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| # Sample script to install Python and pip under Windows | ||
| # Authors: Olivier Grisel, Jonathan Helmus, Kyle Kastner, and Alex Willmer | ||
| # License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/ | ||
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| $MINICONDA_URL = "http://repo.continuum.io/miniconda/" | ||
| $BASE_URL = "https://www.python.org/ftp/python/" | ||
| $GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py" | ||
| $GET_PIP_PATH = "C:\get-pip.py" | ||
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| $PYTHON_PRERELEASE_REGEX = @" | ||
| (?x) | ||
| (?<major>\d+) | ||
| \. | ||
| (?<minor>\d+) | ||
| \. | ||
| (?<micro>\d+) | ||
| (?<prerelease>[a-z]{1,2}\d+) | ||
| "@ | ||
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| function Download ($filename, $url) { | ||
| $webclient = New-Object System.Net.WebClient | ||
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| $basedir = $pwd.Path + "\" | ||
| $filepath = $basedir + $filename | ||
| if (Test-Path $filename) { | ||
| Write-Host "Reusing" $filepath | ||
| return $filepath | ||
| } | ||
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| # Download and retry up to 3 times in case of network transient errors. | ||
| Write-Host "Downloading" $filename "from" $url | ||
| $retry_attempts = 2 | ||
| for ($i = 0; $i -lt $retry_attempts; $i++) { | ||
| try { | ||
| $webclient.DownloadFile($url, $filepath) | ||
| break | ||
| } | ||
| Catch [Exception]{ | ||
| Start-Sleep 1 | ||
| } | ||
| } | ||
| if (Test-Path $filepath) { | ||
| Write-Host "File saved at" $filepath | ||
| } else { | ||
| # Retry once to get the error message if any at the last try | ||
| $webclient.DownloadFile($url, $filepath) | ||
| } | ||
| return $filepath | ||
| } | ||
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| function ParsePythonVersion ($python_version) { | ||
| if ($python_version -match $PYTHON_PRERELEASE_REGEX) { | ||
| return ([int]$matches.major, [int]$matches.minor, [int]$matches.micro, | ||
| $matches.prerelease) | ||
| } | ||
| $version_obj = [version]$python_version | ||
| return ($version_obj.major, $version_obj.minor, $version_obj.build, "") | ||
| } | ||
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| function DownloadPython ($python_version, $platform_suffix) { | ||
| $major, $minor, $micro, $prerelease = ParsePythonVersion $python_version | ||
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| if (($major -le 2 -and $micro -eq 0) ` | ||
| -or ($major -eq 3 -and $minor -le 2 -and $micro -eq 0) ` | ||
| ) { | ||
| $dir = "$major.$minor" | ||
| $python_version = "$major.$minor$prerelease" | ||
| } else { | ||
| $dir = "$major.$minor.$micro" | ||
| } | ||
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| if ($prerelease) { | ||
| if (($major -le 2) ` | ||
| -or ($major -eq 3 -and $minor -eq 1) ` | ||
| -or ($major -eq 3 -and $minor -eq 2) ` | ||
| -or ($major -eq 3 -and $minor -eq 3) ` | ||
| ) { | ||
| $dir = "$dir/prev" | ||
| } | ||
| } | ||
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| if (($major -le 2) -or ($major -le 3 -and $minor -le 4)) { | ||
| $ext = "msi" | ||
| if ($platform_suffix) { | ||
| $platform_suffix = ".$platform_suffix" | ||
| } | ||
| } else { | ||
| $ext = "exe" | ||
| if ($platform_suffix) { | ||
| $platform_suffix = "-$platform_suffix" | ||
| } | ||
| } | ||
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| $filename = "python-$python_version$platform_suffix.$ext" | ||
| $url = "$BASE_URL$dir/$filename" | ||
| $filepath = Download $filename $url | ||
| return $filepath | ||
| } | ||
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| function InstallPython ($python_version, $architecture, $python_home) { | ||
| Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home | ||
| if (Test-Path $python_home) { | ||
| Write-Host $python_home "already exists, skipping." | ||
| return $false | ||
| } | ||
| if ($architecture -eq "32") { | ||
| $platform_suffix = "" | ||
| } else { | ||
| $platform_suffix = "amd64" | ||
| } | ||
| $installer_path = DownloadPython $python_version $platform_suffix | ||
| $installer_ext = [System.IO.Path]::GetExtension($installer_path) | ||
| Write-Host "Installing $installer_path to $python_home" | ||
| $install_log = $python_home + ".log" | ||
