python 3.9.0 is soon to be released.

check if borg works on py39, try manually and also run our tests.

add it to tox.ini, travis-ci, vagrant boxes, setup.py (metadata).

The latest copy of the CPython grammar tests in test_grammar.py has several @skips and FIXMEs. Some of them seem easy to fix, e.g. some parser bugs or missing warnings that would be helpful, others are entire features. We should fix the easy ones and make sure there are tickets for the rest.

I tried saving and loading a state, but the resulting images differ. Mario shows a different animation frame. Might be related to #99

from pyboy.utils import WindowEvent
import pyboy as pyboy
import numpy as np
import io

# Load Super Mario Land and progress to start of game
boy = pyboy.PyBoy('SuperMarioLand1.gb')
boy.set_emulation_speed(0)
for i in range(100):
      boy.tick()

rasterio.warp.reproject takes a kwargs parameter, which is passed to the "transformation function". It is not by any means clear what this means. What transformation function? What are the allowed values for kwargs? Can this please be expanded on? Thanks.

An option like $ fio cat --bounds w s e n --bounds-crs <crs> --dst-crs <crs> would allow for filtering prior to reprojection, like $ ogr2ogr -spat w s e n -spat_srs <crs>.

See Toblerity/Fiona#210 for a discussion about standardizing bounding boxes as --bounds w s e n rather than --bbox w,s,e,n.

This could be done adding a new line in scikit-ci-yml.

The line could be

- twine check dist/*

See https://github.com/scikit-build/scikit-build/blob/5f558d3cc063f41b04cb21bd229b0b3faae0f4cb/scikit-ci.yml#L57-L58