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mara004

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gist.github.com/mara004 || PEP opinions ✅ 616, 690, 701, 703, 706, 3136.A | 🟡 572 | ❌ 634-636

mara004 / 01_win_opensource.md

Last active September 19, 2024 23:30

Interesting Windows(-only) software

Open-source

mara004 / labelling.py

Last active September 13, 2024 15:07

Enumerate data using letters rather than numbers

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0

	from string import ascii_uppercase as ALPHABET

	N_CHARS, ORD_A = 26, 65 # len(ALPHABET), ord("A")

	def idx_to_label(i):
	count, remainder = divmod(i, N_CHARS)
	char = ALPHABET[remainder] # chr(remainder + ORD_A)

mara004 / deferred_imports.py

Last active September 4, 2024 00:04

Various attempts at deferred ("lazy") imports. None of these seems particularly satisfying, though. Missing PEP 690...

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause OR MPL-2.0

	import sys
	import importlib.util

	def v1_deferred_import(modpath):

	# FIXME If modpath points to a submodule (e.g. PIL.Image), the parent module will be loaded immediately when this function is called. What's more, non-deferred imports of the submodule will break. This seems to be a nasty limitation of the importlib APIs used here.

mara004 / ghostscript_shell.py

Last active August 26, 2024 23:35

PDF rendering with Ghostscript (via subprocess)

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-FileCopyrightText: 2024 James R. Barlow <james@purplerock.ca>
	# SPDX-License-Identifier: MPL-2.0

	# Initial code derived from ocrmypdf/_exec/ghostscript.py
	# Note that Ghostscript is AGPL-licensed. However, we are calling it via subprocess here, so not sure whether copyleft would actually apply.
	# See also https://www.gnu.org/licenses/gpl-faq.en.html#MereAggregation

	import io
	import os

mara004 / pymupdf.py

Created July 11, 2024 20:10

PDF rendering with pymupdf

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0
	# Note that (py)mupdf is AGPL-licensed, so this code is altogether affected by copyleft

	import PIL.Image
	import fitz as pymupdf


	def invoke_pymupdf(filepath, index, scale=4, rotation=0, password=None):

mara004 / poppler_qt5.py

Last active July 13, 2024 14:31

PDF rendering with poppler-qt5

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0
	# Note that Poppler is GPL-licensed, so this code is altogether affected by copyleft

	import io
	import PIL.Image
	from popplerqt5 import Poppler
	from PyQt5.QtCore import QByteArray, QBuffer

mara004 / poppler.py

Last active July 11, 2024 20:35

PDF rendering with python-poppler

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0
	# Note that Poppler is GPL-licensed, so this code is altogether affected by copyleft

	import PIL.Image
	import poppler # python-poppler
	from poppler.cpp.page_renderer import render_hint


	def _translate_rotation(rotation):

mara004 / poppler_gtk.py

Last active September 6, 2024 18:40

PDF rendering with poppler-gtk

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0
	# Note that Poppler is GPL-licensed, so this code is altogether affected by copyleft

	import math
	from pathlib import Path
	import PIL.Image

	import cairo
	import gi

mara004 / pnp.py

Last active September 11, 2024 00:33

Page number spec parser [Draft]

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: MPL-2.0

	# Sophisticated parser for a page number spec mini-language
	# Technically, this might be a use case for some parser generator like pyparsing or PLY, but this is a manual implementation based on common string operations.

	__all__ = ["parse_pagenums"]

	import re
	import logging

mara004 / argparse_compat.py

Last active July 21, 2024 22:34

Argparse compat extensions

	# SPDX-FileCopyrightText: 2024 geisserml <geisserml@gmail.com>
	# SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause

	import sys
	import argparse

	if sys.version_info >= (3, 9):
	from argparse import BooleanOptionalAction

	else: