prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  The compat modules should use absolute imports
  The [statsmodels.compat.collections](https://github.com/statsmodels/statsmodels/blob/a88830efc3a99cfbe0ebc9fbfd77820fe748fc59/statsmodels/compat/collections.py#L7) imports the namesake standard library module without requesting absolute imports.  While it seems to work in many cases, it causes a problem to packages that override `__import__`.  See enlnt/pyq#18.
  
  Please consider adding
  
  ```python
  from __future__ import absolute_import
  ```
  to the compat modules.
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `statsmodels/compat/collections.py`
  Content:
  ```
  1 '''backported compatibility functions for Python's collections
  2 
  3 '''
  4 
  5 try:
  6     #python >= 2.7
  7     from collections import OrderedDict
  8 except ImportError:
  9     #http://code.activestate.com/recipes/576693/
  10     #author: Raymond Hettinger
  11     from .ordereddict import OrderedDict
  12 
  13 try:
  14     #python >= 2.7
  15     from collections import Counter
  16 except ImportError:
  17     #http://code.activestate.com/recipes/576611/
  18     #author: Raymond Hettinger
  19     from .counter import Counter
  20
  ```
  --- 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/statsmodels/compat/collections.py b/statsmodels/compat/collections.py
  --- a/statsmodels/compat/collections.py
  +++ b/statsmodels/compat/collections.py
  @@ -1,6 +1,7 @@
   '''backported compatibility functions for Python's collections
   
   '''
  +from __future__ import absolute_import
   
   try:
       #python >= 2.7
  
verification_info: {"golden_diff": "diff --git a/statsmodels/compat/collections.py b/statsmodels/compat/collections.py\n--- a/statsmodels/compat/collections.py\n+++ b/statsmodels/compat/collections.py\n@@ -1,6 +1,7 @@\n '''backported compatibility functions for Python's collections\n \n '''\n+from __future__ import absolute_import\n \n try:\n     #python >= 2.7\n", "issue": "The compat modules should use absolute imports\nThe [statsmodels.compat.collections](https://github.com/statsmodels/statsmodels/blob/a88830efc3a99cfbe0ebc9fbfd77820fe748fc59/statsmodels/compat/collections.py#L7) imports the namesake standard library module without requesting absolute imports.  While it seems to work in many cases, it causes a problem to packages that override `__import__`.  See enlnt/pyq#18.\r\n\r\nPlease consider adding\r\n\r\n```python\r\nfrom __future__ import absolute_import\r\n```\r\nto the compat modules.\n", "before_files": [{"content": "'''backported compatibility functions for Python's collections\n\n'''\n\ntry:\n    #python >= 2.7\n    from collections import OrderedDict\nexcept ImportError:\n    #http://code.activestate.com/recipes/576693/\n    #author: Raymond Hettinger\n    from .ordereddict import OrderedDict\n\ntry:\n    #python >= 2.7\n    from collections import Counter\nexcept ImportError:\n    #http://code.activestate.com/recipes/576611/\n    #author: Raymond Hettinger\n    from .counter import Counter\n", "path": "statsmodels/compat/collections.py"}], "after_files": [{"content": "'''backported compatibility functions for Python's collections\n\n'''\nfrom __future__ import absolute_import\n\ntry:\n    #python >= 2.7\n    from collections import OrderedDict\nexcept ImportError:\n    #http://code.activestate.com/recipes/576693/\n    #author: Raymond Hettinger\n    from .ordereddict import OrderedDict\n\ntry:\n    #python >= 2.7\n    from collections import Counter\nexcept ImportError:\n    #http://code.activestate.com/recipes/576611/\n    #author: Raymond Hettinger\n    from .counter import Counter\n", "path": "statsmodels/compat/collections.py"}]}