I had saved a python file after working on it for sometime, but now when I open it, Python 3.9.1 opens a window then immediately closes. I had done lots of work on this and don't want it to go to waste. I'm on Windows 10.
If you’re using the Open option when you right-click or you are simply double-clicking the script, the program will run and close so fast you won’t even see it.
Here are two options I use:
Open up the Command Prompt. You can easily do this by going to the address bar of your File Explorer and enter ‘cmd’. If you’re in the directory where your script is, the current working directory of the Command Prompt will be set to that. From there, run python my_script.py.
Edit your script with IDLE. If you’re using an IDE, it should be nearly the same process, but I don’t use one so I wouldn’t know. From the editor, there should be a method for running the program. In IDLE, you can just using Ctrl + F5.
Right click on it and clicken "open with". Then choose Python IDLE.
You are trying to run the file instead of editing it.
You have to right-click the file and you should the "edit with idle" option.
Related
I have made a Python program that uses output.to_csv('results.csv'). When I run it in Spyder it creates that CSV file. But when I double click on it nothing happens. Cmd appears and closes but nothing on the folder, no results.csv.
What am I missing? What more do I have to do?
Run the program from the command line itself instead of double-clicking the .py file.
I assume you are on Windows since you mention CMD. First, cd into the directory containing your program. Then, run python <program>.py or python3 <program>.py depending on your installation.
This time, you will see any output or error messages that appear in CMD without it immediately closing.
If the .csv file really exists, you should be able to go to your File Explorer and find the file at the top of the "Quick Access" section. Right-click the file and hover over "Open With >". Then select Notepad and a notepad will open up showing your results.
If you do not see the file, then try running your program on the command prompt (for Windows):
Press the windows key and type "cmd" in the search bar.
Choose "Command Prompt"
Go to the dir of your program using the cd command
Type python <program name>.py
If there are no errors, follow the steps in the first paragraph.
Ok i guess windows is not recommended at all for this type of tasks. I mean running something simple as create such file is like trying to kill the Lernaean Hydra.
What i did is i just runned it with anaconda prompt and it worked sweet! Thanks for help. Thanks to all!
PS: I'm seriously considering changing to Linux after this
For anyone having the same problem, but have anaconda installed. 1) Open Anaconda Prompt, 2) use cd (1 space) then adress of the folder which contains your py program (eg. cd C:\Users\Bernie\Desktop\tasos) and hit enter, 3) on the next line that appears type: python program_name.py, 4)Hit enter, 5)success!
Is there a way to differentiate between a .py file launched by double-clicking its icon in Windows versus typing myscript.py in an existing command prompt window? My code ends with os.system("pause") so that I can see the results when double-clicking to launch, but that line should be ignored when running it in a persistent window.
I would first recommend you to go to advanced settings of your Windows Explorer and activate the "show extensions" options if that can help.
For more information about your question, you can also check this link :
https://automatetheboringstuff.com/appendixb/
I have installed Python and written a program in Notepad++.
Now when I try to type the Python file name in the Run window, all that I see is a black window opening for a second and then closing.
I cant run the file at all, how can run this file?
Also I want to tell that I also tried to be in the same directory as a particular Python file but no success.
I assume you are running the script with command python file_name.py.
You can prevent closing of the cmd by getting a character from user.
use raw_input() function to get a character (which probably could be an enter).
It sounds like you are entering your script name directly into the Windows Run prompt (possibly Windows XP?). This will launch Python in a black command prompt window and run your script. As soon as the script finishes, the command prompt window will automatically close.
You have a number of alternatives:
First manually start a command prompt by just typing cmd in the Run window. From here you can change to the directory you want and run your Python script.
Create a Windows shortcut on the desktop. Right click on the desktop and select New > Shortcut. Here you can enter your script name as python -i script.py, and a name for the shortcut. After finishing, right click on your new shortcut on the desktop and select Properties, you can now specify the folder you want to run the script from. When the script completes, the Python shell will remain open until you exit it.
As you are using Notepad++, you could consider installing the Notepad++ NppExec plugin which would let you run your script inside Notepad++. The output would then be displayed in a console output window inside Notepad++.
