micromamba list and micromamba env export does not list packages installed by uv #4013
Description
Troubleshooting docs
- My problem is not solved in the Troubleshooting docs
Anaconda default channels
- I do NOT use the Anaconda default channels (pkgs/* etc.)
How did you install Mamba?
Micromamba
Search tried in issue tracker
Searched all issues (opened/closed) mentioning uv
Latest version of Mamba
- My problem is not solved with the latest version
Tried in Conda?
Not applicable
Describe your issue
Creating an environment with micromamba and uv is fast and convenient. However, when I export this environment to lock the dependencies, the environment.yml file does not contain any of the dependencies installed by uv. micromamba list also does not list packages installed from pypi, and I must use uv pip list instead. This behavior does not happen when using pip.
mamba info / micromamba info
libmamba version : 2.3.0
micromamba version : 2.3.0
curl version : libcurl/8.14.1 OpenSSL/3.5.0 zlib/1.3.1 zstd/1.5.7 libssh2/1.11.1 nghttp2/1.64.0
libarchive version : libarchive 3.8.1 zlib/1.3.1 bz2lib/1.0.8 libzstd/1.5.7 libb2/bundled
envs directories : /home/simadala/micromamba/envs
package cache : /home/simadala/micromamba/pkgs
/home/simadala/.mamba/pkgs
environment : test_env_uv (active)
env location : /home/simadala/micromamba/envs/cos_env_updated
user config files : /home/simadala/.mambarc
populated config files : /home/simadala/.condarc
virtual packages : __unix=0=0
__linux=5.14.0=0
__glibc=2.34=0
__archspec=1=x86_64_v4
channels : https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
https://conda.anaconda.org/nodefaults/linux-64
https://conda.anaconda.org/nodefaults/noarch
base environment : /home/simadala/micromamba
platform : linux-64Logs
environment.yml
name: uv_test_env
channels:
- conda-forge
dependencies:
- python
- uv
- pip:
- torchexported environment.yml
name: uv_test_env
channels:
- conda-forge
dependencies:
- _libgcc_mutex=0.1=conda_forge
- _openmp_mutex=4.5=2_gnu
- bzip2=1.0.8=h4bc722e_7
- ca-certificates=2025.7.14=hbd8a1cb_0
- icu=75.1=he02047a_0
- ld_impl_linux-64=2.44=h1423503_1
- libexpat=2.7.0=h5888daf_0
- libffi=3.4.6=h2dba641_1
- libgcc=15.1.0=h767d61c_3
- libgcc-ng=15.1.0=h69a702a_3
- libgomp=15.1.0=h767d61c_3
- liblzma=5.8.1=hb9d3cd8_2
- libmpdec=4.0.0=hb9d3cd8_0
- libsqlite=3.50.2=hee844dc_2
- libstdcxx=15.1.0=h8f9b012_3
- libstdcxx-ng=15.1.0=h4852527_3
- libuuid=2.38.1=h0b41bf4_0
- libzlib=1.3.1=hb9d3cd8_2
- ncurses=6.5=h2d0b736_3
- openssl=3.5.1=h7b32b05_0
- pip=25.1.1=pyh145f28c_0
- python=3.13.5=hec9711d_102_cp313
- python_abi=3.13=7_cp313
- readline=8.2=h8c095d6_2
- tk=8.6.13=noxft_hd72426e_102
- tzdata=2025b=h78e105d_0
- uv=0.7.21=heb9285d_0~/.condarc
channels:
- conda-forge
- defaults
- nodefaults
auto_activate_base: false
channel_priority: strict
use_uv: true