ubuntu14.04 Anaconda 的安装使用

利用anaconda来配置python环境

先到https://www.continuum.io/downloads 下载anaconda, 现在的版本有python2.7版本和python3.6版本，下载好对应版本、对应系统的anaconda，它实际上是一个sh脚本文件，大约500M左右。我下载的是linux版的python 2.7版本。

下载成功后，在终端执行（2.7版本）：

# bash Anaconda2-2.4.1-Linux-x86_64.sh

在安装的过程中，会问你安装路径，直接回车默认就可以了。有个地方问你是否将anaconda安装路径加入到环境变量（.bashrc)中，这个一定要输入yes

安装成功后，会有当前用户根目录下生成一个anaconda2的文件夹，里面就是安装好的内容。

输入conda list 就可以查询，你现在安装了哪些库，常用的numpy, scipy名列其中。如果你还有什么包没有安装上，可以运行

conda install ***  来进行安装，

如果某个包版本不是最新的，运行 conda update *** 就可以了。

首次conda list 出现找不到这个命令的错误：在终端输入export PATH=~/anaconda2/bin：$PATH

编译python接口

首先，将caffe根目录下的python文件夹加入到环境变量

打开配置文件bashrc，在最后面加入

export PYTHONPATH=/home/xxx/caffe/python:$PYTHONPATH

sudo ldconfig

因为之前配置好的caffe，，不能再继续执行sudo make与sudo make python等指令，，首先运行

sudo make cleansudo make pycaffe cleansudo make test cleansudo make runtest clean

然后修改Makefile.config文件，下边是我的

## Refer to http://caffe.berkeleyvision.org/installation.html# Contributions simplifying and improving our build system are welcome!# cuDNN acceleration switch (uncomment to build with cuDNN). USE_CUDNN := 1# CPU-only switch (uncomment to build without GPU support).# CPU_ONLY := 1# uncomment to disable IO dependencies and corresponding data layers# USE_OPENCV := 1# USE_LEVELDB := 0# USE_LMDB := 0# uncomment to allow MDB_NOLOCK when reading LMDB files (only if necessary)#You should not set this flag if you will be reading LMDBs with any#possibility of simultaneous read and write# ALLOW_LMDB_NOLOCK := 1# Uncomment if you're using OpenCV 3 OPENCV_VERSION := 3# To customize your choice of compiler, uncomment and set the following.# N.B. the default for Linux is g++ and the default for OSX is clang++# CUSTOM_CXX := g++# CUDA directory contains bin/ and lib/ directories that we need.CUDA_DIR := /usr/local/cuda# On Ubuntu 14.04, if cuda tools are installed via# "sudo apt-get install nvidia-cuda-toolkit" then use this instead:# CUDA_DIR := /usr# CUDA architecture setting: going with all of them.# For CUDA < 6.0, comment the *_50 lines for compatibility.CUDA_ARCH := -gencode arch=compute_20,code=sm_20 \-gencode arch=compute_20,code=sm_21 \-gencode arch=compute_30,code=sm_30 \-gencode arch=compute_35,code=sm_35 \-gencode arch=compute_50,code=sm_50 \-gencode arch=compute_50,code=compute_50# BLAS choice:# atlas for ATLAS (default)# mkl for MKL# open for OpenBlasBLAS := atlas# Custom (MKL/ATLAS/OpenBLAS) include and lib directories.# Leave commented to accept the defaults for your choice of BLAS# (which should work)!# BLAS_INCLUDE := /path/to/your/blas# BLAS_LIB := /path/to/your/blas# Homebrew puts openblas in a directory that is not on the standard search path# BLAS_INCLUDE := $(shell brew --prefix openblas)/include# BLAS_LIB := $(shell brew --prefix openblas)/lib# This is required only if you will compile the matlab interface.# MATLAB directory should contain the mex binary in /bin.# MATLAB_DIR := /usr/local# MATLAB_DIR := /Applications/MATLAB_R2012b.app# NOTE: this is required only if you will compile the python interface.# We need to be able to find Python.h and numpy/arrayobject.h.PYTHON_INCLUDE := /usr/include/python2.7 \/usr/lib/python2.7/dist-packages/numpy/core/include# Anaconda Python distribution is quite popular. Include path:# Verify anaconda location, sometimes it's in root. ANACONDA_HOME := $(HOME)/anaconda2 PYTHON_INCLUDE := $(ANACONDA_HOME)/include \ $(ANACONDA_HOME)/include/python2.7 \ $(ANACONDA_HOME)/lib/python2.7/site-packages/numpy/core/include \# Uncomment to use Python 3 (default is Python 2)# PYTHON_LIBRARIES := boost_python3 python3.5m# PYTHON_INCLUDE := /usr/include/python3.5m \#                 /usr/lib/python3.5/dist-packages/numpy/core/include# We need to be able to find libpythonX.X.so or .dylib.PYTHON_LIB := /usr/lib# PYTHON_LIB := $(ANACONDA_HOME)/lib# Homebrew installs numpy in a non standard path (keg only)# PYTHON_INCLUDE += $(dir $(shell python -c 'import numpy.core; print(numpy.core.__file__)'))/include# PYTHON_LIB += $(shell brew --prefix numpy)/lib# Uncomment to support layers written in Python (will link against Python libs) WITH_PYTHON_LAYER := 1# Whatever else you find you need goes here.INCLUDE_DIRS := $(PYTHON_INCLUDE) /usr/local/include /usr/include/hdf5/serial/LIBRARY_DIRS := $(PYTHON_LIB) /usr/local/lib /usr/lib# If Homebrew is installed at a non standard location (for example your home directory) and you use it for general dependencies# INCLUDE_DIRS += $(shell brew --prefix)/include# LIBRARY_DIRS += $(shell brew --prefix)/lib# Uncomment to use `pkg-config` to specify OpenCV library paths.# (Usually not necessary -- OpenCV libraries are normally installed in one of the above $LIBRARY_DIRS.)USE_PKG_CONFIG := 1# N.B. both build and distribute dirs are cleared on `make clean`BUILD_DIR := buildDISTRIBUTE_DIR := distribute# Uncomment for debugging. Does not work on OSX due to https://github.com/BVLC/caffe/issues/171# DEBUG := 1# The ID of the GPU that 'make runtest' will use to run unit tests.TEST_GPUID := 0# enable pretty build (comment to see full commands)Q ?= @