| if ($installer_ext -eq '.msi') { | ||
| InstallPythonMSI $installer_path $python_home $install_log | ||
| } else { | ||
| InstallPythonEXE $installer_path $python_home $install_log | ||
| } | ||
| if (Test-Path $python_home) { | ||
| Write-Host "Python $python_version ($architecture) installation complete" | ||
| } else { | ||
| Write-Host "Failed to install Python in $python_home" | ||
| Get-Content -Path $install_log | ||
| Exit 1 | ||
| } | ||
| } | ||
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| function InstallPythonEXE ($exepath, $python_home, $install_log) { | ||
| $install_args = "/quiet InstallAllUsers=1 TargetDir=$python_home" | ||
| RunCommand $exepath $install_args | ||
| } | ||
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| function InstallPythonMSI ($msipath, $python_home, $install_log) { | ||
| $install_args = "/qn /log $install_log /i $msipath TARGETDIR=$python_home" | ||
| $uninstall_args = "/qn /x $msipath" | ||
| RunCommand "msiexec.exe" $install_args | ||
| if (-not(Test-Path $python_home)) { | ||
| Write-Host "Python seems to be installed else-where, reinstalling." | ||
| RunCommand "msiexec.exe" $uninstall_args | ||
| RunCommand "msiexec.exe" $install_args | ||
| } | ||
| } | ||
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| function RunCommand ($command, $command_args) { | ||
| Write-Host $command $command_args | ||
| Start-Process -FilePath $command -ArgumentList $command_args -Wait -Passthru | ||
| } | ||
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| function InstallPip ($python_home) { | ||
| $pip_path = $python_home + "\Scripts\pip.exe" | ||
| $python_path = $python_home + "\python.exe" | ||
| if (-not(Test-Path $pip_path)) { | ||
| Write-Host "Installing pip..." | ||
| $webclient = New-Object System.Net.WebClient | ||
| $webclient.DownloadFile($GET_PIP_URL, $GET_PIP_PATH) | ||
| Write-Host "Executing:" $python_path $GET_PIP_PATH | ||
| & $python_path $GET_PIP_PATH | ||
| } else { | ||
| Write-Host "pip already installed." | ||
| } | ||
| } | ||
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| function DownloadMiniconda ($python_version, $platform_suffix) { | ||
| if ($python_version -eq "3.4") { | ||
| $filename = "Miniconda3-3.5.5-Windows-" + $platform_suffix + ".exe" | ||
| } else { | ||
| $filename = "Miniconda-3.5.5-Windows-" + $platform_suffix + ".exe" | ||
| } | ||
| $url = $MINICONDA_URL + $filename | ||
| $filepath = Download $filename $url | ||
| return $filepath | ||
| } | ||
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| function InstallMiniconda ($python_version, $architecture, $python_home) { | ||
| Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home | ||
| if (Test-Path $python_home) { | ||
| Write-Host $python_home "already exists, skipping." | ||
| return $false | ||
| } | ||
| if ($architecture -eq "32") { | ||
| $platform_suffix = "x86" | ||
| } else { | ||
| $platform_suffix = "x86_64" | ||
| } | ||
| $filepath = DownloadMiniconda $python_version $platform_suffix | ||
| Write-Host "Installing" $filepath "to" $python_home | ||
| $install_log = $python_home + ".log" | ||
| $args = "/S /D=$python_home" | ||
| Write-Host $filepath $args | ||
| Start-Process -FilePath $filepath -ArgumentList $args -Wait -Passthru | ||
| if (Test-Path $python_home) { | ||
| Write-Host "Python $python_version ($architecture) installation complete" | ||
| } else { | ||
| Write-Host "Failed to install Python in $python_home" | ||
| Get-Content -Path $install_log | ||
| Exit 1 | ||
| } | ||
| } | ||
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| function InstallMinicondaPip ($python_home) { | ||
| $pip_path = $python_home + "\Scripts\pip.exe" | ||
| $conda_path = $python_home + "\Scripts\conda.exe" | ||
| if (-not(Test-Path $pip_path)) { | ||
| Write-Host "Installing pip..." | ||
| $args = "install --yes pip" | ||
| Write-Host $conda_path $args | ||
| Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru | ||
| } else { | ||
| Write-Host "pip already installed." | ||
| } | ||
| } | ||
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| function main () { | ||
| InstallPython $env:PYTHON_VERSION $env:PYTHON_ARCH $env:PYTHON | ||
| InstallPip $env:PYTHON | ||
| } | ||
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| main |
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