在termux上安装心理学2-二进制文件失败/出错

Question

u0_a439@localhost: /data/data/com.termux/files/home/storage/shared/z_termux
➜   pip3 install psycopg2-binary

我想在上安装内核文件2-二进制文件，但是我遇到了这样的错误.

使用缓存的psycopg2 2-二进制-2.9.3.tar.gz (380 kB)收集内核2-二进制文件

准备元数据(setup.py) ..。错误

错误:子进程-退出-有错误

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [23 lines of output]
      running egg_info
      creating /data/data/com.termux/files/usr/tmp/pip-pip-egg-info-ayuu7y_q/psycopg2_binary.egg-info
      writing /data/data/com.termux/files/usr/tmp/pip-pip-egg-info-ayuu7y_q/psycopg2_binary.egg-info/PKG-INFO
      writing dependency_links to /data/data/com.termux/files/usr/tmp/pip-pip-egg-info-ayuu7y_q/psycopg2_binary.egg-info/dependency_links.txt
      writing top-level names to /data/data/com.termux/files/usr/tmp/pip-pip-egg-info-ayuu7y_q/psycopg2_binary.egg-info/top_level.txt
      writing manifest file '/data/data/com.termux/files/usr/tmp/pip-pip-egg-info-ayuu7y_q/psycopg2_binary.egg-info/SOURCES.txt'

      Error: pg_config executable not found.

      pg_config is required to build psycopg2 from source.  Please add the directory
      containing pg_config to the $PATH or specify the full executable path with the
      option:

          python setup.py build_ext --pg-config /path/to/pg_config build ...

      or with the pg_config option in 'setup.cfg'.

      If you prefer to avoid building psycopg2 from source, please install the PyPI
      'psycopg2-binary' package instead.

      For further information please check the 'doc/src/install.rst' file (also at
      <https://www.psycopg.org/docs/install.html>).

      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.                                 /2.4s

u0_a439@localhost: /data/data/com.termux/files/home/storage/shared/z_termux
➜

如果有人帮我解决这个问题，我很感激

Answer 1

我认为psycopg2-binary包是预先构建的，假设它将运行在使用glibc实现作为标准C库的Linux系统上。Termux运行在不使用glibc的Android上。因此，我认为发生的事情是，pip理解这一点，并返回到从源代码构建内核，在这种情况下，构建依赖应该在安装之前。

尝试安装构建依赖项：

apt-get install libpq-dev gcc python3-dev musl-dev

请参阅https://github.com/psycopg/psycopg2/issues/684

对相同问题的web搜索表明，对于其他不使用glibc的Linux系统也是如此，比如Alpine。