Exists function is crashing.

[TimotheeJeannin]

Here is the error I have when I try to use the exists function:

Traceback (most recent call last):
  File "env/bin/fab", line 9, in <module>
    load_entry_point('fabric==2.0.0', 'console_scripts', 'fab')()
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/program.py", line 332, in run
    self.execute()
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/program.py", line 480, in execute
    executor.execute(*self.tasks)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/executor.py", line 133, in execute
    result = call.task(*args, **call.kwargs)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/tasks.py", line 127, in __call__
    result = self.body(*args, **kwargs)
  File "/home/tim/Workspace/wintest/fabfile.py", line 58, in website_dependencies
    if not exists(context, remote_env_path):
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/patchwork/util.py", line 113, in inner
    return f(*args, **kwargs)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/patchwork/files.py", line 31, in exists
    return runner(cmd, hide=True, warn=True).succeeded
AttributeError: 'Result' object has no attribute 'succeeded'

It looks like the attribute succeeded have been replaced with ok in recent versions.

[TimotheeJeannin]

Just realized there is a pull request for this : #17