ExpandingMan

using Base.Test
using MacroTools

"""
    argnametype(arg::Expr)

Given an argument of the form `x::DType` extracts the argument name (`x`) and
data type (`DType`) as a tuple.
"""
function argnametype(arg::Expr)

ExpandingMan

typealias Period Union{Dates.TimePeriod, Dates.DatePeriod}

# definition of year as 365 days is consistent with Dates package

convert_ms(::Type{Dates.Millisecond}, t::Number) = t
convert_ms(::Type{Dates.Second}, t::Number) = t/1000
convert_ms(::Type{Dates.Minute}, t::Number) = t/(1000*60)
convert_ms(::Type{Dates.Hour}, t::Number) = t/(1000*60*60)
convert_ms(::Type{Dates.Day}, t::Number) = t/(1000*60*60*24)
convert_ms(::Type{Dates.Year}, t::Number) = t/(1000*60*60*24*365)

ExpandingMan

using DataFrames
using Feather
using PyCall
@pyimport feather as pyfeather
# using DatasToolbox


const NROWS = 2*10^6
const FILENAME = "devtest1.feather"
const PYTHON_FILENAME = "pythontest.feather"

ExpandingMan

using DataFrames
using PyCall
# using DatasToolbox

import Base.serialize
import Base.deserialize

const NROWS = 2*10^6
const FILENAME = "devtest1.jbin"
const PICKLE_FILENAME = "devtest1.pkl"