python使用pip安装lightgbm报错解决

pip安装默认版本是最新的版本太高了，需要降低版本：pip install "lightgbm==2.3.1"

ubuntu下报错信息：

Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Collecting lightgbm
  Downloading http://mirrors.aliyun.com/pypi/packages/7a/6d/db0f5effd3f7982632111f37fcd2fa386b8407f1ff58ef30b71d65e1a444/lightgbm-3.2.1.tar.gz (1.5MB)
     |████████████████████████████████| 1.5MB 232kB/s 

ERROR: Command errored out with exit status 1:
     command: /home/yinchen/anaconda3/envs/python27new/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-wNQXHB/lightgbm/setup.py'"'"'; __file__='"'"'/tmp/pip-install-wNQXHB/lightgbm/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-wNQXHB/lightgbm/pip-egg-info
         cwd: /tmp/pip-install-wNQXHB/lightgbm/
    Complete output (6 lines):
    Traceback (most recent call last):
      File "", line 1, in
      File "/tmp/pip-install-wNQXHB/lightgbm/setup.py", line 43
        logger.info(f"Installing lib_lightgbm from: {LIB_PATH}")
                                                              ^
    SyntaxError: invalid syntax
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
 

window下报错信息：

    ERROR: Command errored out with exit status 1:
     command: 'c:users72666appdatalocalcontinuumanaconda3envspython27newpython.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'c:\users\72666\appdata\local\temp\pip-install-ohrfhv\lightgbm\setup.py'"'"'; __file__='"'"'c:\users\72666\appdata\local\temp\pip-install-ohrfhv\lightgbm\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'c:users72666appdatalocaltemppip-pip-egg-info-oilnu4'
         cwd: c:users72666appdatalocaltemppip-install-ohrfhvlightgbm
    Complete output (6 lines):
    Traceback (most recent call last):
      File "", line 1, in
      File "c:users72666appdatalocaltemppip-install-ohrfhvlightgbmsetup.py", line 38
        def find_lib() -> List[str]:
                       ^
    SyntaxError: invalid syntax
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

感谢：lightgbm 安装报错解决_wangwangstone的博客-CSDN博客