GLIBREPYLOT is an LibreOffice/OpenOffice extension project which aims to allow one to easily script Spreadsheets with Python, by embedding Python scripts into the spreadsheets themselves
The contents of tha package should be zipped in a file with the "oxt" extension - that file is then installed as a LibreOffice Extension using the "tools->extension manager" option.
At this point, two new formulae will be available in libreoffice calc: "pyeval" which can receive a string and evaluate a single Python expression and "pyexec" - which evaluates a string as a python program - NB: one can't format line breaks inside formula cells, so it is not possible to create a multi-line script inside the "pyexec" formula - it should instead refer to another text cell containing the script.
For the script, one can use all normal UNO Api's, but there is a SpreadSheet object wrapped in an "S" global variable, which points to the current spreadsheet in a more pythonic way than the UNO Apis - for example, using
S[0]["B2"] = "some text"
will set "some text" as the text in the B2 cell on the first Sheet of the current document. Sheets can be indexed with a pair of numbers - so S[0]["a1"] and S[0][0,0] both refer to the same cell.
Python snippets in a cell can import and use any module available for the Python3 install in use by LibreOffice - on Linux systems, that is usually all system-wide packages. Under Windows one should make intended packages available to the Python install that comes along LibreOffice/OpenOffice
Download the OXT file available at https://github.com/jsbueno/librepylot/releases/latest ,
inside LibreOffice Calc, use tools->Manage Extensions->Add, select the file, and
restart L.O. . The two new formulas will be available.
It is also important to disable smart-quote substitution while trying to
tyoe any Python code (Tools->AutoCorrect->Localized Options, uncheck
"Single Quotes" and "Double Quotes".
If you want to fiddle with the code, or install a development version, to create the OXT file, just zip all contents in a file with an "oxt" extension and add it as a libreOffice extension as described above.