/fastexcel

POC for reading excel files faster than with pandas

Primary LanguageRust

ARCHIVED, SEE https://github.com/ToucanToco/fastexcel instead

How to launch

First, install maturin.

For debug mode, you can just use maturin develop and run python (or ipython) to start a python shell.

For prod mode (required for profiling):

maturin build --release
pip install --force-reinstall target/wheels/fastexcel-*.whl

Dev tips

  • Use cargo check to verify that your rust code compiles, no need to go through maturin every time
  • cargo clippy = 💖
  • Careful with arrow constructors, they tend to allocate a lot
  • mprof and time go a long way for perf checks, no need to go fancy right from the start