pip安装pymoo失败，报ModuleNotFoundError错误求解决方案

算力阿峰

2026-6-19

问题描述

执行pip install -U pymoo安装pymoo失败，已更新pip但问题未解决，C:\Program Files\Spyder\Python\Scripts已添加到系统PATH。报错信息如下：

C:\Program Files\Spyder\Python\Scripts>pip install -U pymoo
Collecting pymoo
  Using cached pymoo-0.6.1.2.tar.gz (1.3 MB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [6 lines of output]
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "C:\Users\AvdKAdmin\AppData\Local\Temp\pip-install-7pe_9kfn\pymoo_b3604a5d5c0444c584d6f0acf707f036\setup.py", line 11, in <module>
          from pymoo.version import __version__
      ModuleNotFoundError: No module named 'pymoo'
      [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.

C:\Program Files\Spyder\Python\Scripts>

已安装包列表：

C:\Program Files\Spyder\Python\Scripts>pip list
Package                       Version
----------------------------- --------------
alabaster                     0.7.13
arrow                         1.3.0
astroid                       3.2.2
asttokens                     2.4.1
atomicwrites                  1.4.1
attrs                         23.2.0
autopep8                      2.0.4
Babel                         2.15.0
backcall                      0.2.0
backports.tarfile             1.2.0
beautifulsoup4                4.12.3
binaryornot                   0.4.4
black                         24.4.2
bleach                        6.1.0
blinker                       1.8.2
certifi                       2024.6.2
cffi                          1.16.0
chardet                       5.2.0
charset-normalizer            3.3.2
click                         8.1.7
cloudpickle                   3.0.0
colorama                      0.4.6
comm                          0.2.2
contourpy                     1.1.1
cookiecutter                  2.6.0
cryptography                  42.0.8
cycler                        0.12.1
Cython                        3.0.10
debugpy                       1.8.1
decorator                     5.1.1
defusedxml                    0.7.1
diff-match-patch              20230430
dill                          0.3.8
docstring-to-markdown         0.15
docutils                      0.20.1
et-xmlfile                    1.1.0
executing                     2.0.1
ez_setup                      0.9
fastjsonschema                2.19.1
flake8                        7.0.0
Flask                         3.0.3
Flask-MySQLdb                 2.0.0
fonttools                     4.53.0
idna                          3.7
imagesize                     1.4.1
importlib_metadata            7.1.0
importlib_resources           6.4.0
inflection                    0.5.1
intervaltree                  3.1.0
ipykernel                     6.29.4
ipython                       8.12.3
isort                         5.13.2
itsdangerous                  2.2.0
jaraco.classes                3.4.0
jaraco.context                5.3.0
jaraco.functools              4.0.1
jedi                          0.19.1
jellyfish                     1.0.4
Jinja2                        3.1.4
jsonschema                    4.22.0
jsonschema-specifications     2023.12.1
jupyter_client                8.6.2
jupyter_core                  5.7.2
jupyterlab_pygments           0.3.0
keyring                       25.2.1
kiwisolver                    1.4.5
markdown-it-py                3.0.0
MarkupSafe                    2.1.5
matplotlib                    3.7.5
matplotlib-inline             0.1.7
mccabe                        0.7.0
mdurl                         0.1.2
mistune                       3.0.2
more-itertools                10.3.0
mpmath                        1.3.0
mypy-extensions               1.0.0
mysqlclient                   2.2.4
nbclient                      0.10.0
nbconvert                     7.16.4
nbformat                      5.10.4
nest-asyncio                  1.6.0
networkx                      3.1
numpy                         1.24.4
numpydoc                      1.7.0
openpyxl                      3.1.3
packaging                     24.1
