manifests/install.pp


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class python::install {

  $python = $python::version ? {
    'system' => 'python',
    default  => "python${python::version}",
  }

  $pythondev = $::operatingsystem ? {
    /(?i:RedHat|CentOS|Fedora)/ => "${python}-devel",
    /(?i:Debian|Ubuntu)/        => "${python}-dev"
  }

  package { $python: ensure => present }

  $dev_ensure = $python::dev ? {
    true    => present,
    default => absent,
  }

  $pip_ensure = $python::pip ? {
    true    => present,
    default => absent,
  }

  package { $pythondev: ensure => $dev_ensure }
  package { 'python-pip': ensure => $pip_ensure }

  $venv_ensure = $python::virtualenv ? {
    true    => present,
    default => absent,
  }

  # Install latest from pip if pip is the provider
  case $python::provider {
    pip: {
      package { 'virtualenv': ensure => latest, provider => pip } 
    }
    default: {
      package { 'python-virtualenv': ensure => $venv_ensure }
    }
  }

  $gunicorn_ensure = $python::gunicorn ? {
    true    => present,
    default => absent,
  }

  package { 'gunicorn': ensure => $gunicorn_ensure }

}