parquet-to-root 0.3.0

Parquet-to-ROOT translator

parquet_to_root

Simple translator from Parquet to ROOT TTree

Install: pip3 install parquet_to_root

Requires PyROOT and pyarrow. The latter can be installed via pip; the former is more complicated, but if you're reading this you probably know how to get it. (The tests in this package use miniconda: conda install -c conda-forge root.)

To run from the command line:

python3 -m parquet_to_root infile.parquet outfile.root [-t TREENAME] [--verbose]

To run from your script,

    from parquet_to_root import parquet_to_root
    parquet_to_root(parquetfile, rootfile, treename='parquettree', verbose=False)

where the default values are shown for the optional arguments.

The parquetfile argument can either be a filename string or file-like object opened in binary mode. The rootfile argument can either be a filename string or an open TFile; if a string is provided any existing file will be overwritten, while if a TFile object is provided the new tree will be added to the existing file.