Dump Database to .csv

Program dump_stdb

Description

Program to dump a Station Database into .csv format. If an output file is specified, file is dumped there (with .csv extension). Otherwise output is directed to standard output.

This program is useful when you make edits to an existing .pkl database merge two databases, or append a new station to a database, without automatically creating a corresponding .csv file.

Usage

$ dump_stdb -h
Usage: dump_stdb [options] <station pickle file>

Program to dump the contents of a station database (.pkl) as csv. By default
the output is directed to standard out. If a filename is optionally included,
then the contents are also dumped to file.

Options:
  -h, --help            show this help message and exit
  --keys=KEYS           Specify a comma separated list of keys to dump. Any
                        key not specified by this search is not included in
                        the output.
  -O OFILE, --output-file=OFILE
                        Specify an output file name for the dumped csv format
                        data. If no .csv extenion is included, one is added.
  -a, --ascii           Specify to write ascii Pickle files instead of binary.
                        Ascii are larger file size, but more likely to be
                        system independent.

Example

In the example in Merge Databases, the database merged_list.pkl is not automatically saved in .csv format:

$ ls -l merged_list.*
-rw-r--r--  1 username  staff  2038  3 Oct 10:44 merged_list.pkl

You can save it as .csv by executing:

$ dump_stdb merged_list.pkl -O merged_list.csv

$ ls -l merged_list.*
-rw-r--r--  1 username  staff   403  4 Oct 11:51 merged_list.csv
-rw-r--r--  1 username  staff  2038  3 Oct 10:44 merged_list.pkl