About installation err on python 3.13 and multiprocessing problem #1520
Description
Describe the bug
- When installing version 3.13, an error occurred in a suspected .so library (resolved, only reported)
First of all, using the installation script in release (python=3.13, no problem when switching to 3.10 installation), the following first error appears. This error is from pip itself, which will cause this error to appear for any package in pip install (pip list shows only packaging=25.0, pip=25.3)
I checked the LD_LIBRARY_PATH mentioned in some related posts, and whether this .so has wrong soft links, but there are none.
The final solution is simple: change from pip to conda install expat, and then rerun setup.py
I have this error when installing on several different servers (with different .so files in the lib directory, but the user directory and conda environment are interconnected by nfs). I don't know if it's my conda problem or what, the report here is for reference only
- When extracting, the second paragraph of the log below appears, and multi-threaded CUDA fails.
The environment is created using the above script and modification process (if set python=3.10 to install, there will be no above error, but it will still cause this multiprocessing problem)
Finally, I modified scripts/extract.py line140, disabled the process logic that avoids memory leaks, and can run directly by calling else.
To Reproduce
see above
Screenshots
1.
(base) gzy@gamma-4090-48:~$ bash faceswap_setup_x64.sh
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================ Welcome to the Linux Faceswap Installer ================
INFO To get setup we need to gather some information about where you
INFO would like Faceswap and Conda to be installed.
INFO To accept the default values just hit the 'ENTER' key for each
INFO option. You will have an opportunity to review your responses prior
INFO to commencing the install.
INFO IMPORTANT: Make sure that the user 'gzy' has full
INFO permissions for all of the destinations that you select.
Press 'ENTER' to continue with the setup...
================================= CONDA =================================
INFO Faceswap uses Conda as it handles the installation of all
INFO prerequisites.
INFO Found existing conda install at: /home/gzy/miniconda3
Use the pre installed conda? [YES/no]:
INFO Using Conda install at /home/gzy/miniconda3
INFO Faceswap will be installed inside a Conda Environment. If an
INFO environment already exists with the name specified then it will
INFO be deleted.
Please specify a name for the Faceswap Conda Environment [default: 'faceswap']:
================================ FACESWAP ================================
INFO Faceswap will be installed in the given location. If a folder exists
INFO at the location you specify, then it will be deleted.
Please specify a location for Faceswap [default: '/home/gzy/faceswap']:
INFO Faceswap can be run on NVIDIA or AMD GPUs or on CPU. You should make
INFO sure that you have the latest graphics card drivers installed from
INFO the relevant vendor. Please select the version of Faceswap you wish
INFO to install.
Select: 1: NVIDIA
2: AMD (ROCm)
3: CPU
[default: 1]:
INFO Depending on your GPU a different version of Cuda may be
INFO required. Please select the generation of Nvidia GPU you use below.
Select: 1: RTX 20xx ->
2: GTX 9xx - GTX 10xx
3: GTX 7xx - GTX 9xx
[default: 1]:
========================= Review install options =========================
INFO Please review the selected installation options before proceeding:
- Existing Conda install at '/home/gzy/miniconda3' will be used
yes - Conda Environment 'faceswap' will be created.
- Existing Faceswap folder '/home/gzy/faceswap' will be removed
- Faceswap will be installed in '/home/gzy/faceswap'
- Installing for 'nvidia'
- Cuda version 13 will be used
Do you wish to continue? [yes/NO]:
INFO Creating Conda Virtual Environment...
Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done
## Package Plan ##
environment location: /home/gzy/miniconda3/envs/faceswap
added / updated specs:
- python=3.13
The following packages will be downloaded:
package | build
---------------------------|-----------------
_libgcc_mutex-0.1 | conda_forge 3 KB conda-forge
_openmp_mutex-4.5 | 2_gnu 23 KB conda-forge
