Hopefully this should be simple. Python environment is running fine if I open PowerShell v3 manually. I can check version and run external scripts etc. But as soon as I open powershell.exe through subprocess.Popen from a python script from another application, python simply won't run; "The term 'Python' is not recognised as the name of a cmdlet, function, script file or operable program... etc"
I've checked my environment paths repeatedly and python is running fine on the system in general.
anyone has any idea what this could be caused by?
subprocess.Popen(["powershell.exe", '-ExecutionPolicy', 'RemoteSigned', "path to PS1_script_with python command"])
My PS1 file looks like this:
cd C:\Users\David\Geeknote\geeknote-master\geeknote
python gnsync.py --path "C:\Users\David\Desktop\C4DtoEvernote", --mask "*.nfo", --notebook "Python Logs"
function Pause{Read-Host 'You have successfully synced your C4D Annotations to Evernote using gnsync.
Please press Enter to continue...' | Out-Null}
Pause{}
It seems (for whatever reason) your $PATH is not being read or honored by the process; and thus python cannot be found.
You can either:
Set up the path with $env:Path = "C:\Python27:C:\Python27\Scripts";
Setup the path using a custom console profile (ie, a .ps1 file) and passing it with -PSConsoleFile.
The simplest option, pass the full path to the Python executable in your command file C:\Python27\python.exe gsync.py ...
I would try #3, and then see if you need the other options.
Adjust the paths as appropriate - especially if you have multiple Python interpreters installed.
Related
I'm following along with Google's Python class, and the person in the videos always runs his scripts from the interactive session in command line using "./". Whenever I try it, I just get a syntax error. How can I use ./ to run scripts? I'm using Windows 10
To run a script from the command line you need to use the syntax
python3 script.py
Now on Unix systems, it's possible to add a shebang to the first line of the script as followings
#!/usr/bin/env python3
This then allows the shell syntax './name.py' to work. But windows doesn't have this mechanism. Instead, you need to create an 'association' between the .py extension and the python executable ('right click', 'open with'). Or just use the full syntax. Both require the python executable to be in your path, and generally on windows both python 2 and 3 will have the same executable name
I have a problem and hope someone can help me. I am currently trying to write a script for Termux or Termux:Task. My script currently looks like this:
#!/data/data/com.termux/files/usr/bin/bash
cd /./sdcard/www/public/
wp post list sleep 5
Every time I load the script I get the following error message:
/data/data/com.termux/files/usr/bin/wp: /usr/bin/env: bad interpreter: No such file or directory.
I've been looking for a solution to my problem for hours, unfortunately without success.
I am using an extension for Termux called "WordPress CLI". When I start termux and enter the commands individually, everything works. But as soon as I write the commands into a sh script and start it doesn't work anymore. :(
Can anyone help me?
Thanks a lot
This is simple error you can fix it by replacing !/data/data/com.termux/files/usr/bin/bash. With #!/data/data/com.termux/files/usr/bin/bash
Please tell if you get error again
Try with #!/usr/bin/env bash in the shebang line.
Termux-exec allows you to execute scripts with shebangs for traditional Unix file structures. So shebangs like #!/bin/sh and #!/usr/bin/env python should be able to run without termux-fix-shebang.
From https://wiki.termux.com/wiki/Termux-exec
According to doc:
Why do I keep getting a '/bin/sh bad interpreter' error?
This error is thrown due to access script interpreter at nonexistent
location.
Termux does not have common directories like /bin, /sbin, /usr/bin at
their standard place. There is an exception for certain devices where
/bin is a symbolic link to /system/bin, but that does not make a
difference.
Interpreters should be accessed at this directory only:
/data/data/com.termux/files/usr/bin
There are three ways to fix this:
Install termux-exec by using pkg install termux-exec. It won’t affect the current session, but after a restart should work without
any setup. Not needed if your Termux is up to date. If still not
working, try the next workaround.
Use command termux-fix-shebang to fix the shebang line of specified file.
Use termux-chroot from package proot to setup a chroot environment mimicking a normal Linux file system in Termux.
termux-fix-shebang my_script.py of second method work for me, which it modify the shebang(first line of my_script.py) from #!/usr/bin/env python to #!/data/data/com.termux/files/usr/bin/env python. Since /usr/bin/ is not exist in Android, that's why it throws the error /usr/bin/env: bad interpreter: No such file or directory. The other solution is run with python my_script.py, neither of my_script.py nor ./my_script.py.
