from fabric.api import env


class Integration(object):
    def setup(self):
        env.host_string = "127.0.0.1"

from fabric.api import env


class Integration(object):
    def setup(self):
        if not env.host_string: # Allow runtime selection
            env.host_string = "127.0.0.1"

Allow easy local exec of integration suite via eg -H
Allow easy local exec of integration suite via eg -H

  from fabric.api import env
  
  
  class Integration(object):
      def setup(self):
+         if not env.host_string: # Allow runtime selection
-         env.host_string = "127.0.0.1"
+             env.host_string = "127.0.0.1"
  
Allow easy local exec of integration suite via eg -H
## Code Before:
from fabric.api import env


class Integration(object):
    def setup(self):
        env.host_string = "127.0.0.1"

## Instruction:
Allow easy local exec of integration suite via eg -H
## Code After:
from fabric.api import env


class Integration(object):
    def setup(self):
        if not env.host_string: # Allow runtime selection
            env.host_string = "127.0.0.1"
