zed

def f():
    print(__name__)
    print(type(__builtins__))

f()
if __name__=="__main__":
   import show_builtins_type

zed

Create a Postgis timezone DB

Ubuntu's analog of robcowie / postgis_timezone_db.markdown

Install postgis

sudo apt-get install python-software-properties
sudo apt-add-repository ppa:ubuntugis/ppa
sudo apt-get update

sudo apt-get install postgresql-9.1-postgis

zed

# -*- coding: utf-8 -*-
import inspect
import sys
import timeit
from functools import partial, wraps
from timeit import default_timer as timer

__version__ = "0.3.0"

zed

#!/usr/bin/env python
"""Merge sort a singly linked linear list."""
import random
from itertools import product

# Linked list is either empty or a value and a link to the next list
empty = None # empty list

class LL(object):
    __slots__ = "value", "next"

zed

import sys
from subprocess import call

for i in range(11):
    print("1e%d:" % i)
    sys.stdout.flush()
    call([sys.executable, '-m', 'timeit',
          '-s', 'import numpy as np; a = np.zeros(10**%d, dtype=bool)' % i,
          'a.all()']) # all() should return after the first check (zeros)

zed

#!/usr/bin/env python3
import locale
import os
import sys


envname = "PYTHONIOENCODING"
print("{}:\t{}".format(envname, os.environ.get(envname)))

for set_locale in [False]:

zed

#!/usr/bin/env python3
"""Emulate bash:

    $ cat /tmp/fifo.tub &
    $ gunzip -c /tmp/filedata.dat.gz > /tmp/fifo.tub

http://stackoverflow.com/questions/19859283/python-subprocess-hangs-with-named-pipes
"""
import os
from contextlib import contextmanager

zed

#!/usr/bin/env python
"""Show messages in two new console windows simultaneously.

See http://stackoverflow.com/q/19479504
"""
import sys
import platform
from subprocess import Popen

messages = 'This is Console1', 'This is Console2'

zed

#!/usr/bin/env python
"""Demo for [gobject.timeout_add_seconds fails after system hibernation][1]

[1]: http://stackoverflow.com/q/19882390/
"""
import time
import gtk, glib

def callback():
    print(time.asctime())

zed

/* pipe/fork/dup2/execve exercise.

   The results are similar to: `sort -u --parallel 2 < input_file`

   http://stackoverflow.com/questions/19876980/create-2-child-processes-to-sort-words-of-a-file-using-pipe

   Usage:

   $ gcc -o sort-parallel-uniq *.c && ./sort-parallel-uniq < input_file
*/