麻烦在amazon ec2 linux微实例上安装scimy在virtualenv

Question

我已成功安装scipy在亚马逊ec2微实例(Ubuntu 13.04)上的默认python编译器中.但是我无法安装scipyvirtualenv.

pip install scipy 以此错误结束

scipy/sparse/sparsetools/csr_wrap.cxx: In function ‘void init_csr()’:

scipy/sparse/sparsetools/csr_wrap.cxx:73303:21: warning: variable ‘md’ set but not used [-Wunused-but-set-variable]

c++: internal compiler error: Killed (program cc1plus)

Please submit a full bug report,

with preprocessed source if appropriate.

See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.

----------------------------------------
Cleaning up...
Command /home/ubuntu/pnr/bin/python -c "import setuptools;__file__='/home/ubuntu/pnr/build/scipy/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-t8Drvd-record/install-record.txt --single-version-externally-managed --install-headers /home/ubuntu/pnr/include/site/python2.7 failed with error code -9 in /home/ubuntu/pnr/build/scipy

和

Traceback (most recent call last):
  File "/home/ubuntu/pnr/bin/pip", line 9, in <module>
    load_entry_point('pip==1.4.1', 'console_scripts', 'pip')()
  File "/home/ubuntu/pnr/local/lib/python2.7/site-packages/pip/__init__.py", line 148, in main
    return command.main(args[1:], options)
  File "/home/ubuntu/pnr/local/lib/python2.7/site-packages/pip/basecommand.py", line 169, in main
    text = '\n'.join(complete_log)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 53: ordinal not in range(128)

在有人问之前.pip freeze默认编译器返回

Cheetah==2.4.4
Landscape-Client==12.12
M2Crypto==0.21.1
PAM==0.4.2
Pillow==2.0.0
PyYAML==3.10
Twisted-Core==12.3.0
Twisted-Names==12.3.0
Twisted-Web==12.3.0
apt-xapian-index==0.45
argparse==1.2.1
boto==2.3.0
chardet==2.0.1
cloud-init==0.7.2
configobj==4.7.2
distribute==0.6.34
distro-info==0.10
euca2ools==2.1.1
numpy==1.7.1
oauth==1.0.1
paramiko==1.7.7.1
prettytable==0.6.1
pyOpenSSL==0.13
pycrypto==2.6
pycurl==7.19.0
pygobject==3.8.0
pyserial==2.6
python-apt==0.8.8ubuntu6
python-debian==0.1.21-nmu2ubuntu1
requests==1.1.0
scipy==0.11.0
six==1.2.0
ssh-import-id==3.14
urllib3==1.5
virtualenv==1.10.1
wsgiref==0.1.2
zope.interface==4.0.5

pip freeze virtualenv命令返回

Cython==0.19.2
Flask==0.10.1
Flask-Bootstrap==3.0.0.1
Flask-WTF==0.9.3
Jinja2==2.7.1
MarkupSafe==0.18
WTForms==1.0.5
Werkzeug==0.9.4
argparse==1.2.1
beautifulsoup4==4.3.2
itsdangerous==0.23
numpy==1.7.1
pymongo==2.6.2
requests==2.0.0
wsgiref==0.1.2

Answer 1

一种解决方案是暂时启用微实例的交换.如此SO帖子所述,通过以下方式启用1gb交换:

sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswap /var/swap.1
sudo /sbin/swapon /var/swap.1

打开交换后,通过pip安装scipy:

sudo apt-get install -y libatlas-base-dev gfortran python-dev build-essential g++
sudo pip install numpy
sudo pip install scipy

一旦scipy成功安装,您可以通过以下方式禁用它:

sudo swapoff /var/swap.1
sudo rm /var/swap.1

Answer 2

这对我有用:

pip --no-cache-dir install scipy

看到:

• 使用pip安装Matplotlib时出现内存错误

  https://github.com/pypa/pip/blob/9a23d4ed119327d3b823ec223aaead90964bac58/pip/basecommand.py#L56-L63

• https://github.com/pypa/pip/blob/28cca11e284b37cc2c7977fd25be6f494adda9d3/src/pip/_internal/download.py#L359-L367

注意:

• 适用于其他服务提供商,硬件,VM和容器.
• 如果RAM分配大小为1GB
• 只计算缓存的目录内存使用量和可用内存之间的差异

Answer 3

是的,512MB不足以编译该C++文件.

您最好的选择是将Scipy构建为二进制包(bdist,或鸡蛋,或更现代的轮子),例如通过python setupegg.py bdist_egg具有兼容环境的不同机器.例如,在虚拟机中使用与EC2实例类似的Linux版本.

一般来说,记住在pip安装软件包时,它会编译源文件.如果包不是很小,这是低效的,并且最好使用二进制包.该wheel封装格式应该与画中画以及一起玩.