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python3 -m pip install langflow 错误 #1543

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huangbz2007 opened this issue Mar 19, 2024 · 3 comments
Closed

python3 -m pip install langflow 错误 #1543

huangbz2007 opened this issue Mar 19, 2024 · 3 comments
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@huangbz2007
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1、执行:python3 -m pip install langflow
2、错误:

                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/private/var/folders/04/z7hgr2751h7dmx90tt_1m7wh0000gn/T/pip-build-env-7p364puo/overlay/lib/python3.12/site-packages/setuptools/config/setupcfg.py", line 418, in _parse_attr
      return expand.read_attr(attr_desc, package_dir, root_dir)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/private/var/folders/04/z7hgr2751h7dmx90tt_1m7wh0000gn/T/pip-build-env-7p364puo/overlay/lib/python3.12/site-packages/setuptools/config/expand.py", line 195, in read_attr
      module = _load_spec(spec, module_name)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/private/var/folders/04/z7hgr2751h7dmx90tt_1m7wh0000gn/T/pip-build-env-7p364puo/overlay/lib/python3.12/site-packages/setuptools/config/expand.py", line 215, in _load_spec
      spec.loader.exec_module(module)  # type: ignore
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "<frozen importlib._bootstrap_external>", line 994, in exec_module
    File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
    File "/private/var/folders/04/z7hgr2751h7dmx90tt_1m7wh0000gn/T/pip-install-llxpj2g_/wrapt_58056b4a6f5f49c7a0ddbc7563e4ea37/src/wrapt/__init__.py", line 10, in <module>
      from .decorators import (adapter_factory, AdapterFactory, decorator,
    File "/private/var/folders/04/z7hgr2751h7dmx90tt_1m7wh0000gn/T/pip-install-llxpj2g_/wrapt_58056b4a6f5f49c7a0ddbc7563e4ea37/src/wrapt/decorators.py", line 34, in <module>
      from inspect import ismethod, isclass, formatargspec
  ImportError: cannot import name 'formatargspec' from 'inspect' (/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/inspect.py). Did you mean: 'formatargvalues'?
  [end of output]
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dosubot bot commented Mar 19, 2024

嘿,@huangbz2007!又见面啦,希望一切都好!

根据您提供的错误信息,问题出在 wrapt 这个库中,它试图从 inspect 模块中导入 formatargspec,但在 Python 3.9 及更高版本中,formatargspec 已被移除。这个函数在 Python 3.5 中就已经被弃用,最终在 Python 3.9 中被移除。如果您的代码或者您正在使用的库依赖 formatargspec,那么在 Python 3.9 或更高版本中运行时,您会遇到这个错误。

要解决这个问题,您有以下几个选项:

  1. 降级 Python 版本:使用旧版本的 Python(3.8 或以下),在这些版本中 formatargspec 仍然可用。这是一个快速的解决方案,但不是长期的解决方案,特别是如果您想利用 Python 的新特性和改进。

  2. 更新受影响的库:如果错误来自第三方库(如您的情况中的 langflow),检查是否有更新的库版本已经通过替换 formatargspec 为其推荐的替代方案 inspect.signature 或其他解决方案来修复这个问题。更新库到新版本可能会解决问题。

  3. 修改代码:如果您可以控制代码,或者如果问题出在一个小的、不活跃的库中,您可以修改代码,将 formatargspec 的使用替换为 inspect.signatureinspect 模块中的其他适当方法。这需要对原始代码的功能有一些理解,以及如何用新的 API 实现相同的功能。

由于提供的上下文中没有直接引用 formatargspec,问题可能出在 langflow 的一个依赖项中,或者不太可能出在未显示的代码部分。如果 langflow 是您自己的项目,或者如果您可以修改其依赖项,请按照上述步骤操作。如果它是一个第三方库,联系维护者或检查项目的仓库以获取问题和更新也可能有帮助。

另外,我在 langflow 的仓库中找到了一些类似的问题,可能对您有所帮助。这些问题中提供了一些可能的解决方案,例如使用虚拟环境,或者尝试安装 langflow[local]。您可以参考这些讨论和问题,看看是否有能解决您问题的方案。

参考链接:

希望这些信息对您有所帮助。如果您有任何其他问题或需要进一步的帮助,请随时告诉我。

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@dosubot dosubot bot added the bug Something isn't working label Mar 19, 2024
@ogabrielluiz
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Hi @huangbz2007

It seems you are using Python 3.12, that could be the reason you can't install Langflow.

@jerichoBob
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moving from python 3.12 to python 3.11.9 made the difference for me. thanks @ogabrielluiz.

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