Consider the following recipe:
schema_version: 1
package:
name: test
version: 0
requirements:
host:
- pythonAnd build.sh:
python -c 'import sysconfig; print(sysconfig.get_config_var("prefix"))'When building the 3.10/3.12 variant, it's correctly outputting:
│ ╭─ Running build script
│ │ $PREFIX
│ │
│ ╰─────────────────── (took 0 seconds)
However, for some reason the 3.11 variant gives:
│ ╭─ Running build script
│ │ /home/conda/feedstock_root/build_artifacts/python-split_1769470388965/_h_env_placehold_placehold_placehold_placehold_placehold_pla
│ │ cehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehol
│ │
│ ╰─────────────────── (took 0 seconds)
I can't reproduce this problem with conda-build or when installing python 3.11 in a regular conda env.
Hit this in the wild in conda-forge/deepspeed-feedstock#114.
Packages (from build image)
# packages in environment at /opt/conda:
#
# Name Version Build Channel
_libgcc_mutex 0.1 conda_forge conda-forge
_openmp_mutex 4.5 2_gnu conda-forge
anaconda-auth 0.12.3 pyhd8ed1ab_0 conda-forge
anaconda-cli-base 0.8.1 pyhcf101f3_0 conda-forge
anaconda-client 1.14.1 pyhcf101f3_0 conda-forge
annotated-doc 0.0.4 pyhcf101f3_0 conda-forge
annotated-types 0.7.0 pyhd8ed1ab_1 conda-forge
archspec 0.2.5 pyhd8ed1ab_0 conda-forge
attrs 25.4.0 pyhcf101f3_1 conda-forge
backports 1.0 pyhd8ed1ab_5 conda-forge
backports.tarfile 1.2.0 pyhcf101f3_2 conda-forge
backports.zstd 1.3.0 py312h90b7ffd_0 conda-forge
beautifulsoup4 4.14.3 pyha770c72_0 conda-forge
boltons 25.0.0 pyhd8ed1ab_0 conda-forge
brotli-python 1.2.0 py312hdb49522_1 conda-forge
bzip2 1.0.8 hda65f42_8 conda-forge
c-ares 1.34.6 hb03c661_0 conda-forge
ca-certificates 2026.1.4 hbd8a1cb_0 conda-forge
certifi 2026.1.4 pyhd8ed1ab_0 conda-forge
cffi 2.0.0 py312h460c074_1 conda-forge
chardet 5.2.0 pyhd8ed1ab_3 conda-forge
charset-normalizer 3.4.4 pyhd8ed1ab_0 conda-forge
click 8.3.1 pyh8f84b5b_1 conda-forge
colorama 0.4.6 pyhd8ed1ab_1 conda-forge
conda 26.1.0 py312h7900ff3_0 conda-forge
conda-build 26.1.0 pyh31ec981_2 conda-forge
conda-env 2.6.0 1 conda-forge
conda-forge-ci-setup 4.24.2 py312hef7310e_101 conda-forge
conda-forge-metadata 0.13.0 pyhcf101f3_0 conda-forge
conda-index 0.7.0 pyhd8ed1ab_0 conda-forge
conda-libmamba-solver 25.11.0 pyhd8ed1ab_1 conda-forge
conda-oci-mirror 0.2.3 pyhd8ed1ab_0 conda-forge
conda-package-handling 2.4.0 pyh7900ff3_2 conda-forge
conda-package-streaming 0.12.0 pyhd8ed1ab_0 conda-forge
cpp-expected 1.3.1 h171cf75_0 conda-forge
