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Michael F. Lamb datagrok

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@queertypes
queertypes / .psqlrc.sql
Last active Feb 12, 2017
Allele's psqlrc
View .psqlrc.sql
-- make psql really quiet while the next several commands are processed
\set QUIET 1
-- a colorful prompt that displays, in order:
-- * hostname (green)
-- * port number (yellow)
-- * user (blue)
-- * database (purple)
-- in the format: host:port user@db#
\set PROMPT1 '%[%033[1;32m%]%M:%[%033[1;33m%]%> %[%033[1;34m%]%n@%[%033[1;35m%]%/%R%[%033[0m%]%# '
@ftfarias
ftfarias / README.md
Created Jan 24, 2017 — forked from datagrok/README.md
Circular imports in Python 2 and Python 3: when are they fatal? When do they work?
View README.md

When are Python circular imports fatal?

In your Python package, you have:

  • an __init__.py that designates this as a Python package
  • a module_a.py, containing a function action_a() that references an attribute (like a function or variable) in module_b.py, and
  • a module_b.py, containing a function action_b() that references an attribute (like a function or variable) in module_a.py.

This situation can introduce a circular import error: module_a attempts to import module_b, but can't, because module_b needs to import module_a, which is in the process of being interpreted.

But, sometimes Python is magic, and code that looks like it should cause this circular import error works just fine!

@nrb
nrb / y260.md
Created Apr 28, 2016
Unorganized notes about getting ArchLinux running on a Lenovo Thinkpad Y260
View y260.md

Installing

Disable SecureBoot for the time being.

For booting my Archlinux kernel (4.3 series on the USB drive I made), I needed the following options:

nomodeset intel_pstates=no_hwp

You can edit the parameters by hitting the e key on the ArchISO boot option

View cantspell.py
File Edit Options Buffers Tools Python Help
#!/usr/bin/python3
"""
"You can't spell 'skateboarding' without d-a-t-a-g-r-o-k."
Usage: python3 cantspell.py WORD
Prints all the words in its dictionary that contain at least all the
letters given in WORD
"""
from collections import Counter
View gist:3f1ca9bd4ba8d2028526
So let's consider a small business that runs a website that happens to run on GPL'd software. They don't know anything about the GPL but they paid a local web shop to set it up on their shared web host. They don't have to know that the GPL requires them to provide source code if they convey a copy because they don't convey
Let's say the same business runs a wwebsite that runs on AGPL software. They don't know anything about the AGPL but they paid a local web shop to set it up on their shared web host. What happens when someone requests a copy of the source? The answer will likely be "what's source code?"
The local business doesn't want to pay someone to get them the source. And we can't even tell them "give us the contents of directory holding the web site" because that might contain private configuration information which isn't covered by the AGPL.
This is why I don't normally recommend AGPL software to anyone unless they already understand licensing and source code.
@vanstee
vanstee / Makefile
Created May 28, 2015
Building frontend stuff with make
View Makefile
# Base dirs
SRC_DIR = src
TMP_DIR = tmp
DEV_DIR = dev
SRC_PUBLIC_DIR := $(SRC_DIR)/public
SRC_STYLES_DIR := $(SRC_DIR)/styles
SRC_SCRIPTS_DIR := $(SRC_DIR)/scripts
TMP_SCRIPTS_DIR := $(TMP_DIR)/scripts
DEV_PUBLIC_DIR := $(DEV_DIR)/public
DEV_STYLES_DIR := $(DEV_DIR)/styles
@alfredodeza
alfredodeza / whisper.vim
Created May 11, 2015
map the undo to whisper balls
View whisper.vim
" I don't remember exactly how to make it not spit out the actual command you are running. Meh.
nnoremap u :call system("say -v whisper 'balls'")<CR>
@mattvonrocketstein
mattvonrocketstein / pybcompgen.py
Last active Aug 29, 2015
Pybcompgen calculates context sensitive tab-completion data from environment bash system settings
View pybcompgen.py
#!/usr/bin/env python
""" pybcompgen
Pybcompgen calculates context sensitive tab-completion data which is
derived from environment bash system settings. It doesn't need to know
anything about whether you use /etc/completion or /etc/bash_completion.d,
all that matters is whether *bash* knows about the completion. The benefit
of doing this are obvious: you get access to all the completion features
that the system has installed without caring how the completion features
work. Note that this approach doesn't just work for things in the users
@debasishg
debasishg / gist:8172796
Last active Mar 13, 2019
A collection of links for streaming algorithms and data structures
View gist:8172796
  1. General Background and Overview
@wolever
wolever / git-unpull
Last active Dec 21, 2015
git-unpull: undoes the merge commit created by an accidental 'git pull', plus some added helpful information!
View git-unpull
#!/bin/bash
# Reverts HEAD back to ORIG_HEAD, for example after a 'git pull' accidentally
# creates a merge. This is identical to running 'git reset --hard ORIG_HEAD',
# except that unpull prints some helpful information along the way.
# Useage:
# $ git unpull
# HEAD: a0ac0fd Merge branch 'master' of /tmp/foo
# 2284c9d some remote commit
# ORIG_HEAD: 35431fd my local commit
# Really reset HEAD to ORIG_HEAD? (y/n) y
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