old_contents: from .generic import Generic
  
  
  class Powershell(Generic):
      def app_alias(self, fuck):
          return 'function ' + fuck + ' { \n' \
                 '    $fuck = $(thefuck (Get-History -Count 1).CommandLine);\n' \
                 '    if (-not [string]::IsNullOrWhiteSpace($fuck)) {\n' \
                 '        if ($fuck.StartsWith("echo")) { $fuck = $fuck.Substring(5); }\n' \
                 '        else { iex "$fuck"; }\n' \
                 '    }\n' \
                 '}\n'
  
      def and_(self, *commands):
          return u' -and '.join('({0})'.format(c) for c in commands)
  
      def how_to_configure(self):
          return {
              'content': 'iex "thefuck --alias"',
              'path': '$profile',
              'reload': '& $profile',
          }
  
new_contents: from .generic import Generic
  
  
  class Powershell(Generic):
      def app_alias(self, fuck):
          return 'function ' + fuck + ' {\n' \
                 '    $history = (Get-History -Count 1).CommandLine;\n' \
                 '    if (-not [string]::IsNullOrWhiteSpace($history)) {\n' \
                 '        $fuck = $(thefuck $history);\n' \
                 '        if (-not [string]::IsNullOrWhiteSpace($fuck)) {\n' \
                 '            if ($fuck.StartsWith("echo")) { $fuck = $fuck.Substring(5); }\n' \
                 '            else { iex "$fuck"; }\n' \
                 '        }\n' \
                 '    }\n' \
                 '}\n'
  
      def and_(self, *commands):
          return u' -and '.join('({0})'.format(c) for c in commands)
  
      def how_to_configure(self):
          return {
              'content': 'iex "thefuck --alias"',
              'path': '$profile',
              'reload': '& $profile',
          }
  
subject: Update PowerShell alias to handle no history