Python 有时pip安装很慢
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Sometimes pip install is very slow
提问by zjffdu
I am sure it is not network issue. Some of my machine install packages using pip is very fast while some other machine is pretty slow, from the logs, I suspect the slow is due to it will compile the package, I am wondering how can I avoid this compilation to make the pip installation fast. Here's the logs from the slow pip installation.
我确定不是网络问题。我的一些机器使用 pip 安装包非常快，而另一些机器很慢，从日志中，我怀疑速度慢是因为它会编译包，我想知道如何避免这种编译来进行 pip 安装快速地。这是来自缓慢 pip 安装的日志。
Collecting numpy==1.10.4 (from -r requirements.txt (line 1))
Downloading numpy-1.10.4.tar.gz (4.1MB)
100% |████████████████████████████████| 4.1MB 95kB/s
Requirement already satisfied (use --upgrade to upgrade): wheel==0.26.0 in ./lib/python2.7/site-packages (from -r requirements.txt (line 2))
Building wheels for collected packages: numpy
Running setup.py bdist_wheel for numpy ... -
done
Stored in directory: /root/.cache/pip/wheels/66/f5/d7/f6ddd78b61037fcb51a3e32c9cd276e292343cdd62d5384efd
Successfully built numpy
回答by code_onkel
The slowness is due to compilation indeed. But there is now the manylinux tag. Which allows the installation of pre-compiled distributions. See for example the PyPI page of numpyto see if a manylinux package is provided for your Python version.
缓慢确实是由于编译。但是现在有了 manylinux 标签。这允许安装预编译的发行版。例如，请参阅numpy的PyPI 页面以查看是否为您的 Python 版本提供了 manylinux 包。
回答by Ans Hafeez
Try this.
尝试这个。
sudo apt-get install python-numpy
Worked for me.
为我工作。
回答by Ramy Rabie
in windows command line
在 Windows 命令行中
Instead of (too slow to complete)
而不是（太慢无法完成）
python -m pip install numpy
This worked (fast as supposed to be)
这有效（应该很快）
pip install numpy
checky by opening -in cmd-
通过打开-in cmd-来检查
python
import numpy as np
(it shouldn't give any errors)
（它不应该给出任何错误）