cryptography 46.0.5 py312ha4b625e_0 conda-forge
dbus 1.16.2 h24cb091_1 conda-forge
defusedxml 0.7.1 pyhd8ed1ab_0 conda-forge
deprecated 1.3.1 pyhd8ed1ab_1 conda-forge
distro 1.9.0 pyhd8ed1ab_1 conda-forge
evalidate 2.0.5 pyhe01879c_0 conda-forge
filelock 3.20.3 pyhd8ed1ab_0 conda-forge
fmt 12.1.0 hff5e90c_0 conda-forge
frozendict 2.4.7 py312h4c3975b_0 conda-forge
git 2.52.0 pl5321h6d3cee1_1 conda-forge
h2 4.3.0 pyhcf101f3_0 conda-forge
hpack 4.1.0 pyhd8ed1ab_0 conda-forge
hyperframe 6.1.0 pyhd8ed1ab_0 conda-forge
icu 78.2 h33c6efd_0 conda-forge
idna 3.11 pyhd8ed1ab_0 conda-forge
importlib-metadata 8.7.0 pyhe01879c_1 conda-forge
importlib_resources 6.5.2 pyhd8ed1ab_0 conda-forge
jaraco.classes 3.4.0 pyhcf101f3_3 conda-forge
jaraco.context 6.1.0 pyhcf101f3_0 conda-forge
jaraco.functools 4.4.0 pyhcf101f3_1 conda-forge
jeepney 0.9.0 pyhd8ed1ab_0 conda-forge
jinja2 3.1.6 pyhcf101f3_1 conda-forge
joblib 1.5.3 pyhd8ed1ab_0 conda-forge
jq 1.8.1 h73b1eb8_0 conda-forge
jsonpatch 1.33 pyhd8ed1ab_1 conda-forge
jsonpointer 3.0.0 pyhcf101f3_3 conda-forge
jsonschema 4.26.0 pyhcf101f3_0 conda-forge
jsonschema-specifications 2025.9.1 pyhcf101f3_0 conda-forge
jupyter_core 5.9.1 pyhc90fa1f_0 conda-forge
keyring 25.7.0 pyha804496_0 conda-forge
keyutils 1.6.3 hb9d3cd8_0 conda-forge
krb5 1.21.3 h659f571_0 conda-forge
lcms2 2.18 h0c24ade_0 conda-forge
ld_impl_linux-64 2.45.1 default_hbd61a6d_101 conda-forge
lerc 4.0.0 h0aef613_1 conda-forge
libarchive 3.8.5 gpl_hc2c16d8_100 conda-forge
libcurl 8.18.0 h4e3cde8_0 conda-forge
libdeflate 1.25 h17f619e_0 conda-forge
libedit 3.1.20250104 pl5321h7949ede_0 conda-forge
libev 4.33 hd590300_2 conda-forge
libexpat 2.7.3 hecca717_0 conda-forge
libffi 3.5.2 h3435931_0 conda-forge
libfreetype 2.14.1 ha770c72_0 conda-forge
libfreetype6 2.14.1 h73754d4_0 conda-forge
libgcc 15.2.0 he0feb66_17 conda-forge
libgcc-ng 15.2.0 h69a702a_17 conda-forge
libglib 2.86.3 h6548e54_0 conda-forge
libgomp 15.2.0 he0feb66_17 conda-forge
libiconv 1.18 h3b78370_2 conda-forge
libjpeg-turbo 3.1.2 hb03c661_0 conda-forge
liblief 0.17.1 hecca717_0 conda-forge
liblzma 5.8.2 hb03c661_0 conda-forge
liblzma-devel 5.8.2 hb03c661_0 conda-forge
libmamba 2.5.0 hd28c85e_0 conda-forge
libmamba-spdlog 2.5.0 h12fcf84_0 conda-forge
libmambapy 2.5.0 py312h1ca65c7_0 conda-forge
libnghttp2 1.67.0 had1ee68_0 conda-forge
libnsl 2.0.1 hb9d3cd8_1 conda-forge
libpng 1.6.55 h421ea60_0 conda-forge
libsolv 0.7.35 h9463b59_0 conda-forge
libsqlite 3.51.2 hf4e2dac_0 conda-forge
libssh2 1.11.1 hcf80075_0 conda-forge
