I have a python file named "python_file.py" and I want to run it with a command line such as "python python_file.py" by typing it in the terminal, and not in the python console. I succeed one time, but when I change my working directory, it no longer works.
When I tried, it displays something like "python isn't known as a intern program, a runnable program or a command file".
And I'm using Python 3.7.
Can someone help me ?
You need to create a run/debug configuration, as explained in the official help:
Click on the button left of the green arrow symbol (the green arrow might be greyed out, but that's fine):
Click on Edit Configurations.
Click on the + symbol
Click on Python.
On the right side, enter/activate the following:
Name (a string that describes your according project)
Single instance only (this is less complicated for you)
Click on the Configuration tab.
Select a type of target from the Script path/Module name
Enter the path to your Python script in the according box.
Select the Python interpreter (Python 3.x will be fine).
In the Execution section, select either Emulate terminal in output console or Run with Python console.
Apply the changes and close the dialog.
Click on the button left of the green arrow symbol to run your program from the internal command line.
Related
I've installed VSC and added to it the C/C++ and CodeRunner extensions, and it all worked perfectly. I've set CodeRunner to run in Terminal and I haven't done much else to the settings.
However, I installed the Python extension now, and the CodeRunner 'Run' button displays 2 options when I click it: Run Code and Run Python File in Terminal. When I was running a C program previously, one click on 'Run' would do it.
Is there any way to eliminate the extra options when running Python code? Essentially, I just want the program to execute with one click on 'Run'. Seems like the code executes regardless of the option I choose. (See the attached picture). Thank you.
Reason:
In VS Code, the green run button provided by the "Python" extension is to execute the command "Run Python File in Terminal". It only requires us to click once to run python files in the Terminal of VS Code:
When we also use the extension "Code Runner", the run button ("Run Code") provided by it defaults to output results in "OUTPUT". In the previous use, this button will cover the green button provided by the "python" extension, but now that they are integrated, we can choose the execution method.
For setting "code-runner.runInTerminal": false, it determines whether the "code runner" runs in the "Terminal", the commands they execute are different:
"Run Code"：python -u "/python_file.py"
"Run Python File in Terminal": /python.exe /python_file.py
Solution: You could use F5 to debug the code or try to close the "Code Runner" extension. (Click "Enable" to restore the use of the extension.)
Reference: Run Python File in VS Code.
The thing is that, it never asked me this before, is there a way to fix this? Because clicking 2 times the start button to run the program is a little annoying. Thanks!
In VS Code, the green run button provided by the "Python" extension is to execute the command "Run Python File in Terminal". It only requires us to click once to run python files in the Terminal of VS Code:
If you also use other extensions, such as: "Code Runner", the run button ("Run Code") provided by it defaults to output results in "OUTPUT". In the previous use, this button will cover the green button provided by the "python" extension, but now that they are integrated, we can choose the execution method.
You could use F5 to debug the code or try to close the "Code Runner" extension. (Click "Enable" to restore the use of the extension.)
I'm unable to find/execute the interactive mode in visual studio code - could you guys step-by-step me? Seems like a ridiculous question, I guess, but none of the waypoints I Googled seem to work;
"View > Other Windows > Interactive menu commands)" https://learn.microsoft.com/en-us/visualstudio/python/python-interactive-repl-in-visual-studio?view=vs-2019
I don't have "other windows"
If there's something I need to install, please let me know.
(Yes, I'm a beginner).
In VSCode, you can enter the Python interactive window in the following places:
Option 1
F1 -> Python: Create Python Interactive Window
This is the Python interactive window that comes with VSCode.
You can enter the interactive window without inputting instructions.
Please use "Ctrl+Enter" to execute the code:
Option 2
Ctrl + Shift + `
This is the cmd window that comes with the VSCode integration computer.
We need to enter the command "python" to enter the Python interactive window:
PS
For more information about using Python in Visual Studio Code, you can refer to the official VSCode documentation: Python in VSCode.
If you have the Python extension, you can use the Python Interactive feature (this is a IPython/Jupyter console, which can run parts of your code as 'cells', i.e. snippets of code executed in one go).
This article writes about the interactive window and many more possibilities of using Jupyter in VS Code: https://code.visualstudio.com/docs/python/jupyter-support-py
Best option
When editing Python code, select something and press Shift + Enter. This will open the interactive window and run your selection as a single cell.
I have personally been annoyed many times by accidentally pressing Shift + Enter instead of Enter on a line of code which (alone) would be a syntax error. Then, one day I decided to start using this feature consciously.
Terminal fallback
Press:
Ctrl+`
This opens a system shell (bash, or on Windows: Powershell or cmd).
Run python, or ipython if you have it (pip install ipython), and use the interactive window. In the terminal, you can also execute your script, by typing python myscript.py arguments.
If you type # %% in your vscode editor while editing a .py file,
then a interactive cell is created and it can be evaluated. The nice part of this is that # denotes comment in a .py file so you can save and run your code as a script
I have downloaded python package from the web (e.g., github).
The usage is via CLI, for example:
python functionality.py opt1 opt2
Since I want to understand what is going on under the hood in functionality.py
I want to be able to debug it line by line.
How can I achieve that using PyCharm?
Sorry for not writing a comment, but I don't have the right.
You could use the package in a simple script (import it). Afterwards, press CTRL+LEFT CLICK on the function/class that you have used in order to see the source code. Now you can put breakpoints my clicking on the space near the line number. The red point indicates that a breakpoint is put.
You can run your script in debug mode using the debugger from the menu up right (second icon) and see what's happening.
Is there a interface in Pycharm where we can simply type in some commands and run it ?
Something like in Matlab, we can type in "a = 1; b = 2; c = a+b" then we get ans=3.
Thanks
PS: we know we can create a python file in Pycharm and run it, e.g., "a = 1; b = 2; c = a+b; print(c)" but it is not as convenient as a command window.
Short answer from the docs:
To launch an interactive console
On the main menu, choose Tools | Run Python console.
Description:
REPL console
PyCharm also helps those who love the full control of an
interactive console: on the Tools menu, you can find commands that
launch the interactive Python or Django consoles. Here you can type
commands and execute them immediately. Moreover, PyCharm's interactive
consoles feature syntax highlighting, code completion, and allow
viewing the history of commands (Ctrl+Alt+E or Up/Down arrows while in
the editor).
PyCharm also makes it possible to run in console source code from the
editor — just make your selection, and then press Shift+Alt+E (Execute
selection in console on the context menu of the selection).
Independent of Pycharm, you can also access the REPL in the terminal (or cmd shell on Windows) by typing
python
at the prompt.
In PyCharm, you navigate to the View -> Tool Windows menu and toggle the Terminal window See image here. It will likely show up at the bottom of your IDE window.
Another very good (and more general option) is to use IDLE. From its Wikipedia entry...
IDLE is intended to be a simple IDE and suitable for beginners, especially in an educational environment. To that end, it is cross-platform, and avoids feature clutter.
It ships with basically every standard version of Python since 1.5.2 so I'm pretty sure you have it available on your system (I've checked with Linux and Mac OS X).
To fire up IDLE in Python2, enter: /path/to/python/bin/idle where /path/to/python/bin is where you find the Python executable.
For Python3, use idle3 instead.
You should see a new separate terminal window open up (with syntax highlighting and all!)See image here.
Find the attached screenshot..
You can observe the o/p of the editor in Run window.
You can also find Python Console and Command Terminal at the bottom of the Pycharm.