prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  No module named 'packaging' when install horovod
  It seems that the horovod v0.26.0 has some dependency problems.
  
  How long does it take for a new patch version to be released or should I pin the horovod version? ^_^
  
  ![image](https://user-images.githubusercontent.com/32220263/195746141-2a0050f5-1eaf-4f7b-9a62-50fd6b13f2ff.png)
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `horovod/__init__.py`
  Content:
  ```
  1 from horovod.runner import run
  2 
  3 __version__ = '0.26.0'
  4
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/horovod/__init__.py b/horovod/__init__.py
  --- a/horovod/__init__.py
  +++ b/horovod/__init__.py
  @@ -1,3 +1,3 @@
   from horovod.runner import run
   
  -__version__ = '0.26.0'
  +__version__ = '0.26.1'
  
verification_info: {"golden_diff": "diff --git a/horovod/__init__.py b/horovod/__init__.py\n--- a/horovod/__init__.py\n+++ b/horovod/__init__.py\n@@ -1,3 +1,3 @@\n from horovod.runner import run\n \n-__version__ = '0.26.0'\n+__version__ = '0.26.1'\n", "issue": "No module named 'packaging' when install horovod\nIt seems that the horovod v0.26.0 has some dependency problems.\r\n\r\nHow long does it take for a new patch version to be released or should I pin the horovod version? ^_^\r\n\r\n![image](https://user-images.githubusercontent.com/32220263/195746141-2a0050f5-1eaf-4f7b-9a62-50fd6b13f2ff.png)\r\n\n", "before_files": [{"content": "from horovod.runner import run\n\n__version__ = '0.26.0'\n", "path": "horovod/__init__.py"}], "after_files": [{"content": "from horovod.runner import run\n\n__version__ = '0.26.1'\n", "path": "horovod/__init__.py"}]}