blocks|key|20982|text|好的，我找到了问题的解决方案，它解决了我的问题，https://github.com/pypa/pip/issues/7620#issuecomment-576655739|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|20983|让pip再次工作的一个解决方法是获得get-pip.py脚本并运行:Pythonget-pip.py+pip==19.3.1，这将使pip恢复到以前的版本。|20984|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pypa/pip/issues/7620#issuecomment-576655739|1|https://bootstrap.pypa.io/get-pip.py^0|O|1Q|0|0|I|A|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

ok i find que solution and it's fix my problem
 <a href="https://github.com/pypa/pip/issues/7620#issuecomment-576655739" rel="nofollow noreferrer">https://github.com/pypa/pip/issues/7620#issuecomment-576655739</a>

A workaround to get pip working again is getting the <a href="https://bootstrap.pypa.io/get-pip.py" rel="nofollow noreferrer">get-pip.py</a> script and running:
python get-pip.py pip==19.3.1
This will revert pip to the previous version

blocks|key|513794|text|看来这件事很管用。重新安装最新版本的备用pip：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|513795|$+curl+https://bootstrap.pypa.io/get-pip.py+-o+get-pip.py+&&+python+get-pip.py|code-block|syntax|javascript|513796|完成后，删除安装脚本：|513797|$+rm+get-pip.py|513798|entityMap|0|LINK|mutability|MUTABLE|url|https://pip.pypa.io/en/stable/installing/^0|2|6|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

It seems that <a href="https://pip.pypa.io/en/stable/installing/" rel="noreferrer">this works</a>. Reinstall the latest version of pip:

<pre class="lang-sh prettyprint-override"><code>$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py &amp;&amp; python get-pip.py
</code></pre>

When you’re done, delete the installation script:

<pre class="lang-sh prettyprint-override"><code>$ rm get-pip.py
</code></pre>

blocks|key|513804|text|这通常会发生，如果您试图重新安装pip和发行版的预打包版本与以前安装的版本不匹配(例如，在撰写本文时，19.0.3+(packaged)和20.0.2+(installed)+)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|513805|删除/path/to/site-packages/pip*目录是一个简单(但安全)的解决方案。|513806|下面是一个用于系统安装版本的bash脚本(因此需要sudo)：|513807|#!/bin/bash
set+-e

+#+Set+PY_MAJ+and+PY_MIN+with+your+own+python+"major.minor"+version
+#+Example+for+python+3.8
+#+PY_MAJ='3'
+#+PY_MIN='8'
+cd+/usr/lib/python${PY_MAJ}.${PY_MIN}/site-packages/+\
+&&+rm+-rf+pip/+\
+&&+rm+-rf+pip-*/+\
+;+cd+-|code-block|syntax|javascript|513808|虚拟环境的注释：基本上对venv有效。唯一的区别是“站点-包”目录位置。|BOLD|513809|entityMap^0|1F|H|1X|I|0|2|R|0|0|0|5|3|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|12|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|13|8|@$9|14|A|15|B|Q]]|D|@]|E|$]]|$1|R|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|S|$]]

This happens usually, if you try to reinstall pip and the distro's pre-packaged version mismatches the previously installed version (e.g. <code>19.0.3 (packaged)</code> vs <code>20.0.2 (installed)</code> at time of writing).

Removing the <code>/path/to/site-packages/pip*</code> directories is a simple (yet safe) solution.

Here's a little bash script for the system installed version (thus requires sudo):

<pre class="lang-sh prettyprint-override"><code>#!/bin/bash
set -e

 # Set PY_MAJ and PY_MIN with your own python "major.minor" version
 # Example for python 3.8
 # PY_MAJ='3'
 # PY_MIN='8'
 cd /usr/lib/python${PY_MAJ}.${PY_MIN}/site-packages/ \
 &amp;&amp; rm -rf pip/ \
 &amp;&amp; rm -rf pip-*/ \
 ; cd -
</code></pre>

Note for virtual environments:
Basically the same is valid for venv's. Only difference is the "site-packages" directory location.

blocks|key|513853|text|我不知道我是如何结束这个问题的，但我认为，以前的建议和评论结合在一起对我是有帮助的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|513854|从站点包中删除pip文件夹(对于我来说，位于C:\Users\[username]\Anaconda3\Lib\site-packages)|ordered-list-item|offset|length|style|CODE|513855|使用conda+install+pip+--force-reinstall强制使用conda重新安装|513856|希望这能对处于同样情况的其他人有所帮助。|513857|entityMap^0|0|M|1B|0|2|Z|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@$E|Q|F|R|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|S|8|@$E|T|F|U|G|H]]|9|@]|A|$]]|$1|K|3|L|5|6|7|V|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|N|$]]

I have no idea how I ended up with this issue, but a combination of previous suggestions and comments worked for me:

<ol>
<li>Remove pip folders from site-packages (for me located at <code>C:\Users\[username]\Anaconda3\Lib\site-packages</code>)</li>
<li>Force a reinstall with conda with <code>conda install pip --force-reinstall</code></li>
</ol>

