from .file_io import (ReadFITSImage, ReadFITSTable, ReadASCIITable, ReadTable, WriteTable,
                      WriteASCIITable, WriteFITSTable)
from .stile_utils import Parser, FormatArray, fieldNames
from .binning import BinList, BinStep, BinFunction, ExpandBinList
import treecorr_utils
from .treecorr_utils import ReadTreeCorrResultsFile
from .data_handler import DataHandler
from .sys_tests import (StatSysTest, CorrelationFunctionSysTest, ScatterPlotSysTest,
                        WhiskerPlotSysTest)

from .file_io import (ReadFITSImage, ReadFITSTable, ReadASCIITable, ReadTable, WriteTable,
                      WriteASCIITable, WriteFITSTable)
from .stile_utils import Parser, FormatArray, fieldNames
from .binning import BinList, BinStep, BinFunction, ExpandBinList
from . import treecorr_utils
from .treecorr_utils import ReadTreeCorrResultsFile
from .data_handler import DataHandler
from .sys_tests import (StatSysTest, CorrelationFunctionSysTest, ScatterPlotSysTest,
                        WhiskerPlotSysTest)

Fix relative import in __init__