dan-blanchard

For ETS's SKLL project, we found out the hard way that Travis-CI's support for numpy and scipy is pretty abysmal. There are pre-installed versions of numpy for some versions of Python, but those are seriously out of date, and scipy is not there are at all. The two most popular approaches for working around this are to (1) build everything from scratch, or (2) use apt-get to install more recent (but still out of date) versions of numpy and scipy. Both of these approaches lead to longer build times, and with the second approach, you still don't have the most recent versions of anything. To circumvent these issues, we've switched to using Miniconda (Anaconda's lightweight cousin) to install everything.

A template for installing a simple Python package that relies on numpy and scipy using Miniconda is provided below. Since it's a common s

carljm

export GEM_HOME=$VIRTUAL_ENV/rubygems
export GEM_PATH=

export PATH=$VIRTUAL_ENV/rubygems/bin:$PATH

aaugustin

Kerberos setup

This guide explains how to set up Kerberos authentication for:

• SSH access to a server,
• HTTP access to a service.

It assumes you're running Active Directory and Debian servers.

sebleier

idan

def explode_hstore(df, column):
    """Explode a column of a dataframe containing PostgreSQL hstore k-v pairs in the format of:
    
    "foo"=>"bar", "baz"=>"quux", ...
    
    Every key becomes a column. If a given row's pairs doesn't have a key, then the resulting column's value
    will contain NaN.
    """
    # split the tags column out as a new series, and break up each k=>v pair
    s = df[column].str.split(', ').apply(pd.Series, 1).stack()

brosner

Prepare by switching out of bash from Homebrew:

chsh -s /bin/zsh

To clean my system and reinstall Homebrew:

rm -rf ~/.local && mkdir ~/.local
rm -rf ~/Library/Caches/pip
rm -rf ~/.pyenv

rm -rf ~/.yarn

geoom

// first make "pairing" with HC-06 devise
// view devises list by running 'ls /dev/tty.* in terminal, you can see /dev/tty.HC-06-DevB on the list
// then go to arduino editor, and choose your devise bluetooth under the 'Tools > Serial port' menu
// Now open the serial monitor (Tools > Serial monitor). 
// You should notice that the red led of the bluetooth module has stopped blinking. That means we are connected!
// Now when you send a “1” the led on the pin 13 should turn ON, and if you send a “0” it should turn off. 

void setup() {
  // initialize serial:

daneden

How to remap the caps lock key to the emoji selector on Mac

1. Go to System Preferences -> Keyboard -> Modifier Keys...
2. Change “Caps Lock” to “No action”
3. Install Seil
4. Change the Caps Lock key in Seil to keyCode 80 (F19)
5. Install Karabiner
6. Open Karabiner and go to Misc & Uninstall -> Open private.xml
7. Copy the contents of this gist's example to the XML file and save
8. In Karabiner, go to Change Keys -> Reload XML

jnoller

Internal Communication DRAFT

• Use asynchronous communication when possible (issues and email instead of chat), issues are preferred over email, email is preferred over chat, announcements happen via email or team standup, and people should be able to do their work without getting interrupted by chat.
  • More importantly, a verbal or chat record does not spread communication widely and can vary based the person delivering the message (bias) or other tribal interpretation. A written record is always critical when it comes to questions, strategy and decisions. When decisions or information is ad-hoc is reinforces the idea that people are treated unequally, do not have a voice and are kept in the dark.
• It is very OK to ask as many questions as you have, but ask them so many people can answer them and many people see the answer (so use issues or public chat channels instead of private messages or one-on-one emails) and make sure you try to document the answers.
• If applicable, use github to track

bmhatfield

# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env
# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced
# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start
# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running.

# Add the following to your shell init to set up gpg-agent automatically for every shell
if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then
    source ~/.gnupg/.gpg-agent-info
    export GPG_AGENT_INFO
else