libstdcxx 15.2.0 h934c35e_17 conda-forge
libstdcxx-ng 15.2.0 hdf11a46_17 conda-forge
libtiff 4.7.1 h9d88235_1 conda-forge
libuuid 2.41.3 h5347b49_0 conda-forge
libwebp-base 1.6.0 hd42ef1d_0 conda-forge
libxcb 1.17.0 h8a09558_0 conda-forge
libxcrypt 4.4.36 hd590300_1 conda-forge
libxml2 2.15.1 he237659_1 conda-forge
libxml2-16 2.15.1 hca6bf5a_1 conda-forge
libzlib 1.3.1 hb9d3cd8_2 conda-forge
lz4-c 1.10.0 h5888daf_1 conda-forge
lzo 2.10 h280c20c_1002 conda-forge
mamba 2.5.0 h9835478_0 conda-forge
markdown-it-py 4.0.0 pyhd8ed1ab_0 conda-forge
markupsafe 3.0.3 py312h8a5da7c_0 conda-forge
mbedtls 3.6.3.1 h5888daf_0 conda-forge
mdurl 0.1.2 pyhd8ed1ab_1 conda-forge
menuinst 2.4.2 py312h7900ff3_0 conda-forge
more-itertools 10.8.0 pyhcf101f3_1 conda-forge
msgpack-python 1.1.2 py312hd9148b4_1 conda-forge
nbformat 5.10.4 pyhd8ed1ab_1 conda-forge
ncurses 6.5 h2d0b736_3 conda-forge
nlohmann_json-abi 3.12.0 h0f90c79_1 conda-forge
oniguruma 6.9.10 hb9d3cd8_0 conda-forge
openjpeg 2.5.4 h55fea9a_0 conda-forge
openssl 3.6.1 h35e630c_1 conda-forge
oras-py 0.1.14 pyhd8ed1ab_0 conda-forge
packaging 26.0 pyhcf101f3_0 conda-forge
patch 2.8 hb03c661_1002 conda-forge
patchelf 0.17.2 h58526e2_0 conda-forge
pcre2 10.47 haa7fec5_0 conda-forge
perl 5.32.1 7_hd590300_perl5 conda-forge
pillow 12.1.1 py312h50c33e8_0 conda-forge
pip 26.0.1 pyh8b19718_0 conda-forge
pixi 0.63.2 ha759004_0 conda-forge
pkce 1.0.3 pyhd8ed1ab_1 conda-forge
pkginfo 1.12.1.2 pyhd8ed1ab_0 conda-forge
platformdirs 4.5.1 pyhcf101f3_0 conda-forge
pluggy 1.6.0 pyhf9edf01_1 conda-forge
psutil 7.2.2 py312h5253ce2_0 conda-forge
pthread-stubs 0.4 hb9d3cd8_1002 conda-forge
py-lief 0.17.1 py312h1289d80_0 conda-forge
pybind11-abi 11 hc364b38_1 conda-forge
pycosat 0.6.6 py312h4c3975b_3 conda-forge
pycparser 2.22 pyh29332c3_1 conda-forge
pydantic 2.12.5 pyhcf101f3_1 conda-forge
pydantic-core 2.41.5 py312h868fb18_1 conda-forge
pydantic-settings 2.12.0 pyh3cfb1c2_0 conda-forge
pygments 2.19.2 pyhd8ed1ab_0 conda-forge
pyjwt 2.11.0 pyhd8ed1ab_0 conda-forge
pysocks 1.7.1 pyha55dd90_7 conda-forge
python 3.12.12 hd63d673_2_cpython conda-forge
python-dateutil 2.9.0.post0 pyhe01879c_2 conda-forge
python-dotenv 1.2.1 pyhcf101f3_0 conda-forge
python-fastjsonschema 2.21.2 pyhe01879c_0 conda-forge
python-libarchive-c 5.3 pyhe01879c_1 conda-forge
python_abi 3.12 8_cp312 conda-forge
pytz 2025.2 pyhd8ed1ab_0 conda-forge
pyyaml 6.0.3 py312h8a5da7c_1 conda-forge
rattler-build 0.57.2 he64ecbb_1 conda-forge