As mentioned, you can add something to your script to stop it completing (and automatically closing the window), adding the line raw_input() to the last line in your script will cause the Window to stay open until Enter is pressed.
Try to open in Command Prompt instead of run window. The syntax is:
py filename.py
If it doesn't work, try to reconfigure Python. Did you set environment variables? If not, this could help you
I am trying to open the python IDE with a specific program open on my desktop (in the shell so that I can edit it). The code I am using is:
os.system("C:\Python27\lib\idlelib\idle.py C:/Python27/lib/file_name.py")
Its working, but its opening three things:
A command line (without the actual command line)
An empty IDE
The program I was trying to open
I dont want the previous two things to open, just the third. Whats going on, how do I fix it?
Thanks,
Neil
The command window opening is an inherent part of os.system, something as simple as this should work:
C:\Python26\Lib\idlelib\idle.py "C:\file1.py"
This opens just the code you want in IDLE, without the shell. To run it in the IDLE shell (opening it in the process), simply press F5.
You can use pythonw.exe for this:
os.system('C:\Python27\pythonw.exe "<absolute path to your file here>"')
I'm trying to teach Komodo to fire up IDLE when I hit the right keystrokes. I can use the exact path of the shortcut in start menu in the Windows Explorer location bar to launch IDLE so I was hoping Komodo would be able to use it as well. But, giving this path to Komodo causes it to say that 1 is returned. This appears to be a failure as IDLE doesn't start up.
I thought I'd avoid the shortcut and just use the exact path. I go to the start menu, find the shortcut for IDLE, right click to look at the properties. The target is grayed out, but says "Python 2.5.2". The "Start in" is set to, "C:\Python25\". The "Open File Location" button is also grayed out.
How do I find out where this shortcut is really pointing? I have tried starting python.exe and pythonw.exe both in C:\Python25, but neither starts up IDLE.
There's a file called idle.py in your Python installation directory in Lib\idlelib\idle.py.
If you run that file with Python, then IDLE should start.
c:\Python25\pythonw.exe c:\Python25\Lib\idlelib\idle.py
In Python 3.2.2, I found \Python32\Lib\idlelib\idle.bat which was useful because it would let me open python files supplied as args in IDLE.
Here's another path you can use. I'm not sure if this is part of the standard distribution or if the file is automatically created on first use of the IDLE.
C:\Python25\Lib\idlelib\idle.pyw
If you just have a Python shell running, type:
import idlelib.PyShell
idlelib.PyShell.main()
there is a .bat script to start it (python 2.7).
c:\Python27\Lib\idlelib\idle.bat
Python installation folder > Lib > idlelib > idle.pyw
Double click on it and you're good to go.
You can also assign hotkeys to Windows shortcuts directly (at least in Windows 95 you could, I haven't checked again since then, but I think the option should be still there ^_^).
The idle shortcut is an "Advertised Shortcut" which breaks certain features like the "find target" button. Google for more info.
You can view the link with a hex editor or download LNK Parser to see where it points to.
In my case it runs:
..\..\..\..\..\Python27\pythonw.exe "C:\Python27\Lib\idlelib\idle.pyw"
I setup a short cut (using windows) and set the target to
C:\Python36\pythonw.exe c:/python36/Lib/idlelib/idle.py
works great
Also found this works
with open('FILE.py') as f:
exec(f.read())
Another option for Windows that will automatically use the most recent version of Python installed, and also doesn't make you look for the installation path:
Target: pyw -m idlelib
Start in: Wherever you want
I got a shortcut for Idle (Python GUI).
Click on Window icon at the bottom left or use Window Key (only Python 2), you will see Idle (Python GUI) icon
Right click on the icon then more
Open File Location
A new window will appears, and you will see the shortcut of Idle (Python GUI)
Right click, hold down and pull out to desktop to create a shortcut of Python GUI on desktop.
Python installation folder > Lib > idlelib > idle.pyw
send a shortcut to desktop.
From the desktop shortcut you can add it to taskbar too for quickaccess.
Hope this helps.
If it's installed on windows 10 without changing default location, it seem it is in "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.1776.0x64__{BUNCHOFRANDOMSTRINGS}"
and you won't be able to open it.
Good luck finding how open .py by default with idle.