mkaz

10 Scala One Liners to Impress Your Friends

Here are 10 one-liners which show the power of scala programming, impress your friends and woo women; ok, maybe not. However, these one liners are a good set of examples using functional programming and scala syntax you may not be familiar with. I feel there is no better way to learn than to see real examples.

Updated: June 17, 2011 - I'm amazed at the popularity of this post, glad everyone enjoyed it and to see it duplicated across so many languages. I've included some of the suggestions to shorten up some of my scala examples. Some I intentionally left longer as a way for explaining / understanding what the functions were doing, not necessarily to produce the shortest possible code; so I'll include both.

1. Multiple Each Item in a List by 2

The map function takes each element in the list and applies it to the corresponding function. In this example, we take each element and multiply it by 2. This will return a list of equivalent size, compare to o

messefor

"""Example to show how to plot histogram with accumulate ratio.

Plot multiple histogram using seaborn.FacetGrid()
"""
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns

% matplotlib inline

quiver

#!/usr/bin/env python
# vim: set fileencoding=utf8 :
```
$ pip install -U boto3 retrying
$ export AWS_DEFAULT_PROFILE=test
$ cat foo.sql
select count(*)
from bar
$ python athena.py foo.sql
$ ls -1

wassname

"""
In jupyter notebook simple logging to console
"""
import logging
import sys

logging.basicConfig(stream=sys.stdout, level=logging.INFO)

# Test
logger = logging.getLogger('LOGGER_NAME')

tossmilestone

How to manually setup flake8 as PyCharm external tool

File / Settings / Tools / External Tools / Add
Name: Flake8
Program: $PyInterpreterDirectory$/python
Parameters: -m flake8 --max-complexity 10 --ignore E501 $FilePath$
Working directory: $ProjectFileDir$

Output Filters / Add
Name: Filter 1

tylerneylon

#!/bin/bash
#
# Convert all new Jupyter notebooks to straight Python files for easier code
# reviews.
#

for file in $(git diff --cached --name-only); do
    if [[ $file == *.ipynb ]]; then
        jupyter nbconvert --to script $file
        git add ${file%.*}.py

bogdan-kulynych

# WARNING: These steps seem to not work anymore!

#!/bin/bash

# Purge existign CUDA first
sudo apt --purge remove "cublas*" "cuda*"
sudo apt --purge remove "nvidia*"

# Install CUDA Toolkit 10
wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-repo-ubuntu1804_10.0.130-1_amd64.deb

2KAbhishek

Shell Keybindings

Navigation 🚀

Keybinding	Action
Alt + f/b	Move cursor to previous/next word
Ctrl + a/e	Move cursor to beginning/end of command
Ctrl + xx	Toggle between the start of line and current cursor position

bradtraversy

MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database

tvst

"""Hack to add per-session state to Streamlit.

Usage
-----

>>> import SessionState
>>>
>>> session_state = SessionState.get(user_name='', favorite_color='black')
>>> session_state.user_name
''