python setup.py egg_info没有成功运行。当$ pip安装mariadb时

Question

我试图在我的ubuntu 20.04上安装mariadb软件包，并得到以下消息：

Collecting mariadb


Using cached mariadb-1.1.3.tar.gz (80 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [19 lines of output]
      /bin/sh: 1: mariadb_config: not found
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/tmp/pip-install-t71j4ld7/mariadb_85318304dde74615894ef8d77544330a/setup.py", line 26, in <module>
          cfg = get_config(options)
        File "/tmp/pip-install-t71j4ld7/mariadb_85318304dde74615894ef8d77544330a/mariadb_posix.py", line 63, in get_config
          cc_version = mariadb_config(config_prg, "cc_version")
        File "/tmp/pip-install-t71j4ld7/mariadb_85318304dde74615894ef8d77544330a/mariadb_posix.py", line 28, in mariadb_config
          raise EnvironmentError(
      OSError: mariadb_config not found.
      
      This error typically indicates that MariaDB Connector/C, a dependency which must be preinstalled,
      is not found.
      If MariaDB Connector/C is not installed, see installation instructions
      at: https://github.com/mariadb-corporation/mariadb-connector-c/wiki/install.md.
      If MariaDB Connector/C is installed, either set the environment variable MARIADB_CONFIG or edit
      the configuration file 'site.cfg' to set the 'mariadb_config' option to the file location of the
      mariadb_config utility.
      [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.

我找到了许多关于这个主题的主题和答案，比如更新和升级系统，升级我的pip版本，或者安装像libmariadbclient、setuptools或libmysqlclient之类的软件包。

我也在我的系统上安装了libmariadb，但是这些解决方案都不适合我。

python3 --版本:Python3.8.10

pip -版本: pip 22.1.2

谢谢你的帮助！

Answer 1

仅仅安装libmariadb是不够的，您还需要安装libmariadb(在焦点上是libmariadb3 )，因为mariadb二进制文件不是dev包的一部分。

sudo apt-get install libmariadb3 libmariadb-dev。

另一种选择是安装服务器包，其中还包含MariaDB连接器/C。

Answer 2

可能的解决方案：升级所有其他软件包，然后安装有问题的软件包。

我在升级python包时遇到了类似的错误：

pip3 freeze --local | egrep -v '^\-e|@' | cut -d = -f 1  | xargs pip install --user -U --no-deps

但是有几个软件包不会安装并抛出错误：

python setup.py egg_info did not run successfully.

因此，我将这些包排除在升级之外：

pip3 freeze --local | egrep -v '^\-e|@' | cut -d = -f 1 | grep -v atomicwrites | grep -v drep | grep -v gffutils | grep -v hapROH | grep -v pyfaidx | grep -v pygtrie | grep -v python-igraph | grep -v pytools | grep -v rpy2 | grep -v vamb | xargs pip install --user -U --no-deps

在之后，升级了所有可升级的软件包，我可以安装问题子程序：

echo -e "atomicwrites\ndrep\ngffutils\nhapROH\npyfaidx\npygtrie\npython-igraph\npytools\nrpy2\nvamb"| xargs pip3 install --user --upgrade --no-deps

Answer 3

我在安装termcolor时遇到了同样的问题。并在本站找到了解决方案。(我和那个网站没有任何关系。只是浏览了一下。)

对我来说，用

pip install --upgrade setuptools 

效果很好。问题是，我使用的是一个旧版本的setuptools，它无法安装带有最新更新的软件包。