Python defaultdict

>>> s = [('yellow', 1), ('blue', 2), ('yellow', 3), ('blue', 4), ('red', 1)]  
>>> d = defaultdict(list)  
>>> for k, v in s:
...             d[k].append(v)
...  
>>> list(d.items())
 [('blue', [2, 4]), ('red', [1]), ('yellow', [1, 3])]

重新配置debian系统的locales

sudo dpkg-reconfigure locales

从国家统计局下载行政区划码

1、数据来源
     国家统计局网站
     http://www.stats.gov.cn/tjsj/tjbz/tjyqhdmhcxhfdm/2013/index.html

Compiling an example shipped with CGAL

cmake -DCGAL_DIR=/usr/local/Cellar/cgal/4.4

Compiling an example shipped with CGAL is similar simple:

cd examples/Straight_skeleton_2 # go to an example directory
cmake -DCGAL_DIR=$HOME/CGAL-4.6 . # configure the examples
make # build the examples 

Compiling an own non-shipped program is also close:

cd /path/to/program 
cgal_create_CMakeLists -s executable 
cmake -DCGAL_DIR=$HOME/CGAL-4.6 . 
make

where the second line creates a CMakeLists.txt file (check its options in Sectioncgal_create_CMakeLists for various details).

In a less ideal world, you probably have to install CMake, a makefile generator, and third party libraries. That is what this manual is about.

Conforming Triangulations

CGAL 4.6 - 2D Conforming Triangulations and Meshes

CGAL 4.6 - Point Set Processin

CGAL/cgal-swig-bindings

Python Triangle

http://www.cs.berkeley.edu/~jrs/

brew install qt5

4.8.6$brew  install qt5

==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/qt5-5.3.1.m

curl: (35) Server aborted the SSL handshake

Error: Failed to download resource "qt5"

Download failed: https://downloads.sf.net/project/machomebrew/Bottles/qt5-5.3.1.mavericks.bottle.tar.gz

Warning: Bottle installation failed: building from source.

==> Downloading http://download.qt-project.org/official_releases/qt/5.3/5.3.1/si

######################################################################## 100.0%

==> ./configure -prefix /usr/local/Cellar/qt5/5.3.1 -system-zlib -qt-libpng -qt-

==> make

==> make install

==> Caveats

We agreed to the Qt opensource license for you.

If this is unacceptable you should uninstall.

This formula is keg-only, so it was not symlinked into /usr/local.

Qt 5 conflicts Qt 4 (which is currently much more widely used).

Generally there are no consequences of this for you. If you build your

own software and it requires this formula, you'll need to add to your

build variables:

    LDFLAGS:  -L/usr/local/opt/qt5/lib

    CPPFLAGS: -I/usr/local/opt/qt5/include

.app bundles were installed.

Run `brew linkapps` to symlink these to /Applications.

==> Summary

🍺  /usr/local/Cellar/qt5/5.3.1: 5729 files, 177M, built in 28.1 minutes

4.8.6$