pandas                        2.0.3
pandocfilters                 1.5.1
paramiko                      3.4.0
parso                         0.8.4
pathspec                      0.12.1
pexpect                       4.9.0
pickleshare                   0.7.5
pillow                        10.3.0
pip                           24.2
pkgutil_resolve_name          1.3.10
platformdirs                  4.2.2
pluggy                        1.5.0
prompt_toolkit                3.0.47
psutil                        6.0.0
ptyprocess                    0.7.0
pure-eval                     0.2.2
pycodestyle                   2.11.1
pycparser                     2.22
pydocstyle                    6.3.0
pyflakes                      3.2.0
Pygments                      2.18.0
pylint                        3.2.3
pylint-venv                   3.0.3
pyls-spyder                   0.4.0
pyparsing                     3.1.2
PyQt5                         5.15.10
PyQt5-Qt5                     5.15.2
PyQt5-sip                     12.13.0
PyQtWebEngine                 5.15.6
PyQtWebEngine-Qt5             5.15.2
python-dateutil               2.9.0.post0
python-lsp-black              2.0.0
python-lsp-jsonrpc            1.1.2
python-lsp-server             1.11.0
pytoolconfig                  1.3.1
pytz                          2024.1
pywin32                       306
pywin32-ctypes                0.2.2
pyxdg                         0.28
PyYAML                        6.0.1
pyzmq                         26.0.3
QDarkStyle                    3.2.3
qstylizer                     0.2.3
QtAwesome                     1.3.1
qtconsole                     5.5.2
QtPy                          2.4.1
referencing                   0.35.1
requests                      2.32.3
rich                          13.7.1
rope                          1.13.0
rpds-py                       0.18.1
Rtree                         1.3.0
scipy                         1.10.1
setuptools                    73.0.1
six                           1.16.0
snowballstemmer               2.2.0
sortedcontainers              2.4.0
soupsieve                     2.5
Sphinx                        7.1.2
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.2
sphinxcontrib-htmlhelp        2.0.1
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.3
sphinxcontrib-serializinghtml 1.1.5
spyder                        5.5.5
spyder-kernels                2.5.2
stack-data                    0.6.3
sympy                         1.12.1
tabulate                      0.9.0
text-unidecode                1.3
textdistance                  4.6.2
three-merge                   0.1.1
tinycss2                      1.3.0
tomli                         2.0.1
tomlkit                       0.12.5
tornado                       6.4.1
traitlets                     5.14.3
types-python-dateutil         2.9.0.20240316
typing_extensions             4.12.2
tzdata                        2024.1
ujson                         5.10.0
urllib3                       2.2.1
watchdog                      4.0.1
wcwidth                       0.2.13
webencodings                  0.5.1
Werkzeug                      3.0.3
whatthepatch                  1.0.5
wheel                         0.43.0
yapf                          0.40.2
zipp                          3.19.2

C:\Program Files\Spyder\Python\Scripts>

解决建议

这个报错是因为pymoo 0.6.1.2的源码包在生成metadata时，setup.py尝试导入未安装的pymoo模块导致的，试试以下几种方法：

方法1：安装预编译wheel包
直接指定安装wheel版本，避免从源码编译：
```
pip install pymoo --only-binary :all:
```

方法2：安装更新版本的pymoo
0.6.1.2之后的版本可能修复了setup.py的问题，尝试安装最新版：

# 安装指定修复版本
pip install pymoo==0.6.2
# 或者直接安装最新版并清除缓存
pip install pymoo --upgrade --no-cache-dir

方法3：降级setuptools
你的setuptools版本较新，可能和旧版pymoo的setup.py不兼容，试试降级到稳定版本：
```
pip install setuptools==65.5.0
pip install -U pymoo
```
方法4：手动下载并安装
1. 下载对应你Python版本的pymoo wheel包（比如适配Python 3.10的pymoo-0.6.1.2-cp310-cp310-win_amd64.whl）
2. 执行本地安装：
```
pip install 你的wheel文件路径\pymoo-wheel-file.whl
```

内容的提问来源于stack exchange，提问作者Alex van der Kooi