从.bat文件运行python脚本并使用Powershell

Question

I run several python scripts on my W10 server and I'm looking for a way to open them all together.

I run manually my scripts opening a PowerShell on the script folder and executing pythonw script.py

I have tried several ways, with no result...

PowerShell -NoProfile -ExecutionPolicy Bypass -Command "& 'C:\Users\pc2\AppData\Local\Programs\Python\Python36-32\pythonw.exe C:\Users\pc2\script.py'"

also tested:

powershell.exe -noexit -command "'pythonw C:\Users\pc2\script.py'"

And:

powershell -command "& {&'C:\Users\pc2\AppData\Local\Programs\Python\Python36-32\pythonw.exe ' C:\Users\pc2\script.py}"

None of the above does anything... they should be opening the script.py file in using pythonw.

Can anyone point me in the correct direction to get this done?

Answer 1

From the powershell console itself, you can directly run like this:

PS C:\Python27> python C:\Users\pc2\script.py

If necessary please edit the PATHTEXT environmental variable in the powershell profile:

$env:PATHEXT += ";.py"

In the batch also you can put the same command to execute the python. Save the file as something.bat :

python C:\Users\pc2\script.py

Hope it helps.

Answer 2

• To execute a single script:

   powershell -c "pythonw 'C:\\Users\\pc2\\script1.py'" 

^{Note: The enclosing '...' around the file path are only needed if the latter contains shell metacharacters such as whitespace.
Alternatively, use ""..."" when calling from cmd.exe (batch file), and `"...`" when calling from PowerShell.}

• To execute multiple scripts, in sequence :

   powershell -c "& { $Args | % { pythonw $_ } } 'C:\\Users\\pc2\\script1.py' 'C:\\Users\\pc2\\script2.py'" 

^{Note: This only works when calling from cmd.exe (batch file).
(From within PowerShell, simply execute what's inside "..." directly)}

---

As for what you tried , focusing just on what command string PowerShell ended up seeing:

• & 'C:\\Users\\pc2\\AppData\\Local\\Programs\\Python\\Python36-32\\pythonw.exe C:\\Users\\pc2\\script.py'

The problem is that you're passing the entire command line to & , whereas it only expects the executable name;
C:\\Users\\pc2\\AppData\\Local\\Programs\\Python\\Python36-32\\pythonw.exe C:\\Users\\pc2\\script.py is obviously not a valid executable name / path.

• 'pythonw C:\\Users\\pc2\\script.py'

By virtue of being enclosed in '...' , this is a string literal , which PowerShell simply outputs as such - no command is ever executed.

• & {&'C:\\Users\\pc2\\AppData\\Local\\Programs\\Python\\Python36-32\\pythonw.exe ' C:\\Users\\pc2\\script.py}

Since you're using a script block ( { ... } ), you're passing C:\\Users\\pc2\\script.py as an argument , so you'd have to refer to it as such inside the block, either via the automatic $Args variable, or via a parameter defined in a param() block.
(As an aside: your file path has an extraneous trailing space, but PowerShell seems to ignore that.)