LigonLibrary

A Python utility library for working with DataFrames, Google Sheets, fuzzy string matching, and more.

Installation

From PyPI:

pip install ligonlibrary

Or pin in your project's dependencies (e.g. in pyproject.toml):

dependencies = [
    "ligonlibrary>=0.2.1",
]

To install the development version straight from GitHub:

pip install git+https://github.com/ligon/LigonLibrary.git

Requires Python 3.11+.

What's included

DataFrame utilities

get_dataframe(f) — Read a DataFrame from nearly any file: CSV, Excel, Parquet, Feather, Stata (.dta), SPSS, fixed-width, org-tables, and GPG-encrypted variants of all of the above.
df_to_orgtbl(df) — Render a DataFrame as an Emacs org-mode table, with optional standard errors, confidence intervals, and significance stars.
orgtbl_to_df(table) — Parse an org-mode table back into a DataFrame.
df_from_orgfile(path) — Read named tables from .org files.
from_dta(fn) — Read Stata .dta files with automatic label decoding.
normalize_strings(df, ...) — Normalize string columns in a DataFrame.
find_similar_pairs(s1, s2) — Find fuzzy-matching pairs between two Series.

Google Sheets

read_sheets(key, ...) / read_public_sheet(key) — Read a Google Sheet into a DataFrame.
write_sheet(df, key, ...) — Write a DataFrame to a Google Sheet.
delete_sheet(key) — Delete a Google Sheet.
get_credentials(...) — Load Google service-account credentials (supports GPG-encrypted JSON).

String matching

normalized(s) — Normalize a string (case, whitespace, hyphens).
similar(a, b) — Check whether two strings are fuzzy-similar.
most_similar(s, candidates) — Find the best fuzzy match from a list.

Other

email_from_ligon(...) — Send email via the Gmail API.
get_password_for_machine(host) — Look up a password in a GPG-encrypted ~/.authinfo.gpg file, with fallback to pass (password-store).

License

BSD 3-Clause. See LICENSE.

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