Hope this may help others in the same situation.

blocks|key|1898038|text|在高山3.7上安装python3+(3.6.9)和pip3也有类似的错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1898039|在我的例子中，答案是按照python安装/升级使用：|1898040|python3+-m+ensurepip+--upgrade|code-block|syntax|javascript|1898041|升级选项将导致它卸载任何旧版本，并安装与python版本兼容的版本。|1898042|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I had a similar error installing python3 (3.6.9) and pip3 on Alpine 3.7.
In my case the answer was follow the python install/upgrade with:
<pre><code>python3 -m ensurepip --upgrade
</code></pre>
The --upgrade option will cause it to uninstall any old versions and install a version compatible with the python version

blocks|key|1898079|text|通过手动更新:用于XCode的命令行工具解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1898080|从终端运行：softwareupdate+--list，它生成一个可用更新列表。|offset|length|style|CODE|1898081|等待一个列表显示(不会花很长时间)。并查找Software+Update+found+the+following+new+or+updated+software:下的"*标签：“|1898082|应该是这样的：*+Label:+Command+Line+Tools+for+Xcode-13.0|1898083|然后只需运行：softwareupdate+-i+"Command+Line+Tools+for+Xcode-13.0"，并将括号中的文本替换为前面输出的标签。然后，这将安装python3的更新和修复。|1898084|然后运行：pip3+--version，它应该可以工作。|1898085|entityMap^0|0|6|L|0|L|1O|0|7|16|0|7|1H|0|5|E|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@$D|T|E|U|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|Y|8|@$D|Z|E|10|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|N|3|O|5|6|7|14|8|@$D|15|E|16|F|G]]|9|@]|A|$]]|$1|P|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|Q|$]]

Solved this by manually updating: Command Line Tools for XCode.
From the terminal run:
<code>softwareupdate --list</code>
which produces a list of available updates.
Wait a bit for a list to display (won't take very long). And look for the &quot;* Label:&quot; under <code>Software Update found the following new or updated software:</code>
It should say something like: <code>* Label: Command Line Tools for Xcode-13.0</code>
Then simply run: <code>softwareupdate -i &quot;Command Line Tools for Xcode-13.0&quot;</code> and replace the text in the brackets with the Label from the previous output. This will then install the updates and the fix for python3.
Then run: <code>pip3 --version</code> and it should work.

blocks|key|513939|text|只是想补充一点，在安装conda+env之外的包时，我遇到了同样的错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|513940|pip+install+thefuck+(这是一个真正的工具，我发誓)|offset|length|style|CODE|513941|它默认为旧版本的pip，因此修复程序添加了一个"3“。|513942|pip3+install+thefuck|513943|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/nvbn/thefuck^0|0|0|J|L|D|0|0|0|0|K|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|H|3|I|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]]]

Just want to add that I came across this same error when installing a package outside of a conda env
<code>pip install thefuck</code> (<a href="https://github.com/nvbn/thefuck" rel="nofollow noreferrer">it's a real tool, I swear</a>)
It was defaulting to an old version of pip so the fix was adding a &quot;3&quot;
<code>pip3 install thefuck</code>

after updating everything in conda, pip can't install anything

<pre><code>conda update -n base conda
conda update --all
</code></pre>

when install or upgrade anything, this error is show

<pre><code> $ pip install --upgrade HDF5
Traceback (most recent call last):
 File "C:\ProgramData\Anaconda3\Scripts\pip-script.py", line 10, in &lt;module&gt;
 sys.exit(main())
 File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\main.py", line 45, in main
 command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
 File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\__init__.py", line 96, in create_command
 module = importlib.import_module(module_path)
 File "C:\ProgramData\Anaconda3\lib\importlib\__init__.py", line 126, in import_module
 return _bootstrap._gcd_import(name[level:], package, level)
 File "&lt;frozen importlib._bootstrap&gt;", line 994, in _gcd_import
 File "&lt;frozen importlib._bootstrap&gt;", line 971, in _find_and_load
 File "&lt;frozen importlib._bootstrap&gt;", line 955, in _find_and_load_unlocked
 File "&lt;frozen importlib._bootstrap&gt;", line 665, in _load_unlocked
 File "&lt;frozen importlib._bootstrap_external&gt;", line 678, in exec_module
 File "&lt;frozen importlib._bootstrap&gt;", line 219, in _call_with_frames_removed
 File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 23, in &lt;module&gt;
 from pip._internal.cli.req_command import RequirementCommand
 File "C:\ProgramData\Anaconda3\lib\site-packages\pip\_internal\cli\req_command.py", line 17, in &lt;module&gt;
 from pip._internal.index import PackageFinder
ImportError: cannot import name 'PackageFinder'
</code></pre>

any help please.
thank you.

ImportError: cannot import name 'PackageFinder'

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

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在更新conda中的所有内容之后，pip无法安装任何东西conda update -n base condaconda update --all安装或升级任何内容时，将显示此错误。   $ pip install --upgrade HDF5Traceback (most recent call last):  Fil...

问ImportError:无法导入名称“PackageFinder”
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