jn0

# first off, there is *no* *good* builtin TZ handling in Python.
# No. Nothing. At all.
# you have to `pip install pytz pytzdata tzlocal` to survive...
# maybe.
# he-he.

import datetime
import tzlocal

right_now_and_here = datetime.datetime.now().replace(tzinfo=tzlocal.get_localzone())

jn0

#!/usr/bin/python
# -*- coding: UTF-8 -*-
'''
Custom SSH client.

1. It somehow _supports_ async execution.
2. It provides exit status.
3. It jams stdin (ssh -nT).

Run like something "python ssh.py box user=bs command='echo aaa; echo bbb >&2; sleep 40; exit 23'" to test

jn0

.SUFFIXES: # Delete the default suffixes
.SUFFIXES: .c .o .py .so

.py.c:
	cython -2 $<
.c.o:
	gcc -pthread -Wno-unused-result -DNDEBUG -g -fwrapv -O3 \
		-Wall -Wstrict-prototypes -Wstrict-aliasing \
		-fPIC -I/usr/include/python2.7/ -c $< -o $@

jn0

How to build a binary version of a pure Python package and make it pure binary

The package

Let we have a package that looks this way:

• mext/ package directory
  • __init__.py package "constructor" module
  • m1.py package member module #1
• m2.py package member module #2

jn0

#!/usr/bin/python
# a tool to allow only one instance of the command to be ran at once
# host-wide exclusive lock
# no lock- or pid- files, never-used-port is "locked" instead
# written after http://timkay.com/solo/ idea

THE_POINT_TO_LOCK = ("127.1.2.3", 9000)

import sys
import os

jn0

#!/usr/bin/python
'''
i18n.py

Use `from my_project.i18n import _` in source files to be localized.

Inspired by https://www.mattlayman.com/2015/i18n.html
'''

APP_NAME = 'cluster_sim'

jn0

import __builtin__

class HashableDict(__builtin__.dict):
    '''and with .attr capability'''

    def __init__(self, *av, **kw):
        return __builtin__.dict.__init__(self, *av, **kw)

    @staticmethod
    def dict__hash(d):

jn0

import argparse

class AP(argparse.ArgumentParser):
    def add(self, *av, **kw):
        if 'default' not in kw:
            if kw.get('action') == 'count':
                kw['default'] = 0
        self.add_argument(*av, **kw)
        return self
#end class AP

jn0

import os
try:
    import ConfigParser
except ImportError: # python3?
    import configparser as ConfigParser

dot_git_config = os.path.join('.git', 'config')

class GitConfigParser(ConfigParser.RawConfigParser):
    def _read(self, fp, filename=None):

jn0

Fix SVG Utility

The fixsvg.py is intended to flatten an SVG generated by a converter (in my case - from Acme CAD Converter, which "Converts DWG, DXF, DWF to SVG", ran on an AutoCAD drawing).

My savings was 65%: 2MB of converted SVG versus 700KB of "fixed" one.

Converters often leave a lot of extraneous stuff in the SVG pathes like forced Move before any Line as well as single path splet over several tags.