使用 python3.5 pip 安装 Numpy

Question

我有很多问题要安装 numpy 包。当我执行 pip 命令时

pip install numpy

我收到以下错误

连接被 'ConnectTimeoutError(, '连接到 pypi.python.org 超时。(连接超时 = 15)' 后重试 (Retry(total=4, connect=None, read=None, redirect=None)) )': /simple/numpy/找不到满足numpy要求的版本（来自版本：） 没有找到 numpy 的匹配分布

当我使用easy_insall 命令时，我得到以下错误

搜索 numpy 超时 -- 可能找不到某些包！ 找不到“numpy”的索引页（可能拼写错误？） 所有包裹的扫描索引（这可能需要一段时间） 阅读https://pypi.python.org/simple/ https://pypi.python.org/simple/ 上的下载错误：超时 -- 可能找不到某些包！ 没有找到 numpy 的本地包或下载链接 错误：找不到 Requirement.parse('numpy') 的合适分布

当我使用手动添加包时

python setup.py install

我收到以下错误：

Running from numpy source directory.
Cythonizing sources
numpy/random\mtrand\randint_helpers.pxi.in has not changed
Processing numpy/random\mtrand\mtrand.pyx
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named 'Cython'
Traceback (most recent call last):
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 70, in process_pyx
    r = subprocess.call(['cython'] + flags + ["-o", tofile, fromfile])
  File "C:\Users\Hazem\AppData\Local\Programs\Python\Python35\lib\subprocess.py", line 560, in call
    with Popen(*popenargs, **kwargs) as p:
  File "C:\Users\Hazem\AppData\Local\Programs\Python\Python35\lib\subprocess.py", line 950, in __init__
    restore_signals, start_new_session)
  File "C:\Users\Hazem\AppData\Local\Programs\Python\Python35\lib\subprocess.py", line 1220, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 220, in <module>
    main()
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 216, in main
    find_process_files(root_dir)
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 208, in find_process_files
    process(cur_dir, fromfile, tofile, function, hash_db)
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 167, in process
    processor_function(fromfile, tofile)
  File "C:\Hazem\Python packages\numpy\tools\cythonize.py", line 81, in process_pyx
    raise Exception('Cython failed')
Exception: Cython failed
Traceback (most recent call last):
  File "setup.py", line 391, in <module>
    setup_package()
  File "setup.py", line 374, in setup_package
    generate_cython()
  File "setup.py", line 212, in generate_cython
    raise RuntimeError("Running cythonize failed!")
RuntimeError: Running cythonize failed!

需要帮助。

Answer 1

可能是网络原因，你可以再试一次。 （它对我有用）

Answer 2

pip 的错误表明您有 pip 连接问题。我认为您在尝试运行 pip install 时没有正确设置代理。请查看this question。您可以尝试 pip 的 --proxy 选项。否则，我不建议对 numpy 进行任何手动安装。

Answer 3

您可以随时下载Numpy 安装程序