Execute a powershell file with an absolute path that contains spaces

Question

I'm trying to execute a ps1 file in my python script.

proc = subprocess.Popen(["powershell.exe", 'F:/FOLDER/FOLDER OK/myfile.ps1'])

It stopped at F:/FOLDER/FOLDER so I added additional quotes like this:

proc = subprocess.Popen(["powershell.exe", '"F:/FOLDER/FOLDER OK/myfile.ps1"'])

No error now, but it didn't execute the script either... Any idea?

Possible duplicate of How to run a powershell script with white spaces in path from command line? — bgfvdu3w
– bgfvdu3w, Commented Mar 5, 2018 at 12:55
windows sucks so much sometimes. Have you tried the following workaround: proc = subprocess.Popen(["powershell.exe", 'myfile.ps1'],cwd='F:/FOLDER/FOLDER OK') ? — Jean-François Fabre
– Jean-François Fabre ♦, Commented Mar 5, 2018 at 12:59
@Jean-FrançoisFabre didn't work :/ no error nothing, it just didn't execute the file — Baptiste Arnaud
– Baptiste Arnaud, Commented Mar 5, 2018 at 13:03
@JeffZeitlin Answer is there. Use -File and it will work. This isn't a Python-specific issue or anything from what it seems. — bgfvdu3w
– bgfvdu3w, Commented Mar 5, 2018 at 13:03

mklement0 · Accepted Answer · 2018-03-05 15:38:48Z

3

powershell.exe does not assume that a parameter is automatically a file to execute; you need to identify all parameters. Use the -File switch

proc = subprocess.Popen(["powershell.exe", "-File", r"F:\FOLDER\FOLDER OK\myfile.ps1"])

^{The r in r"..." (for raw) turns off escape-sequence processing so that \ can be used without escaping.}

See PowerShell Command Line Help at Microsoft Docs.

PowerShell[.exe]
       [-Command { - | <script-block> [-args <arg-array>]
                     | <string> [<CommandParameters>] } ]
       [-EncodedCommand <Base64EncodedCommand>]
       [-ExecutionPolicy <ExecutionPolicy>]
       [-File <FilePath> [<Args>]]
       [-InputFormat {Text | XML}] 
       [-Mta]
       [-NoExit]
       [-NoLogo]
       [-NonInteractive] 
       [-NoProfile] 
       [-OutputFormat {Text | XML}] 
       [-PSConsoleFile <FilePath> | -Version <PowerShell version>]
       [-Sta]
       [-WindowStyle <style>]

edited Mar 5, 2018 at 15:38

mklement0

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answered Mar 5, 2018 at 13:04

Jeff Zeitlin

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1 Comment

mklement0 Over a year ago

As an aside: PowerShell Core now defaults to -File, (thought it never hurts to be explicit; the change was necessary to support Unix shebang lines).

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