rattler-build-conda-compat 1.4.11 pyhd8ed1ab_0 conda-forge
readchar 4.2.1 pyhe01879c_0 conda-forge
readline 8.3 h853b02a_0 conda-forge
referencing 0.37.0 pyhcf101f3_0 conda-forge
reproc 14.2.5.post0 hb9d3cd8_0 conda-forge
reproc-cpp 14.2.5.post0 h5888daf_0 conda-forge
requests 2.32.5 pyhcf101f3_1 conda-forge
requests-toolbelt 1.0.0 pyhd8ed1ab_1 conda-forge
rich 14.3.2 pyhcf101f3_0 conda-forge
ripgrep 15.1.0 hdab8a38_0 conda-forge
rpds-py 0.30.0 py312h868fb18_0 conda-forge
ruamel.yaml 0.18.17 py312h5253ce2_2 conda-forge
ruamel.yaml.clib 0.2.15 py312h5253ce2_1 conda-forge
secretstorage 3.4.1 py312h7900ff3_0 conda-forge
semver 3.0.4 pyhcf101f3_1 conda-forge
setuptools 82.0.0 pyh332efcf_0 conda-forge
shellingham 1.5.4 pyhd8ed1ab_2 conda-forge
shyaml 0.6.2 pyhd3deb0d_0 conda-forge
simdjson 4.2.4 hb700be7_0 conda-forge
six 1.17.0 pyhe01879c_1 conda-forge
soupsieve 2.8.3 pyhd8ed1ab_0 conda-forge
spdlog 1.17.0 hab81395_1 conda-forge
su-exec 0.2 h166bdaf_1003 conda-forge
tini 0.19.0 h166bdaf_1 conda-forge
tk 8.6.13 noxft_h366c992_103 conda-forge
tomli 2.4.0 pyhcf101f3_0 conda-forge
tomlkit 0.14.0 pyha770c72_0 conda-forge
tqdm 4.67.3 pyh8f84b5b_0 conda-forge
traitlets 5.14.3 pyhd8ed1ab_1 conda-forge
truststore 0.10.4 pyhcf101f3_0 conda-forge
typer 0.21.2 pyhf0a747c_0 conda-forge
typer-slim 0.21.2 pyhcf101f3_0 conda-forge
typer-slim-standard 0.21.2 h0939d6c_0 conda-forge
typing-extensions 4.15.0 h396c80c_0 conda-forge
typing-inspection 0.4.2 pyhd8ed1ab_1 conda-forge
typing_extensions 4.15.0 pyhcf101f3_0 conda-forge
tzdata 2025c hc9c84f9_1 conda-forge
urllib3 2.6.3 pyhd8ed1ab_0 conda-forge
wheel 0.46.3 pyhd8ed1ab_0 conda-forge
wrapt 2.1.1 py312h4c3975b_0 conda-forge
xorg-libxau 1.0.12 hb03c661_1 conda-forge
xorg-libxdmcp 1.1.5 hb03c661_1 conda-forge
xz 5.8.2 ha02ee65_0 conda-forge
xz-gpl-tools 5.8.2 ha02ee65_0 conda-forge
xz-tools 5.8.2 hb03c661_0 conda-forge
yaml 0.2.5 h280c20c_3 conda-forge
yaml-cpp 0.8.0 h59595ed_0 conda-forge
zipp 3.23.0 pyhcf101f3_1 conda-forge
zlib-ng 2.3.3 hceb46e0_1 conda-forge
zstandard 0.25.0 py312h5253ce2_1 conda-forge
zstd 1.5.7 hb78ec9c_6 conda-forge
Consider the following recipe:
And
build.sh:python -c 'import sysconfig; print(sysconfig.get_config_var("prefix"))'When building the 3.10/3.12 variant, it's correctly outputting:
However, for some reason the 3.11 variant gives:
I can't reproduce this problem with conda-build or when installing python 3.11 in a regular conda env.
Hit this in the wild in conda-forge/deepspeed-feedstock#114.
Packages (from build image)