Hi,
I'm running a local instance of Galaxy and no matter what tool I run I get 
the following error:

Error executing tool: maximum recursion depth exceeded while calling a 
Python object

In the log file:

galaxy.tools ERROR 2013-01-25 14:06:54,375 Exception caught while 
attempting tool execution:
Traceback (most recent call last):
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/__init__.py", line 1776, in 
handle_input
    _, out_data = self.execute( trans, incoming=params, history=history )
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/__init__.py", line 2103, in 
execute
    return self.tool_action.execute( self, trans, incoming=incoming, 
set_output_hid=set_output_hid, history=history, **kwargs )
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/actions/__init__.py", line 
203, in execute
    chrom_info = build_fasta_dataset.get_converted_dataset( trans, 'len' 
).file_name
  File "/Galaxy/galaxy_dist/lib/galaxy/model/__init__.py", line 1161, in 
get_converted_dataset
    new_dataset = self.datatype.convert_dataset( trans, self, target_ext, 
return_output=True, visible=False, deps=deps, set_output_history=False 
).values()[0]
  File "/Galaxy/galaxy_dist/lib/galaxy/datatypes/data.py", line 467, in 
convert_dataset
    converted_dataset = converter.execute( trans, incoming=params, 
set_output_hid=visible, set_output_history=set_output_history)[1]
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/__init__.py", line 2103, in 
execute
    return self.tool_action.execute( self, trans, incoming=incoming, 
set_output_hid=set_output_hid, history=history, **kwargs )
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/actions/__init__.py", line 
203, in execute
    chrom_info = build_fasta_dataset.get_converted_dataset( trans, 'len' 
).file_name
  File "/Galaxy/galaxy_dist/lib/galaxy/model/__init__.py", line 1161, in 
get_converted_dataset
    new_dataset = self.datatype.convert_dataset( trans, self, target_ext, 
return_output=True, visible=False, deps=deps, set_output_history=False 
).values()[0]
  File "/Galaxy/galaxy_dist/lib/galaxy/datatypes/data.py", line 467, in 
convert_dataset
    converted_dataset = converter.execute( trans, incoming=params, 
set_output_hid=visible, set_output_history=set_output_history)[1]
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/__init__.py", line 2103, in 
execute
    return self.tool_action.execute( self, trans, incoming=incoming, 
set_output_hid=set_output_hid, history=history, **kwargs )
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/actions/__init__.py", line 
203, in execute
    chrom_info = build_fasta_dataset.get_converted_dataset( trans, 'len' 
).file_name
  File "/Galaxy/galaxy_dist/lib/galaxy/model/__init__.py", line 1161, in 
get_converted_dataset
    new_dataset = self.datatype.convert_dataset( trans, self, target_ext, 
return_output=True, visible=False, deps=deps, set_output_history=False 
).values()[0]
  File "/Galaxy/galaxy_dist/lib/galaxy/datatypes/data.py", line 467, in 
convert_dataset
    converted_dataset = converter.execute( trans, incoming=params, 
set_output_hid=visible, set_output_history=set_output_history)[1]
  File "/Galaxy/galaxy_dist/lib/galaxy/tools/__init__.py", line 2103, in 
execute
    return self.tool_action.execute( self, trans, incoming=incoming, 
set_output_hid=set_output_hid, history=history, **kwargs )

thousands of lines here...ending with...

  File 
"/Galaxy/galaxy_dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/schema.py",
 
line 760, in _make_proxy
    selectable.columns.add(c)
  File 
"/Galaxy/galaxy_dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/sql/expression.py",
 
line 1668, in add
    self[column.key] = column
  File 
"/Galaxy/galaxy_dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/sql/expression.py",
 
line 1671, in __setitem__
    if key in self:
  File 
"/Galaxy/galaxy_dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/sql/expression.py",
 
line 1702, in __contains__
    return util.OrderedProperties.__contains__(self, other)
  File 
"/Galaxy/galaxy_dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/util.py",
 
line 652, in __contains__
    return key in self._data
RuntimeError: maximum recursion depth exceeded while calling a Python 
object


Any help would be much appreciated,
Thanks in advance,
Liisa

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