resource not closed on exception for non-existant file #101
Description
In [7]: import s3fs
In [8]: s3fs.__version__
Out[8]: '0.1.1'
In [5]: fs = s3fs.S3FileSystem(anon=True)
In [6]: fs.open('nyqpug/asdf.csv')
---------------------------------------------------------------------------
ClientError Traceback (most recent call last)
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in info(self, path, refresh, **kwargs)
393 out = self._call_s3(self.s3.head_object,
--> 394 kwargs, Bucket=bucket, Key=key, **self.req_kw)
395 out = {'ETag': out['ETag'], 'Key': '/'.join([bucket, key]),
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in _call_s3(self, method, *akwarglist, **kwargs)
167 additional_kwargs.update(kwargs)
--> 168 return method(**additional_kwargs)
169
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/botocore/client.py in _api_call(self, *args, **kwargs)
252 # The "self" in this scope is referring to the BaseClient.
--> 253 return self._make_api_call(operation_name, kwargs)
254
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/botocore/client.py in _make_api_call(self, operation_name, api_params)
543 error_class = self.exceptions.from_code(error_code)
--> 544 raise error_class(parsed_response, operation_name)
545 else:
ClientError: An error occurred (404) when calling the HeadObject operation: Not Found
During handling of the above exception, another exception occurred:
FileNotFoundError Traceback (most recent call last)
<ipython-input-6-7628c3834aad> in <module>()
----> 1 fs.open('nyqpug/asdf.csv')
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in open(self, path, mode, block_size, acl, fill_cache, **kwargs)
289 " and manage bytes" % (mode[0] + 'b'))
290 return S3File(self, path, mode, block_size=block_size, acl=acl,
--> 291 fill_cache=fill_cache, s3_additional_kwargs=kwargs)
292
293 def _lsdir(self, path, refresh=False):
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in __init__(self, s3, path, mode, block_size, acl, fill_cache, s3_additional_kwargs)
927 else:
928 try:
--> 929 self.size = self.info()['Size']
930 except (ClientError, ParamValidationError):
931 raise IOError("File not accessible", path)
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in info(self, **kwargs)
936 def info(self, **kwargs):
937 """ File information about this path """
--> 938 return self.s3.info(self.path, **kwargs)
939
940 def metadata(self, refresh=False, **kwargs):
/Users/jreback/miniconda3/envs/pandas/lib/python3.6/site-packages/s3fs/core.py in info(self, path, refresh, **kwargs)
398 return out
399 except (ClientError, ParamValidationError):
--> 400 raise FileNotFoundError(path)
401
402 _metadata_cache = {}
FileNotFoundError: nyqpug/asdf.csv
This shows a resource not closed warning on python 3.