Traceback (most recent call last): File “D:/程序库/python_crawler/crawler/crawler02.py“, line 9, in ＜

博主在尝试爬虫时遇到bs4库导入错误，由于soupsieve.util.py文件中的语法错误导致程序无法运行。通过检查发现是由于电脑中存在多个Python版本。解决方法是安装lxml库，但在安装过程中又因Python版本不一致引发错误。最终，博主将Python版本切换为3.8，成功解决问题。

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这是我学那个爬虫报的一个错，打死都找不到问题，后来解决了

Traceback (most recent call last):
File "D:/程序库/python_crawler/crawler/crawler02.py", line 9, in <module>
    import bs4
File "D:\Install\Python 3.5\lib\site-packages\bs4\__init__.py", line 38, in <module>
    from .builder import builder_registry, ParserRejectedMarkup
File "D:\Install\Python 3.5\lib\site-packages\bs4\builder\__init__.py", line 7, in <module>
    from bs4.element import (
File "D:\Install\Python 3.5\lib\site-packages\bs4\element.py", line 12, in <module>
    import soupsieve
File "D:\Install\Python 3.5\lib\site-packages\soupsieve\__init__.py", line 29, in <module>
    from . import css_parser as cp
File "D:\Install\Python 3.5\lib\site-packages\soupsieve\css_parser.py", line 4, in <module>
    from . import util
File "D:\Install\Python 3.5\lib\site-packages\soupsieve\util.py", line 59
    f"'{func.__name__}' is deprecated. {message}",
                                                ^
SyntaxError: invalid syntax

Process finished with exit code 1

得装lxml这个库，装库不用我教了吧，直接pip或者pycharm装

但是装这个库我又出现了问题

Traceback (most recent call last):
File "D:\Install\PyCharm 2020.1\plugins\python\helpers\packaging_tool.py", line 131, in main
    do_install(pkgs)
File "D:\Install\PyCharm 2020.1\plugins\python\helpers\packaging_tool.py", line 59, in do_install
    run_pip(['install'] + pkgs)
File "D:\Install\PyCharm 2020.1\plugins\python\helpers\packaging_tool.py", line 73, in run_pip
    runpy.run_module(module_name, run_name='__main__', alter_sys=True)
File "D:\Install\Python 3.5\lib\runpy.py", line 182, in run_module
    return _run_module_code(code, init_globals, run_name, mod_spec)
File "D:\Install\Python 3.5\lib\runpy.py", line 96, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
File "D:\Install\Python 3.5\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
File "D:\Install\Python 3.5\lib\site-packages\pip\__main__.py", line 29, in <module>
    from pip._internal.cli.main import main as _main
File "D:\Install\Python 3.5\lib\site-packages\pip\_internal\cli\main.py", line 57
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax