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fix installer for externally managed Python

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This commit is contained in:
chengyongru
2026-06-17 00:48:13 +08:00
committed by Xubin Ren
parent 4c5e340186
commit 43eb658a0b
6 changed files with 386 additions and 74 deletions
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scripts/install.ps1
+180 -35
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@@ -11,6 +11,9 @@ $Package = "nanobot-ai"
$MainSource = "https://github.com/HKUDS/nanobot/archive/refs/heads/main.zip"
$InstallTarget = $Package
$InstallSource = "PyPI"
$script:NanobotRunner = $null
$script:NanobotPython = $null
$script:LastInstallSucceeded = $false
function Write-Info {
param([string]$Message)
@@ -23,13 +26,15 @@ function Fail {
}
function Show-InstallFailureHint {
[Console]::Error.WriteLine("Error: pip could not install nanobot from $InstallSource.")
[Console]::Error.WriteLine("If pip mentioned externally-managed-environment, install in a virtual environment or use uv/pipx.")
[Console]::Error.WriteLine("Error: could not install nanobot from $InstallSource.")
[Console]::Error.WriteLine("If pip mentioned externally-managed-environment, use uv, pipx, or a virtual environment instead of system pip.")
[Console]::Error.WriteLine("You can also run manually:")
[Console]::Error.WriteLine(" $Python -m pip install --upgrade $InstallTarget")
[Console]::Error.WriteLine(" uv tool install --force --upgrade $InstallTarget")
[Console]::Error.WriteLine(" $Python -m venv `$HOME\.nanobot\venv")
[Console]::Error.WriteLine(" `$HOME\.nanobot\venv\Scripts\python.exe -m pip install --upgrade $InstallTarget")
[Console]::Error.WriteLine("Then start setup with:")
[Console]::Error.WriteLine(" $Python -m nanobot onboard --wizard")
throw "pip could not install nanobot from $InstallSource"
[Console]::Error.WriteLine(" nanobot onboard --wizard")
throw "could not install nanobot from $InstallSource"
}
function Show-Usage {
@@ -72,6 +77,131 @@ function Find-Python {
Fail "Python 3.11 or newer was not found. Install Python first, then rerun this command."
}
function Test-VirtualEnv {
param([string]$Command)
try {
& $Command -c "import sys; raise SystemExit(0 if sys.prefix != sys.base_prefix else 1)" *> $null
return $LASTEXITCODE -eq 0
} catch {
return $false
}
}
function Ensure-Pip {
param([string]$Command)
try {
& $Command -m pip --version *> $null
} catch {}
if ($LASTEXITCODE -eq 0) {
return
}
Write-Info "pip was not found for $Command. Trying ensurepip..."
& $Command -m ensurepip --upgrade *> $null
if ($LASTEXITCODE -ne 0) {
Fail "pip is not available. Install pip for $Command, then rerun this command."
}
}
function Invoke-Nanobot {
param([string[]]$NanobotArgs)
switch ($script:NanobotRunner) {
"uv" {
& uv tool run --from $InstallTarget nanobot @NanobotArgs
}
"pipx" {
& pipx run --spec $InstallTarget nanobot @NanobotArgs
}
"python" {
& $script:NanobotPython -m nanobot @NanobotArgs
}
default {
Fail "nanobot was installed, but no runner was configured."
}
}
}
function Get-NanobotCommand {
switch ($script:NanobotRunner) {
"uv" { return "uv tool run --from $InstallTarget nanobot" }
"pipx" { return "pipx run --spec $InstallTarget nanobot" }
"python" { return "$script:NanobotPython -m nanobot" }
default { return "nanobot" }
}
}
function Install-WithActivePython {
Write-Info "Detected an active virtual environment. Installing into it..."
Ensure-Pip $Python
& $Python -m pip install --upgrade $InstallTarget
if ($LASTEXITCODE -ne 0) {
Show-InstallFailureHint
}
$script:NanobotRunner = "python"
$script:NanobotPython = $Python
}
function Install-WithUv {
$script:LastInstallSucceeded = $false
Write-Info "Installing or upgrading nanobot from $InstallSource with uv tool..."
& uv tool install --python $Python --force --upgrade $InstallTarget
if ($LASTEXITCODE -ne 0) {
return
}
$script:NanobotRunner = "uv"
$script:LastInstallSucceeded = $true
}
function Install-WithPipx {
$script:LastInstallSucceeded = $false
Write-Info "Installing or upgrading nanobot from $InstallSource with pipx..."
& pipx install --python $Python --force $InstallTarget
if ($LASTEXITCODE -ne 0) {
return
}
$script:NanobotRunner = "pipx"
$script:LastInstallSucceeded = $true
}
function Install-WithManagedVenv {
$HomeDir = if ($env:HOME) { $env:HOME } elseif ($env:USERPROFILE) { $env:USERPROFILE } else { $null }
if (-not $HomeDir) {
Fail "HOME is not set; cannot create a managed virtual environment."
}
$VenvDir = if ($env:NANOBOT_VENV) { $env:NANOBOT_VENV } else { Join-Path $HomeDir ".nanobot\venv" }
$VenvPython = Join-Path $VenvDir "Scripts\python.exe"
if (-not (Test-Path $VenvPython)) {
Write-Info "Creating a dedicated virtual environment at $VenvDir..."
