Snek

PowerShell wrapper around Python for .NET to invoke Python from PowerShell

Install snek

Install-Module snek

Requirements

• Python v2.7, v3.5, v3.6, or v3.7 (defaults to python 3.7)

Functions

• Use-Python
• Invoke-Python
• Import-PythonRuntime
• Import-PythonPackage
• Install-PythonPackage
• Uninstall-PythonPackage
• Use-PythonScope
• Set-PythonVariable

Invoke Python Code (v3.7)

Use-Python { 
    Invoke-Python -Code "print('hi!')" 
}
    
hi!

Invoke Python Code (v2.7)

PS > Use-Python { 
    Invoke-Python -Code "print('hi!')" 
} -Version v2.7
    
hi!

Returning A Value from Python to PowerShell

Due to the use of dynamic the type must be cast to the expected type so you need to specify the -ReturnType parameter to do so.

Use-Python {
    Invoke-Python "'Hello'" -ReturnType ([String])
}

Imports the numpy Python module and does some math

Access methods of modules directly!

Use-Python {
    $np = Import-PythonPackage "numpy"
    [float]$np.cos($np.pi * 2)

    [float]$np.sin(5)
    [float]($np.cos(5) + $np.sin(5))
} -Version v3.7

Output

1
-0.9589243
-0.6752621

Manage pip

Format is Install-PythonPackage <package>

Install-PythonPackage requests

Or similarly:

Uninstall-PythonPackage requests

Using Scopes

You can use Python scopes to string together multiple Invoke-Python calls or to pass in variables from PowerShell.

Use-Python {
    Use-PythonScope {
        Invoke-Python -Code "import sys" 
        Invoke-Python -Code "sys.version" -ReturnType ([string]) 
    }
}

Passing a .NET Object to Python

class Person {
    [string]$FirstName
    [string]$LastName
}

Use-Python {
    Use-PythonScope {
        $Person = [Person]::new()
        $Person.FirstName = "Adam"
        $Person.LastName = "Driscoll"
        Set-PythonVariable -Name "person" -Value $Person

        Invoke-Python -Code "person.FirstName + ' ' + person.LastName" -ReturnType ([string])
    }
}