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Improve Windows installer fallback for Python 3.13

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thePR0M3TH3AN
2025-07-06 21:28:04 -04:00
parent ff8f4f796b
commit dcd7cc8329
2 changed files with 53 additions and 3 deletions
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49
scripts/install.ps1
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@@ -100,6 +100,27 @@ function Get-PythonCommand {
return $null
}
# Try to locate a specific Python version using the `py` launcher or
# versioned executables like `python3.12`.
function Get-PythonCommandByVersion {
param([string]$Version)
$cmd = Get-Command py -ErrorAction SilentlyContinue
if ($cmd) {
$out = & $cmd -$Version --version 2>&1
if ($LASTEXITCODE -eq 0 -and $out -match '^Python') {
return @('py', "-$Version")
}
}
$cmd = Get-Command "python$Version" -ErrorAction SilentlyContinue
if ($cmd) {
$out = & $cmd --version 2>&1
if ($LASTEXITCODE -eq 0 -and $out -match '^Python') {
return ,("python$Version")
}
}
return $null
}
$PythonCmd = Get-PythonCommand
if (-not $PythonCmd) {
Write-Warning "Python 3 is not installed. Attempting to install..."
@@ -133,6 +154,34 @@ if ($pyVersion -and $pyVersion.Major -eq 3 -and $pyVersion.Minor -ge 13) {
# Ensure C++ build tools are available before installing dependencies
Ensure-BuildTools
# If build tools are still missing and Python 3.13+ is in use, try to
# install Python 3.12 automatically since many packages lack wheels for
# newer versions.
$buildOk = Get-Command cl.exe -ErrorAction SilentlyContinue
if (-not $buildOk -and $pyVersion -and $pyVersion.Major -eq 3 -and $pyVersion.Minor -ge 13) {
Write-Warning "No Microsoft C++ Build Tools detected and Python $pyVersionString is in use."
Write-Info "Attempting to install Python 3.12 for compatibility..."
if (Get-Command winget -ErrorAction SilentlyContinue) {
try { winget install --id Python.Python.3.12 -e --source winget -h } catch { Write-Warning "Failed to install Python 3.12 via winget." }
} elseif (Get-Command choco -ErrorAction SilentlyContinue) {
try { choco install python --version=3.12 -y } catch { Write-Warning "Failed to install Python 3.12 via Chocolatey." }
} elseif (Get-Command scoop -ErrorAction SilentlyContinue) {
try { scoop install python@3.12 } catch { Write-Warning "Failed to install Python 3.12 via Scoop." }
} else {
Write-Warning "Please install Python 3.12 manually from https://www.python.org/downloads/windows/"
}
$env:Path = [System.Environment]::GetEnvironmentVariable('Path','Machine') + ';' +
[System.Environment]::GetEnvironmentVariable('Path','User')
$py12 = Get-PythonCommandByVersion '3.12'
if ($py12) {
Write-Info "Using Python 3.12 for installation."
$PythonCmd = $py12
} else {
Write-Warning "Python 3.12 not found after installation attempt."
}
}
# 2. Clone or update the repository
if (Test-Path (Join-Path $InstallDir ".git")) {
Write-Info "SeedPass directory found. Fetching updates and switching to '$Branch' branch..."