prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Compatibility.py: Add comment explaining JSONDecodeError is missing in Python 3.4
  difficulty/newcomer
  
  Opened via [gitter](https://gitter.im/coala/coala/?at=59098da68fcce56b205cd7e0) by @jayvdb
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `coalib/misc/Compatibility.py`
  Content:
  ```
  1 import json
  2 try:
  3     JSONDecodeError = json.decoder.JSONDecodeError
  4 except AttributeError:  # pragma Python 3.5,3.6: no cover
  5     JSONDecodeError = ValueError
  6
  ```
  --- 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/coalib/misc/Compatibility.py b/coalib/misc/Compatibility.py
  --- a/coalib/misc/Compatibility.py
  +++ b/coalib/misc/Compatibility.py
  @@ -1,5 +1,6 @@
   import json
   try:
  +    # JSONDecodeError class is available since Python 3.5.x.
       JSONDecodeError = json.decoder.JSONDecodeError
   except AttributeError:  # pragma Python 3.5,3.6: no cover
       JSONDecodeError = ValueError
  
verification_info: {"golden_diff": "diff --git a/coalib/misc/Compatibility.py b/coalib/misc/Compatibility.py\n--- a/coalib/misc/Compatibility.py\n+++ b/coalib/misc/Compatibility.py\n@@ -1,5 +1,6 @@\n import json\n try:\n+    # JSONDecodeError class is available since Python 3.5.x.\n     JSONDecodeError = json.decoder.JSONDecodeError\n except AttributeError:  # pragma Python 3.5,3.6: no cover\n     JSONDecodeError = ValueError\n", "issue": "Compatibility.py: Add comment explaining JSONDecodeError is missing in Python 3.4\ndifficulty/newcomer\n\nOpened via [gitter](https://gitter.im/coala/coala/?at=59098da68fcce56b205cd7e0) by @jayvdb\n", "before_files": [{"content": "import json\ntry:\n    JSONDecodeError = json.decoder.JSONDecodeError\nexcept AttributeError:  # pragma Python 3.5,3.6: no cover\n    JSONDecodeError = ValueError\n", "path": "coalib/misc/Compatibility.py"}], "after_files": [{"content": "import json\ntry:\n    # JSONDecodeError class is available since Python 3.5.x.\n    JSONDecodeError = json.decoder.JSONDecodeError\nexcept AttributeError:  # pragma Python 3.5,3.6: no cover\n    JSONDecodeError = ValueError\n", "path": "coalib/misc/Compatibility.py"}]}