thombashi / pytablereader

A Python library to load structured table data from files/strings/URL with various data format: CSV / Excel / Google-Sheets / HTML / JSON / LDJSON / LTSV / Markdown / SQLite / TSV.

pytablereader

Summary

pytablereader is a Python library to load structured table data from files/strings/URL with various data format: CSV / Excel / Google-Sheets / HTML / JSON / LDJSON / LTSV / Markdown / SQLite / TSV.

Features

• Extract structured tabular data from various data format:

  • CSV / Tab separated values (TSV) / Space separated values (SSV)
  • Microsoft Excel ^TM file
  • Google Sheets
  • HTML (table tags)
  • JSON
  • Labeled Tab-separated Values (LTSV)
  • Line-delimited JSON(LDJSON) / NDJSON / JSON Lines
  • Markdown
  • MediaWiki
  • SQLite database file

• Supported data sources are:

  • Files on a local file system
  • Accessible URLs
  • str instances

• Loaded table data can be used as:

  • pandas.DataFrame instance
  • dict instance

Examples

Load a CSV table

Sample Code

import pytablereader as ptr
import pytablewriter as ptw


# prepare data ---
file_path = "sample_data.csv"
csv_text = "\n".join([
    '"attr_a","attr_b","attr_c"',
    '1,4,"a"',
    '2,2.1,"bb"',
    '3,120.9,"ccc"',
])

with open(file_path, "w") as f:
    f.write(csv_text)

# load from a csv file ---
loader = ptr.CsvTableFileLoader(file_path)
for table_data in loader.load():
    print("\n".join([
        "load from file",
        "==============",
        "{:s}".format(ptw.dumps_tabledata(table_data)),
    ]))

# load from a csv text ---
loader = ptr.CsvTableTextLoader(csv_text)
for table_data in loader.load():
    print("\n".join([
        "load from text",
        "==============",
        "{:s}".format(ptw.dumps_tabledata(table_data)),
    ]))

Output

load from file
==============
.. table:: sample_data

    ======  ======  ======
    attr_a  attr_b  attr_c
    ======  ======  ======
         1     4.0  a
         2     2.1  bb
         3   120.9  ccc
    ======  ======  ======

load from text
==============
.. table:: csv2

    ======  ======  ======
    attr_a  attr_b  attr_c
    ======  ======  ======
         1     4.0  a
         2     2.1  bb
         3   120.9  ccc
    ======  ======  ======

Get loaded table data as pandas.DataFrame instance

Sample Code

import pytablereader as ptr

loader = ptr.CsvTableTextLoader(
    "\n".join([
        "a,b",
        "1,2",
        "3.3,4.4",
    ]))
for table_data in loader.load():
    print(table_data.as_dataframe())

Output

a    b

0 1 2 1 3.3 4.4

For more information

More examples are available at https://pytablereader.rtfd.io/en/latest/pages/examples/index.html

Installation

Install from PyPI

pip install pytablereader

Some of the formats require additional dependency packages, you can install the dependency packages as follows:

• Excel

  • pip install pytablereader[excel]

• Google Sheets

  • pip install pytablereader[gs]

• Markdown

  • pip install pytablereader[md]

• Mediawiki

  • pip install pytablereader[mediawiki]

• SQLite

  • pip install pytablereader[sqlite]

• Load from URLs

  • pip install pytablereader[url]

• All of the extra dependencies

  • pip install pytablereader[all]

Install from PPA (for Ubuntu)

sudo add-apt-repository ppa:thombashi/ppa
sudo apt update
sudo apt install python3-pytablereader

Dependencies

• Python 3.7+
• Python package dependencies (automatically installed)

Optional Python packages

• logging extras

  • loguru: Used for logging if the package installed

• excel extras

  • excelrd

• md extras

  • Markdown

• mediawiki extras

  • pypandoc

• sqlite extras

  • SimpleSQLite

• url extras

  • retryrequests

• pandas

  • required to get table data as a pandas data frame

• lxml

Optional packages (other than Python packages)

• libxml2 (faster HTML conversion)
• pandoc (required when loading MediaWiki file)

Documentation

https://pytablereader.rtfd.io/

Related Project

• pytablewriter

  • Tabular data loaded by pytablereader can be written another tabular data format with pytablewriter.

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