave, I passed this one:
C:\Python32\python.exe C:\Users\Sam\Desktop\Test.py for python 3+
C:\Python27\python.exe C:\Users\Sam\Desktop\Test.py for python 2
Generally, in order for it to work, you have to define where you have installed the python executable.

In general, you can use the following as an argument to NppExec for any currently opened Python script in Notepad++:
[Your Python install folder here]\python.exe "$(FULL_CURRENT_PATH)"
Note that "FULL_CURRENT_PATH" is a Notepad++ internal variable, not a placeholder for your file's actual path and filename, so the above argument should work without edits regardless of your current script's filename.
Further references for using NppExec with other source code: http://sourceforge.net/apps/mediawiki/notepad-plus/index.php?title=Compiling_Source_Code

This is an alternative method to running python programs in notepad++, which I recommend after being unable to find a suitable plugin.
create a batch file called pythonXX.bat ( where XX is the current version of python you're using ) and save it along side your python.exe in C:\PythonXX\
and insert this text into that batch file:
#ECHO OFF
C:\PythonXX\python.exe "%1"
PAUSE
#ECHO ON
Then inside notepad++ create a run command:
C:\PythonXX\pythonXX.bat "$(FULL_CURRENT_PATH)"
Then click save run and assign it to a keyboard short-cut, good to go :)

Run Python script without opening Pythonwin

I have a python script which I can run from pythonwin on which I give the arguments.
Is it possible to automate this so that when I just click on the *.py file, I don't see the script and it asks for the path in a dos window?

You're running on Windows, so you need an association between .py files and some binary to run them. Have a look at this post.
When you run "assoc .py", do you get Python.File? When you run "ftype Python.File", what do you get? If "ftype Python.File" points at some python.exe, your python script should run without any prompting.

Rename it to *.pyw to hide the console on execution in Windows.

You can also wrap it in a batch file, containing:
c:\path to python.exe c:\path to file.py
You can then also easily set an icon, run in window/run hidden etc on the batch file.

how does your script ask for or get its parameters? If it expects them from the call to the script (i.e. in sys.argv) and Pythonwin just notices that and prompts you for them (I think Pyscripter does something similar) you can either run it from a CMD window (commandline) where you can give the arguments as in
python myscript.py argument-1 argument-2
or modify your script to ask for the arguments itself instead (using a gui like Tkinter if you don't want to run from commandline).