Startup time is slow

[rht]

I timed each of

import numpy
import quantecon

The numpy import took 0.288s. The quantecon import took 5.007s.
From python -X importtime I found the most time consuming imports are (not exhaustive because the importtime output is too big to parse by eye):
(unit: in ms)

1. 636 quantecon.arma (mainly scipy.signal)
2. 2820 quantecon.random
3. 1121 quantecon.quad (mainly sympy)
4. 520 quantecon.game_theory
5. 507 numba

Should quantecon.random and quantecon.quad not be imported at the main namespace?

[oyamad]

I found a very interesting and useful package called tuna:

$ python -X importtime -c 'import quantecon' 2> quantecon.log
$ tuna quantecon.log

[rht]

Indeed; it was painstaking to sift through the raw importtime output.
From the chart, numba.config takes a significant portion of numba import instead of the portion that loads llvmlite.