Merge pull request #5425 from jreback/temp_file

TST: Use tempfiles in all tests.

Author: jreback

doc/source/release.rst

@@ -769,6 +769,7 @@ Bug Fixes
  - The GroupBy methods ``transform`` and ``filter`` can be used on Series
  and DataFrames that have repeated (non-unique) indices. (:issue:`4620`)
  - Fix empty series not printing name in repr (:issue:`4651`)
+ - Make tests create temp files in temp directory by default. (:issue:`5419`)
 
 pandas 0.12.0
 -------------

pandas/io/pytables.py

@@ -225,11 +225,6 @@ def _tables():
  return _table_mod
 
 
-def h5_open(path, mode):
- tables = _tables()
- return tables.openFile(path, mode)
-
-
 @contextmanager
 def get_store(path, **kwargs):
  """
@@ -389,6 +384,10 @@ def root(self):
  self._check_if_open()
  return self._handle.root
 
+ @property
+ def filename(self):
+ return self._path
+
  def __getitem__(self, key):
  return self.get(key)
 
@@ -475,6 +474,8 @@ def open(self, mode='a'):
  mode : {'a', 'w', 'r', 'r+'}, default 'a'
  See HDFStore docstring or tables.openFile for info about modes
  """
+ tables = _tables()
+
  if self._mode != mode:
 
  # if we are chaning a write mode to read, ok
@@ -501,13 +502,20 @@ def open(self, mode='a'):
  fletcher32=self._fletcher32)
 
  try:
- self._handle = h5_open(self._path, self._mode)
- except IOError as e: # pragma: no cover
+ self._handle = tables.openFile(self._path, self._mode)
+ except (IOError) as e: # pragma: no cover
  if 'can not be written' in str(e):
  print('Opening %s in read-only mode' % self._path)
- self._handle = h5_open(self._path, 'r')
+ self._handle = tables.openFile(self._path, 'r')
  else:
  raise
+ except (Exception) as e:
+
+ # trying to read from a non-existant file causes an error which
+ # is not part of IOError, make it one
+ if self._mode == 'r' and 'Unable to open/create file' in str(e):
+ raise IOError(str(e))
+ raise
 
  def close(self):
  """