然后执行

sudo make sudo make pycaffe sudo make test sudo make runtest 

sudo make runtest 没编译过去，也不是必须的，先不管了。。

最终查看python接口是否编译成功：

进入python环境，进行import操作

pythonimport caffe

如果没有提示错误，则编译成功

安装jupyter

安装了python还不行，还得安装一下ipython，后者更加方便快捷，更有自动补全功能。而ipython notebook是ipython的最好展现方式。最新的版本改名为jupyter notebook,我们先来安装一下。（如果安装了anaconda, jupyter notebook就已经自动装好，不需要再安装）

sudo pip install jupyter 提示sudo：pip：command not find

去掉sudo 执行，，成功安装！！

原因是：我们知道在执行Linux命令时，如果在其前面加上sudo，就表示以root权限执行。但是这其实是有一个前提的，就是只有那些Linux内置系统命令才可以用如此的形式来执行，而对于Shell内置命令或其他用户自定义命令、别名等，是不能用sudo来使用root权限的。

$ jupyter notebook

就会在浏览器中打开notebook,  点击右上角的New-python2, 就可以新建一个网页一样的文件，扩展名为ipynb。在这个网页上，我们就可以像在命令行下面一样运行python代码了。输入代码后，按shift+enter运行，更多的快捷键，可点击上方的help-Keyboard shortcuts查看，或者先按esc退出编辑状态，再按h键查看。

在jupyter里输入

import numpy as npimport matplotlib.pyplot as plt%matplotlib inlineimport caffecaffe_root='/home/shan/caffe/'import os,sysos.chdir(caffe_root)sys.path.insert(0,caffe_root+'python')im = caffe.io.load_image('examples/images/cat.jpg')print im.shapeplt.imshow(im)plt.axis('off')

报错：No module named google.protobuf.internal

解决：sudo chmod 777 -R anaconda2

        conda install protobuf