terrydang

Ubuntu 16.04 安装英伟达（Nvidia）显卡驱动

配有英伟达显卡的主机，装完 Ubuntu 16.04 后出现闪屏现象，是由于没有安装显卡驱动。

显卡型号
NVIDIA Corporation GM204 [GeForce GTX 970]

evantoli

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

schminitz

ZSH_THEME_GIT_PROMPT_PREFIX=" %{$fg[cyan]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[red]%}✘"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[green]%}✔"
ZSH_THEME_GIT_PROMPT_AHEAD="%{$fg[red]%}➦"

# ZSH_THEME_GIT_PROMPT_ADDED="%{$fg[cyan]%} ✈"
# ZSH_THEME_GIT_PROMPT_MODIFIED="%{$fg[yellow]%} ✭"
# ZSH_THEME_GIT_PROMPT_DELETED="%{$fg[red]%} ✗"
# ZSH_THEME_GIT_PROMPT_RENAMED="%{$fg[blue]%} ➦"

ilyaigpetrov

Retrieve .pyc Grammar from Python's Sources

About my endeavor to automatically retrieve grammar of CPython .pyc-files bytecode from Python's sources itself (success) and build parser on them (failed).
Most recent version of this article is always on GitHub

The problem story

In 2011 as part of my diploma thesis I came up with an assembler language for .pyc files and wrote a simple proof-of-concept assembler for it based on ANTLR3 parser generator. Back then I stumble upon the issue that CPython bytecode is somewhat not stable and differs from version to version. I.e., as of Python from 3.0 to 3.4 there are 28 incompatible bytecode versions (you may find all bytecode versions with their descriptions in Python34/Lib/importlib/_bootstrap.py).

So, if we aim to devise an assembler or disassembler not for one bytecode version but for many, we face a routine of retrieving out these bytecode differences. This task strikingly

adamnew123456

"""
Inserts C code directly into Python files, which can then be dynamically linked
in and called via ctypes.
"""
import atexit
import ctypes
import os
import shlex
import sys
import tempfile

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

dblock

class ApiLogger < Grape::Middleware::Base
  
  def before
    Rails.logger.info "[api] Requested: #{request_log_data.to_json}\n" +
     "[api] #{response_log_data[:description]} #{response_log_data[:source_file]}:#{response_log_data[:source_line]}"
  end
  
private

  def request_log_data

yesmeck

Git 协作流程

master 分支

master 永远处于稳定状态，这个分支代码可以随时用来部署。不允许在该分支直接提交代码。

develop 分支

开发分支，包含了项目最新的功能和代码，所有开发都在 develop 上进行。一般情况下小的修改直接在这个分支上提交代码。

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

niwinz

Django Model Hooks (prototype)

System hooks to insert raw sql.

References on django-developers google group:

* https://groups.google.com/forum/?fromgroups#!topic/django-developers/xN0aMzrmA1Y
* https://groups.google.com/forum/?fromgroups#!topic/django-developers/KhsGj1b6rnU