In my test, termux-exec of the first method only work if I added correct shebang in main script(child OR child of child script no need) and ran command export LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec.so.
And for the issue of this question, error shows /usr/bin/env in the middle with /data/data/com.termux/files/usr/bin/wp even though the shebang of script #!/data/data/com.termux/files/usr/bin/bash looks ok, it means that wp command (located at /data/data/com.termux/files/usr/bin/wp) used inside the script contains shebang #!/usr/bin/env wp and should modify it to #!/data/data/com.termux/files/usr/bin/env wp too. termux-exec of first method should fix this specific case too(already has correct shebang in main script).
This is the first time I tried doing a shell script.
So this is what I got for now:
$pdf = read-host "enter the pdf name"
cmd /k C:\the path\\./PDF_ID.py $pdf /all> C:\the path\data.txt
C:\the path\pdf.py
So the first python script is executed and it saves the output to the data.txt but I dont know how to run the second python script that analyzes data.txt and outputs if the pdf file contains malware or not.
If you are able to run Python from Powershell, then python <scriptName>.py will get your job done.
You can give the full path of the Python executable within the command line (incase not working). You could check and ensure that your python executable path is available in your system variables.
If you are not looking from any concurrent solution, then directly put these two inside your samplePS1 file:
python firstscript.py ;
python secondscript.py ;
Note: If you want to pass arguments , then you can pass the arguments also. This is a sequential execution.
Hope it helps you.
I have a python script that I want to execute from the terminal, but I don't want to use the command pythonscriptName.py, instead, I'd like to just type scriptName. Is that possible? If it is, how?
I had a look in here and here, but it doesn't work (probably because I'm on a different os).
I'm using python 2.7.9 on osx Yosemite (10.10.3).
Put this as the first line in your Python script:
#!/usr/bin/python
(or wherever your Python interpreter lives).
Then give the script the executable bit:
chmod +x scriptName.py
Now you should be able to execute it like ./scriptName.py. You can then put a symlink without the .py extension somewhere in your path.
I am trying to run my celcius.py file but I don't know what to type in the command line...
When I type Python celcius.py it does not work:
I get the following message:
>>> python celcius.py
File "<stdin>", line 1
python celcius.py
^
SyntaxError: invalid syntax
>>>
When I open it the program with the Python IDLE GUI it runs the program and closes the program before I can see it. I read somewhere that it won't close if you run it from the command line.
You need to type "python celsius.py" in the windows command prompt, rather than the Python command prompt; this only works straight away if the Python directory is in your PATH. It probably isn't, so you need to use this instead: C:\Python27\python.exe celsius.py.
Because celsius for you is in the same folder as python, you can do this as well:
CD C:\Python27
python.exe celsius.py
In general, change the directory (CD) to where your file is stored, then run C:\Python27\python.exe <filename>
Double-clicking is generally easier in Windows, though, assuming it is set up to do that (it normally is unless you change it back)
There are a few ways of doing this.
WAY 1
step one: Open command prompt (go to start and type in "cmd") *NOTE: do NOT open python. if you see ">>>" in your command prompt window you opened python. This is bad.
step two: type in this: python "path\to\file\celcius.py" replacing path\to\file with the path (starting with the name of the folder that you're computer user is named. So for my computer that would be ben. So let's say my celcius.py is located on the desktop I would run python "Desktop\celcius.py" and hit <.enter.>. It looks like you have celcius.py in your python folder. Don't put it there. that's the system files for python itself. move it to your desktop or your documents folder. By the way, if you have truble using this, make sure you're system is set up to execute the python command. Go here for reference.
WAY 2
assuming you have python associated with the .py file in explorer, you can find the file and double-click on it.
WAY 3
open IDLE (you can usually find it in your list of programs in start). Open the python file through IDLE. This will show you the source code for your program. hit <.F5.>. F5 will execute the program from within the the IDLE shell.
You don't need to do this, just open the command prompt and type:
python path/to/your/file.py
Just make sure that python command is set in your environment PATH, check this