无法更新Conda或 Python
我一直在尝试用最新版的conda和 Python来搭建一个新的conda环境。我的基础环境的Python版本是3.8.8，conda是 23.3.1，我想要Python 3.12和 conda 25.7。
我尝试了
conda create -n clean_env python=3.12
输出（下面我会粘贴）显示Python 3.12已经下载，然后又说正在下载和解压缩的软件包已完成。但当我激活环境时，仍然是在Python 3.8.8。我以为这可能是因为我的conda版本过时，当我尝试
conda install -c defaults conda=25.7.0，还是显示软件包已下载，但实际上并没有更新Conda的版本。（我会粘贴输出）
有人对如何解决有何想法？我应该使用miniconda吗？谢谢！
conda create -n clean_env python=3.12
Collecting package metadata (current_repodata.json): done
Solving environment: done
==> WARNING: A newer version of conda exists. <==
current version: 23.3.1
latest version: 25.7.0
Please update conda by running
$ conda update -n base -c defaults conda
Or to minimize the number of packages updated during conda update use
conda install conda=25.7.0
## Package Plan ##
environment location: /Users/molliepassacantando/opt/anaconda3/envs/clean_env
added / updated specs:
- python=3.12
The following packages will be downloaded:
package | build
---------------------------|-----------------
python-3.12.11 | he8d2d4c_0 14.0 MB
setuptools-78.1.1 | py312hecd8cb5_0 2.2 MB
wheel-0.45.1 | py312hecd8cb5_0 151 KB
------------------------------------------------------------
Total: 16.4 MB
The following NEW packages will be INSTALLED:
bzip2 pkgs/main/osx-64::bzip2-1.0.8-h6c40b1e_6
ca-certificates pkgs/main/osx-64::ca-certificates-2025.7.15-hecd8cb5_0
expat pkgs/main/osx-64::expat-2.7.1-h6d0c2b6_0
libcxx pkgs/main/osx-64::libcxx-19.1.7-haebbb44_3
libffi pkgs/main/osx-64::libffi-3.4.4-hecd8cb5_1
ncurses pkgs/main/osx-64::ncurses-6.5-h923df54_0
openssl pkgs/main/osx-64::openssl-3.0.17-hee2dfae_0
pip pkgs/main/noarch::pip-26.0.1-pyhc872135_0
python pkgs/main/osx-64::python-3.12.11-he8d2d4c_0
readline pkgs/main/osx-64::readline-8.3-h49f2429_0
setuptools pkgs/main/osx-64::setuptools-78.1.1-py312hecd8cb5_0
sqlite pkgs/main/osx-64::sqlite-3.50.2-hc8b0dd6_1
tk pkgs/main/osx-64::tk-8.6.15-h3a5a201_0
tzdata pkgs/main/noarch::tzdata-2026a-he532380_0
wheel pkgs/main/osx-64::wheel-0.45.1-py312hecd8cb5_0
xz pkgs/main/osx-64::xz-5.6.4-h46256e1_1
zlib pkgs/main/osx-64::zlib-1.2.13-h4b97444_1
Proceed ([y]/n)? y
Downloading and Extracting Packages
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
conda install -c defaults conda=25.7.0
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: done
==> WARNING: A newer version of conda exists. <==
current version: 23.3.1
latest version: 25.7.0
Please update conda by running
$ conda update -n base -c defaults conda
Or to minimize the number of packages updated during conda update use
conda install conda=25.7.0
## Package Plan ##
environment location: /Users/molliepassacantando/opt/anaconda3/envs/clean_env
added / updated specs:
- conda=25.7.0
The following packages will be downloaded:
package | build
---------------------------|-----------------
archspec-0.2.5 | pyhd3eb1b0_0 48 KB
boltons-25.0.0 | py312hecd8cb5_0 496 KB
brotlicffi-1.0.9.2 | py312h6d0c2b6_1 393 KB
certifi-2025.8.3 | py312hecd8cb5_0 161 KB
cffi-1.17.1 | py312h9205ec4_1 292 KB
conda-25.7.0 | py312hecd8cb5_0 1.2 MB
conda-libmamba-solver-25.4.0| pyhdf14ebd_1 39 KB
conda-package-handling-2.4.0| py312hecd8cb5_0 283 KB
conda-package-streaming-0.12.0| py312hecd8cb5_0 40 KB
cpp-expected-1.1.0 | h1962661_0 131 KB
distro-1.9.0 | py312hecd8cb5_0 37 KB
fmt-9.1.0 | ha357a0b_1 187 KB
frozendict-2.4.2 | py312hecd8cb5_0 38 KB
idna-3.7 | py312hecd8cb5_0 133 KB
jsonpatch-1.33 | py312hecd8cb5_1 37 KB
jsonpointer-3.0.0 | py312hecd8cb5_0 22 KB
libarchive-3.7.7 | h4c66a04_0 801 KB
libmamba-2.0.5 | hfd235c6_1 1.6 MB
libmambapy-2.0.5 | py312h1962661_1 645 KB
libsolv-0.7.30 | h2761308_1 442 KB
menuinst-2.3.1 | py312hecd8cb5_0 262 KB
nlohmann_json-3.11.2 | hcec6c5f_0 126 KB
packaging-25.0 | py312hecd8cb5_0 203 KB
platformdirs-4.3.7 | py312hecd8cb5_0 42 KB
pluggy-1.5.0 | py312hecd8cb5_0 47 KB
pybind11-abi-5 | hd3eb1b0_0 14 KB
pycosat-0.6.6 | py312h46256e1_2 92 KB
pysocks-1.7.1 | py312hecd8cb5_0 34 KB
reproc-14.2.4 | hcec6c5f_2 28 KB
reproc-cpp-14.2.4 | hcec6c5f_2 20 KB
requests-2.32.4 | py312hecd8cb5_0 176 KB
ruamel.yaml-0.18.10 | py312h46256e1_0 273 KB
ruamel.yaml.clib-0.2.12 | py312h46256e1_0 143 KB
simdjson-3.10.1 | h1962661_0 245 KB
spdlog-1.11.0 | ha357a0b_0 211 KB
tqdm-4.67.1 | py312h8e4b320_0 160 KB
truststore-0.10.1 | py312hecd8cb5_0 51 KB
urllib3-2.5.0 | py312hecd8cb5_0 352 KB
yaml-cpp-0.8.0 | hcec6c5f_1 487 KB
zstandard-0.23.0 | py312h5bcdf72_1 456 KB
------------------------------------------------------------
Total: 10.2 MB
The following NEW packages will be INSTALLED:
archspec pkgs/main/noarch::archspec-0.2.5-pyhd3eb1b0_0
boltons pkgs/main/osx-64::boltons-25.0.0-py312hecd8cb5_0
brotlicffi pkgs/main/osx-64::brotlicffi-1.0.9.2-py312h6d0c2b6_1
c-ares pkgs/main/osx-64::c-ares-1.19.1-h6c40b1e_0
certifi pkgs/main/osx-64::certifi-2025.8.3-py312hecd8cb5_0
cffi pkgs/main/osx-64::cffi-1.17.1-py312h9205ec4_1
charset-normalizer pkgs/main/noarch::charset-normalizer-3.3.2-pyhd3eb1b0_0
conda pkgs/main/osx-64::conda-25.7.0-py312hecd8cb5_0
conda-libmamba-so~ pkgs/main/noarch::conda-libmamba-solver-25.4.0-pyhdf14ebd_1
conda-package-han~ pkgs/main/osx-64::conda-package-handling-2.4.0-py312hecd8cb5_0
conda-package-str~ pkgs/main/osx-64::conda-package-streaming-0.12.0-py312hecd8cb5_0
cpp-expected pkgs/main/osx-64::cpp-expected-1.1.0-h1962661_0
distro pkgs/main/osx-64::distro-1.9.0-py312hecd8cb5_0
fmt pkgs/main/osx-64::fmt-9.1.0-ha357a0b_1
frozendict pkgs/main/osx-64::frozendict-2.4.2-py312hecd8cb5_0
icu pkgs/main/osx-64::icu-73.1-hcec6c5f_0
idna pkgs/main/osx-64::idna-3.7-py312hecd8cb5_0
jsonpatch pkgs/main/osx-64::jsonpatch-1.33-py312hecd8cb5_1
jsonpointer pkgs/main/osx-64::jsonpointer-3.0.0-py312hecd8cb5_0
libarchive pkgs/main/osx-64::libarchive-3.7.7-h4c66a04_0
