Traceback (most recent call last):
  File "sanitycheckrix.py", line 1335, in <module>
    analyze_data_file(fn, prefix, scramble)
  File "sanitycheckrix.py", line 944, in analyze_data_file
    (x,prefix) = read_data_file(datafn, prefix, scramble)
  File "sanitycheckrix.py", line 913, in read_data_file
    x = read_cache(prefix + '.pickle', text_table_fields, (datafn,))
  File "sanitycheckrix.py", line 358, in read_cache
    X = func(*args, **kwargs)
  File "/home/dstn/an/astrometry/util/pyfits_utils.py", line 55, in text_table_fields
    f = open(forfn)
IOError: [Errno 2] No such file or directory: '1_4kpc_metal_poor_with_PM_July23_09.txt'