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marcxml2csv

A simple converter of (possibly gzipped) MARCXML/PICAXML to (possibly gzipped) CSV/TSV.

The resulting CSV/TSV has been designed to be easy to use as a data table, but also to retain all ordering informaation in the original when such is needed. The format is as follows: record_number,field_number,subfield_number,field_code,subfield_code,value

Here, record_number identifies the MARC/PICA+ record, while field_number and subfield_number can be used for more exact filtering / reconstructing the original field flow if needed.

For the MARC leader and control fields, subfield_number will be empty.

For MARC data fields, ind1 and ind2 values are reported as separate rows with the subfield_code being ind1 or ind2, but only when non-empty. The also have an empty subfield_number.

Installation

Install from pypi with e.g. pipx install marcxml2csv.

Usage

Usage: marcxml2csv [OPTIONS] [INPUT]...

  Convert from MARCXML (gz) input files into (gzipped) CSV/TSV

Options:
  -o, --output TEXT  Output CSV/TSV (gz) file  [required]
  --help             Show this message and exit.

Usage: picaxml2csv [OPTIONS] [INPUT]...

  Convert from PICAXML (gz) input files into (gzipped) CSV/TSV

Options:
  -o, --output TEXT  Output CSV/TSV (gz) file  [required]
  --help             Show this message and exit.

Files will be read/written using gzip if the filename ends with .gz. TSV format will be used if the output filename contains .tsv, otherwise CSV will be used.