libcurl pkgs/main/osx-64::libcurl-8.14.1-h1448931_1
libev pkgs/main/osx-64::libev-4.33-h9ed2024_1
libiconv pkgs/main/osx-64::libiconv-1.16-h6c40b1e_3
libmamba pkgs/main/osx-64::libmamba-2.0.5-hfd235c6_1
libmambapy pkgs/main/osx-64::libmambapy-2.0.5-py312h1962661_1
libnghttp2 pkgs/main/osx-64::libnghttp2-1.57.0-h9beae6a_0
libsolv pkgs/main/osx-64::libsolv-0.7.30-h2761308_1
libssh2 pkgs/main/osx-64::libssh2-1.11.1-h3a17b82_0
libxml2 pkgs/main/osx-64::libxml2-2.13.8-h6070cd6_0
lz4-c pkgs/main/osx-64::lz4-c-1.9.4-hcec6c5f_1
menuinst pkgs/main/osx-64::menuinst-2.3.1-py312hecd8cb5_0
nlohmann_json pkgs/main/osx-64::nlohmann_json-3.11.2-hcec6c5f_0
packaging pkgs/main/osx-64::packaging-25.0-py312hecd8cb5_0
pcre2 pkgs/main/osx-64::pcre2-10.42-h9b97e30_1
platformdirs pkgs/main/osx-64::platformdirs-4.3.7-py312hecd8cb5_0
pluggy pkgs/main/osx-64::pluggy-1.5.0-py312hecd8cb5_0
pybind11-abi pkgs/main/noarch::pybind11-abi-5-hd3eb1b0_0
pycosat pkgs/main/osx-64::pycosat-0.6.6-py312h46256e1_2
pycparser pkgs/main/noarch::pycparser-2.21-pyhd3eb1b0_0
pysocks pkgs/main/osx-64::pysocks-1.7.1-py312hecd8cb5_0
reproc pkgs/main/osx-64::reproc-14.2.4-hcec6c5f_2
reproc-cpp pkgs/main/osx-64::reproc-cpp-14.2.4-hcec6c5f_2
requests pkgs/main/osx-64::requests-2.32.4-py312hecd8cb5_0
ruamel.yaml pkgs/main/osx-64::ruamel.yaml-0.18.10-py312h46256e1_0
ruamel.yaml.clib pkgs/main/osx-64::ruamel.yaml.clib-0.2.12-py312h46256e1_0
simdjson pkgs/main/osx-64::simdjson-3.10.1-h1962661_0
spdlog pkgs/main/osx-64::spdlog-1.11.0-ha357a0b_0
tqdm pkgs/main/osx-64::tqdm-4.67.1-py312h8e4b320_0
truststore pkgs/main/osx-64::truststore-0.10.1-py312hecd8cb5_0
urllib3 pkgs/main/osx-64::urllib3-2.5.0-py312hecd8cb5_0
yaml-cpp pkgs/main/osx-64::yaml-cpp-0.8.0-hcec6c5f_1
zstandard pkgs/main/osx-64::zstandard-0.23.0-py312h5bcdf72_1
zstd pkgs/main/osx-64::zstd-1.5.6-h138b38a_0
Proceed ([y]/n)? y
Downloading and Extracting Packages
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
解决方案
Your clean_env was created correctly with Python 3.12. The package plan shows python-3.12.11 being installed into that environment, and your later which python output confirms the env’s Python is being used now. The original Python issue was just that the shell hadn’t been initialized for Conda yet, so conda init fixed activation.
The Conda version is a different issue: you ran conda install conda=25.7.0 while clean_env was active, so that installed Conda into clean_env, not into the base installation that provides the conda command you normally run. Conda’s docs recommend updating Conda in the base environment:
conda activate base
conda update conda
or:
conda update -n base -c defaults conda
Then check:
which conda
conda --version
If which conda still points somewhere unexpected, that would mean you still have a PATH/shell init issue rather than a package install problem.
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