I have a technical questions on python script.
I have developed code on my laptop and I want to move it in another one.
I installed python there, put when I try to double click on the .py file it is not working. Like the cmd screen goes away in a second.
Do you know why?
(if I open python through cmd it is working, so it is in path and it works)
What is probably happening is that there is an error being thrown on your new computer which causes command prompt to just instantly close.
The best way to run a python script is from an open command prompt/terminal. To do this open a command prompt and move into the directory of your python file. For example, if the file you are trying to run is located at C:\Users\Davide\PythonScripts, then open a command prompt and type
cd C:\Users\Davide\PythonScripts
Now your command window is in the folder that you want to run files out of.
Next you want to tell Python to run your script. This can be done by typing "python ". For example, if your script is name my_script.py, you would type
python my_script.py
What this is doing is telling your computer "open an instance of Python where you are running my_script.py." If there are any errors thrown, the command window will stay open after python closes and you can see what is going on.
Most likely, there is a package you are trying to import which it cannot find because it was not installed on your other computer. If at the top of your file you have "import xxx" or "from xxx import yyy" lines, your other computer might not be finding those modules and just throwing an error that instantly closes command prompt when you just double click the .py file.
Related
I'm running windows
I've got a python script that works as expected when I run it from my interpreter (Anaconda, i think that's an interpreter...), but when I run it from my file manager by double clicking the script ("script.py") I see a quick black screen flash, but nothing else. I'm using the input() function, so that's not the issue.
When I try the same thing with a simple test script, which is just the print() function and the input function, the command line or terminal screen, whatever the black screen is called, displays my printed string and closes only after I press enter.
I believe my issue has to do with file paths and working directories, but I'm a noob and I don't know how to solve this. My script declares this variable:
inv_folder=r"C:\Users\domin\OneDrive\Desktop\Test Folder" #folder to look for completed recipe files
which I believe is an absolute filepath. I then loop through the files in that folder and open and read them
for filename in os.listdir(inv_folder):
Main goal is to send my script to someone else's computer, and allow them to run it simply by double clicking on the file. Trying to do that on my computer and failing
Doubleclicking the .py file in Windows will generally run the file. In your case, if all your script is doing is looking for a directory and looping through files in it, it is quite possible that the script is working correctly, but that it is closing immediately upon completing the script.
E.g. if you have the following python file hello.py with the single line of code.
print("hello world")
If you doubleclick hello.py, you will only see a black window flash for a second, as the program runs and exits.
To check whether your code is working correctly or not, you are best to navigate to that folder in your command prompt and run the program within the command prompt. E.g. typing "hello.py" in the right folder will then show the correct output in the console.
Try running it in the console first, seeing if the code is giving any errors, and then working from there. But the behaviour you are describing is basically standard Windows behaviour and not necessarily an error.
If you need to pause the window after running, please see the following StackOverflow question and answers about "Python Equivalent to System('PAUSE')"
Have you considered to compile it?
You can compile it easily with pyinstaller and this command:
C:\<path_to_python>\Scripts\pyinstaller.exe --onefile -n <your script name> <your script path>
Of course replace the <> with the relevant paths for you.
Path must be messed up and I can't fix it.
In the command prompt I am trying to open and run a python program that I made in IDLE. I am running Python 3.8.5. According to Automate the Boring Stuff, I should just be able to do:
py birthdays.py
But when I do that I get:
C:\Users\name\AppData\Local\Programs\Python\Python38-32\python.exe: can't open file 'birtdays.py': [Errno 2] No such file or directory
All of my scripts are located in: C:\Users\henri\AppData\Local\Programs\Python\Python38-32.
The only thing that I could think of is that it is going one step too far and searching in python.exe instead of just Python38-32. But Ii'm not even sure it works like that.
I tried to add the exact path using:
set PATH=%PATH%;C:\Users\name\AppData\Local\Programs\Python\Python38-32
But when I do this and press enter nothing happens.
when I want to use CMD to run python scripts, I just use
cd\
to back the main root of drive C. then use
cd folderAddress
for several time until to reach the exact scrip containing folder. Finally, I type
python scriptName.py
In your command prompt type python.The output should be python 3.** (depending on your python version).
If you see the python version it's working fine. In command prompt navigate to the folder that you have your python file using cmd command. then type
python birtdays.py
Don't forget the space after python.
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!
I use Adobe products (such as Premiere Pro/Photoshop) a lot and wanted to have Discord Rich Presence implementation.
I found a very useful python script for this: https://github.com/smokes/adobe-rpc
If I manually execute it (opens command prompt) it works perfectly fine, it detects my Discord and Premiere Pro/Photoshop and displays it correctly in Discord.
However I wanted to run this script when I launch Premiere Pro/Photoshop so I used a batch file for this:
#echo off
start "Premiere Pro" "C:\Program Files\Adobe\Adobe Premiere Pro CC 2019\Adobe Premiere Pro.exe"
ping -n 20 localhost
python "E:\Software\Python\Adobe Discord Rich Presence\adobe-rpc-master\rpc.py"
It opens the script as it should but when it actually launches the script, the script can not find Discord or the Adobe software.
It just states "Run Adobe/Discord App".
I have tested the script by opening a fresh Command Prompt and dragging the script in: same result as stated above. It can not find Discord or the Adobe software.
This is very strange to me as I can perfectly run it if I open it manually but not if I run it in the Command Prompt?
Furthermore, Python does not give an actual error message, just the "error message" that is built inside the script.
When I launch it manually, it opens in the Command Prompt so I am very confused as to why this happens.
Can anyone explain this/help me?
I am very new to the Command Prompt and Python.
Warning! This is comment and maybe answer both!
First of all: do you have Python 3.4>= added in PATH? If not add.
Second: Do you followed instructions in README.md? If not follow!
Third: Which Adoble application do you use and is it available in adobe-rpc's repository? If not then wait for next update of adobe-rpc.
Fourth: Try to open script in it's directory and this is how:
Go to script's folder
Hold SHIFT and click RMB, also called Right Button Mouse. In menu Open Command Prompt here or Open Powershell here must be displayed.
If Open Command Prompt here is displayed instead of Open Powershell here, click it.
Now do: python scriptname.py ~ I don't know that script usage and if it requires arguments, just do python scriptname.py arguments.
If Open Powershell here is displayed instead of Open Command Prompt here. Go back, but first copy directory.
Then press WIN+R and in Run input type cmd.
In Command Prompt(CMD) type cd and paste your directory, then hit Enter.
Now do same as in 4. line.
Maybe this would help.
Otherwise I don't know.
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