I wrote the next program:
with open('h.txt','a') as f:
f.write('asd')
when i run it from the cmd (e.g typed C:\Users\USER\PycharmProjects\2016_project\test.py in the cmd)
- no new file was created
but when I double clicked the icon in the windows explorer (I'm with windows (10)) a new text file was created
can someone explain to me what's happening??
and how to bypass this problem?
(p.s. I'm most of the time in school so it may take me a little time to responce)
thanks
Choose the folder and use Python to run. Use like:
cd C:\Users\USER\PycharmProjects\2016_project
python test.py
Related
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'd like to know if there is a way to shorten what must be written on the cmd.exe command line to run Python programs. As it is, I have a program called Calculator.py and if I wanted to run that I would have to write:
python.exe C:\Users\user_name\restofdirectory\Calculator.py
Basically I want to know if I could make the 'Python' folder on my computer default so I could just type python.exe Calculator.py or some other similarly short way of doing it so I didn't have to type the whole directory.
Create a cmd.exe shortcut somewhere handy (Desktop or whatever). Right Click, select properties. Under the Shortcut tab you'll have a "Start In" field. It'll be default to wherever your cmd.exe normally opens. But you can change it to any path you want (So set it to your python development folder)-- then opening that shortcut will always start cmd.exe in the python folder.
You don't need to type python.exe file.py --
Just type: python file.py
So in short, you'd click that shortcut and type python file.py and you are done.
If you have specific scripts you want to run frequently, you can create a cmd.exe shortcut for each one. Set the Start In path to their folder. Then update the link to cmd.exe like this:
c:\path\to\cmd.exe /k python file.py
That will open a cmd prompt and automatically run that specific script
Yes, you can cd into the folder first.
If python is in your default path you can create a folder and put all your python scripts in it. Then cd into that folder and type python Calculator.py. To test if python is in your path simply open up a cmd and type cd \ (which in your case should change your working directory to C:\) then type python. If you get an error saying the command python cannot be found then you have to add python to your path. Other wise you should be able to run cd C:\Users\user_name\restofdirectory\ and then execute the script python Calculator.py
create an environment variable, say, PyPath = C:\Users\user_name\restofdirectory
then your line would be:
python.exe %PyPath%\Calculator.py
or you just cd to C:\Users\user_name\restofdirectory, and run
python.exe Calculator.py
Add Python to your path:
SET PATH=%PATH%;C:\Python27\bin
then you can call python like this:
python myapp.py
If you have the Python Launcher for Windows (comes with Python 3.3+) installed, then it gets even easier. You just need to put shebang in your code:
#! python
The first time you run your code, Windows will pop up a dialog and ask you what program to use to run the script. The Python Launcher should be listed. Just choose that and away you go. Here's a fun little script from the page I linked earlier:
#! python
import sys
sys.stdout.write("hello from Python %s\n" % (sys.version,))
Once my Windows 7 box had the launcher installed and I told it what program to run, I could just call my script from cmd.exe like this:
my_script.py
Note: If you have a version of Python older than 3.3, you can download the installer here
I installed Blender 2.6 and I'm trying to run a script called drawcar.py (Which uses PyOpenGL)
I looked around the documentation for importing a script and could only access Blender's python console.
How do I run drawcar.py from the Linux terminal with Blender?
You can also execute the following code in the python console to execute an external script without opening it up in the text editor:
filename = "/full/path/to/myscript.py"
exec(compile(open(filename).read(), filename, 'exec'))
The above code comes from the following link:
Blender - Tips and Tricks
Open a Text Editor view in Blender.
Press Alt + O, or go to Text>Open Text Block and open the .py file
Then simply press Run script :D
P.s. Instead of opening a file in step 2, you can also hit the "+ New" button and create a new script instead.
Note : In newer versions the Run Script button label has been replaced with a Play icon :
this answer is too late, but to help anyone with the same problem
via the terminal:
blender yourblendfilenameorpath --python drawcar.py
from the man pages
-P or --python <filename>
Run the given Python script file.
To run a script by another script or from console:
import bpy
script = bpy.data.texts["script_name.py"]
exec(script.as_string())
It is likely that drawcar.py is trying to perform pyOpenGL commands inside Blender, and that won't work without modification. I suspect you are getting some import errors too (if you look at the command console). Blender has it's own internal python wrapper for opengl called bgl, which does include a lot of the opengl standards, but all prefixed by bgl.
If you have a link to drawcar.py I can have a look at it and tell you what's going on.
How do I run a Python file from the Windows Command Line (cmd.exe) so that I won't have to re-enter the code each time?
Wouldn't you simply save your Python code into a file, and then execute that file using Python?
Save your code into a file called Test.py.
And then run it?
$ C:\Python24\Python.exe C:\Temp\Test.py
If you don't want to install an IDE, you can also use IDLE which includes a Python editor and a console to test things out, this is part of the standard installation.
If you installed the python.org version, you will see an IDLE (Python GUI) in your start menu. I would recommend adding it to your Quick Launch or your desktop - whatever you are most familiar with. Then right-click on the shortcut you have created and change the "Start in" directory to your project directory or a place you can mess with, not the installation directory which is the default place and probably a bad idea.
When you double-click the shortcut it will launch IDLE, a console in which you can type in Python command and have history, completion, colours and so on. You can also start an editor to create a program file (like mentioned in the other posts). There is even a debugger.
If you saved your application in "test.py", you can start it from the editor itself. Or from the console with execfile("test.py"), import test (if that is a module), or finally from the debugger.
If you put the Python executable (python.exe) on your path, you can invoke your script using python script.py where script.py is the Python file that you want to execute.
Open a command prompt, by pressing Win+R and writing cmd in that , navigate to the script directory , and write : python script.py
A good tool to have is the IPython shell. Not only can it run your program (%run command), but it offers also many tools for using Python interactively in an efficient manner (automatic completion, syntax coloring, quick access to the documentation, good interaction with Matplotlib,…). After you install it, you'll have access to its shell in the Start menu.
You need to create environment variables. Follow the instructions here: http://www.voidspace.org.uk/python/articles/command_line.shtml#environment-variables
In DOS you can use edit to create/modify text files, then execute them by typing python [yourfile]