The treebeard will guard your notebook

News and announcements from the Python community for the week of Jun 18th, 2020

Episode #186: The treebeard will guard your notebook

Published Thu, Jun 18, 2020, recorded Wed, Jun 10, 2020.

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Michael #1: sidetable - Create Simple Summary Tables in Pandas

• by Chris Moffitt
• Makes it easy to build a frequency table and simple summary of missing values in a DataFrame.
• Example without and with 
• A useful tool when starting data exploration on a new data set
• At its core, sidetable is a super-charged version of pandas value_counts with a little bit of crosstab mixed in.
• With sidetable is imported, you have a new accessor on all your DataFrames - stb that you can use to build summary tables.

Brian #2: tabulate

• suggested by Tom McDermott
• Pretty-print tabular data in Python, a library and a command-line utility.

    from tabulate import tabulate

    table = [["Sun",696000,1989100000],
             ["Earth",6371,5973.6],
             ["Moon",1737,73.5],
             ["Mars",3390,641.85]]
    headers=["Planet","R (km)", "mass (x 10^29 kg)"]
    table_str = tabulate(table, headers=headers)
    print(table_str)
    Planet      R (km)    mass (x 10^29 kg)
    --------  --------  -------------------
    Sun         696000           1.9891e+09
    Earth         6371        5973.6
    Moon          1737          73.5
    Mars          3390         641.85

• lots of table formats, including
• simple (Markdown extended)
• github (github flavored markdown)
• pipe
• jira
• mediawiki
• html
• plain (just spaces)
• different column alignment options
• number formatting

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