$Parent = Split-Path -Parent $VenvDir
if ($Parent) {
New-Item -ItemType Directory -Force -Path $Parent *> $null
}
& $Python -m venv $VenvDir
if ($LASTEXITCODE -ne 0) {
Show-InstallFailureHint
}
}
if (-not (Test-Python $VenvPython)) {
Fail "The managed venv uses Python older than 3.11. Remove it or set NANOBOT_VENV to a new path."
}
Write-Info "Installing or upgrading nanobot from $InstallSource in $VenvDir..."
Ensure-Pip $VenvPython
& $VenvPython -m pip install --upgrade $InstallTarget
if ($LASTEXITCODE -ne 0) {
Show-InstallFailureHint
}
$script:NanobotRunner = "python"
$script:NanobotPython = $VenvPython
}
foreach ($Arg in $RemainingArgs) {
switch ($Arg) {
"--dev" {
@@ -103,61 +233,76 @@ $Python = Find-Python
$Version = & $Python --version
Write-Info "Using Python: $Version"
try {
& $Python -m pip --version *> $null
} catch {}
if ($LASTEXITCODE -ne 0) {
if ($DryRun) {
Write-Info "Dry run: pip was not found. Install would try: $Python -m ensurepip --upgrade"
} else {
Write-Info "pip was not found for this Python. Trying ensurepip..."
& $Python -m ensurepip --upgrade *> $null
if ($LASTEXITCODE -ne 0) {
Fail "pip is not available. Install pip for $Python, then rerun this command."
}
}
}
if ($DryRun) {
Write-Info "Dry run: would install or upgrade nanobot from $InstallSource."
Write-Info "Dry run: would run: $Python -m pip install --upgrade $InstallTarget"
Write-Info "Dry run: if that fails because system site-packages are not writable, would retry: $Python -m pip install --user --upgrade $InstallTarget"
if (Test-VirtualEnv $Python) {
Write-Info "Dry run: active virtual environment detected; would run: $Python -m pip install --upgrade $InstallTarget"
Write-Info "Dry run: would run nanobot as: $Python -m nanobot"
} elseif (Get-Command uv -ErrorAction SilentlyContinue) {
Write-Info "Dry run: would run: uv tool install --python $Python --force --upgrade $InstallTarget"
Write-Info "Dry run: would run nanobot as: uv tool run --from $InstallTarget nanobot"
} elseif (Get-Command pipx -ErrorAction SilentlyContinue) {
Write-Info "Dry run: would run: pipx install --python $Python --force $InstallTarget"
Write-Info "Dry run: would run nanobot as: pipx run --spec $InstallTarget nanobot"
} else {
$HomeDir = if ($env:HOME) { $env:HOME } elseif ($env:USERPROFILE) { $env:USERPROFILE } else { "~" }
$VenvDir = if ($env:NANOBOT_VENV) { $env:NANOBOT_VENV } else { Join-Path $HomeDir ".nanobot\venv" }
Write-Info "Dry run: would create or reuse a dedicated virtual environment: $VenvDir"
Write-Info "Dry run: would run: $VenvDir\Scripts\python.exe -m pip install --upgrade $InstallTarget"
Write-Info "Dry run: would run nanobot as: $VenvDir\Scripts\python.exe -m nanobot"
}
if ($env:NANOBOT_SKIP_WIZARD -eq "1") {
Write-Info "Dry run: would skip setup wizard because NANOBOT_SKIP_WIZARD=1."
} else {
Write-Info "Dry run: would run: $Python -m nanobot onboard --wizard"
Write-Info "Dry run: would run the setup wizard."
}
Write-Info "Dry run: no changes made."
return
}
Write-Info "Installing or upgrading nanobot from $InstallSource..."
& $Python -m pip install --upgrade $InstallTarget
if ($LASTEXITCODE -ne 0) {
Write-Info "Install failed. Retrying as a user install..."
& $Python -m pip install --user --upgrade $InstallTarget
if ($LASTEXITCODE -ne 0) {
Show-InstallFailureHint
if (Test-VirtualEnv $Python) {
Install-WithActivePython
} else {
$Installed = $false
if (Get-Command uv -ErrorAction SilentlyContinue) {
Install-WithUv
$Installed = $script:LastInstallSucceeded
if (-not $Installed) {
Write-Info "uv tool install failed. Trying the next isolated install method..."
}
}
if (-not $Installed -and (Get-Command pipx -ErrorAction SilentlyContinue)) {
Install-WithPipx
$Installed = $script:LastInstallSucceeded
if (-not $Installed) {
Write-Info "pipx install failed. Trying the managed virtual environment..."
}
}
if (-not $Installed) {
Write-Info "Using a dedicated virtual environment to avoid system pip."
Install-WithManagedVenv
}
}
Write-Info "Installed nanobot:"
& $Python -m nanobot --version
Invoke-Nanobot @("--version")
if ($LASTEXITCODE -ne 0) {
Fail "nanobot was installed, but the command could not be started."
}
if ($env:NANOBOT_SKIP_WIZARD -eq "1") {
Write-Info "Skipping setup wizard because NANOBOT_SKIP_WIZARD=1."
Write-Info "Run this later: $Python -m nanobot onboard --wizard"
Write-Info "Run this later: $(Get-NanobotCommand) onboard --wizard"
return
}
Write-Info "Starting setup wizard..."
& $Python -m nanobot onboard --wizard
Invoke-Nanobot @("onboard", "--wizard")
if ($LASTEXITCODE -ne 0) {
Fail "Setup wizard did not complete."
}
Write-Info "Done. Try: $Python -m nanobot agent -m `"Hello!`""
Write-Info "Done. Try: $(Get-NanobotCommand) agent -m `"Hello!`""