bzip2-1.0.8 | hda65f42_8 254 KB conda-forge
ca-certificates-2026.1.4 | hbd8a1cb_0 143 KB conda-forge
ld_impl_linux-64-2.45 |default_hbd61a6d_105 714 KB conda-forge
libexpat-2.7.3 | hecca717_0 75 KB conda-forge
libffi-3.5.2 | h9ec8514_0 56 KB conda-forge
libgcc-15.2.0 | he0feb66_16 1018 KB conda-forge
libgomp-15.2.0 | he0feb66_16 589 KB conda-forge
liblzma-5.8.1 | hb9d3cd8_2 110 KB conda-forge
libmpdec-4.0.0 | hb9d3cd8_0 89 KB conda-forge
libsqlite-3.51.1 | h0c1763c_1 919 KB conda-forge
libuuid-2.41.3 | h5347b49_0 39 KB conda-forge
libzlib-1.3.1 | hb9d3cd8_2 60 KB conda-forge
ncurses-6.5 | h2d0b736_3 871 KB conda-forge
openssl-3.6.0 | h26f9b46_0 3.0 MB conda-forge
pip-25.3 | pyh145f28c_0 1.1 MB conda-forge
python-3.13.11 |hc97d973_100_cp313 35.5 MB conda-forge
python_abi-3.13 | 8_cp313 7 KB conda-forge
readline-8.3 | h853b02a_0 337 KB conda-forge
tk-8.6.13 |noxft_ha0e22de_103 3.1 MB conda-forge
tzdata-2025c | hc9c84f9_1 116 KB conda-forge
zstd-1.5.7 | hb78ec9c_6 587 KB conda-forge
------------------------------------------------------------
Total: 48.6 MB
The following NEW packages will be INSTALLED:
_libgcc_mutex conda-forge/linux-64::_libgcc_mutex-0.1-conda_forge
_openmp_mutex conda-forge/linux-64::_openmp_mutex-4.5-2_gnu
bzip2 conda-forge/linux-64::bzip2-1.0.8-hda65f42_8
ca-certificates conda-forge/noarch::ca-certificates-2026.1.4-hbd8a1cb_0
ld_impl_linux-64 conda-forge/linux-64::ld_impl_linux-64-2.45-default_hbd61a6d_105
libexpat conda-forge/linux-64::libexpat-2.7.3-hecca717_0
libffi conda-forge/linux-64::libffi-3.5.2-h9ec8514_0
libgcc conda-forge/linux-64::libgcc-15.2.0-he0feb66_16
libgomp conda-forge/linux-64::libgomp-15.2.0-he0feb66_16
liblzma conda-forge/linux-64::liblzma-5.8.1-hb9d3cd8_2
libmpdec conda-forge/linux-64::libmpdec-4.0.0-hb9d3cd8_0
libsqlite conda-forge/linux-64::libsqlite-3.51.1-h0c1763c_1
libuuid conda-forge/linux-64::libuuid-2.41.3-h5347b49_0
libzlib conda-forge/linux-64::libzlib-1.3.1-hb9d3cd8_2
ncurses conda-forge/linux-64::ncurses-6.5-h2d0b736_3
openssl conda-forge/linux-64::openssl-3.6.0-h26f9b46_0
pip conda-forge/noarch::pip-25.3-pyh145f28c_0
python conda-forge/linux-64::python-3.13.11-hc97d973_100_cp313
python_abi conda-forge/noarch::python_abi-3.13-8_cp313
readline conda-forge/linux-64::readline-8.3-h853b02a_0
tk conda-forge/linux-64::tk-8.6.13-noxft_ha0e22de_103
tzdata conda-forge/noarch::tzdata-2025c-hc9c84f9_1
zstd conda-forge/linux-64::zstd-1.5.7-hb78ec9c_6
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done
INFO Installing Git...
Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... unsuccessful initial attempt using frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): ...working... done
Solving environment: ...working... done
## Package Plan ##
environment location: /home/gzy/miniconda3/envs/faceswap
added / updated specs:
- git[version='<2.45']
The following packages will be downloaded:
package | build
---------------------------|-----------------
c-ares-1.34.5 | hef5626c_0 216 KB
ca-certificates-2025.12.2 | h06a4308_0 125 KB
curl-8.16.0 | he2463ab_0 173 KB
expat-2.7.3 | h3385a95_0 167 KB
gettext-0.19.8.1 | h9b4dc7a_1 2.9 MB
git-2.40.1 | pl5340h9abc3c3_4 9.9 MB
libcurl-8.16.0 | heebcbe5_0 458 KB
libgcc-15.2.0 | h69a1729_7 806 KB
libgcc-ng-15.2.0 | h166f726_7 28 KB
libgomp-15.2.0 | h4751f2c_7 436 KB
libidn2-2.3.4 | hb25bd0a_1 72 KB
libnghttp2-1.57.0 | h2d74bed_0 674 KB
libssh2-1.11.1 | h251f7ec_0 308 KB
libstdcxx-15.2.0 | h39759b7_7 3.7 MB
libstdcxx-ng-15.2.0 | hc03a8fd_7 28 KB
libunistring-1.3 | hb25bd0a_0 721 KB
libzlib-1.3.1 | hb25bd0a_0 59 KB
pcre2-10.42 | hebb0a14_1 1.3 MB
perl-5.42.0 | 0_h47b2149_perl5 16.4 MB
zlib-1.3.1 | hb25bd0a_0 96 KB
------------------------------------------------------------
Total: 38.4 MB
The following NEW packages will be INSTALLED:
c-ares pkgs/main/linux-64::c-ares-1.34.5-hef5626c_0
curl pkgs/main/linux-64::curl-8.16.0-he2463ab_0
expat pkgs/main/linux-64::expat-2.7.3-h3385a95_0
gettext pkgs/main/linux-64::gettext-0.19.8.1-h9b4dc7a_1
git pkgs/main/linux-64::git-2.40.1-pl5340h9abc3c3_4
libcurl pkgs/main/linux-64::libcurl-8.16.0-heebcbe5_0
libev pkgs/main/linux-64::libev-4.33-h7f8727e_1
libgcc-ng pkgs/main/linux-64::libgcc-ng-15.2.0-h166f726_7
libidn2 pkgs/main/linux-64::libidn2-2.3.4-hb25bd0a_1
libnghttp2 pkgs/main/linux-64::libnghttp2-1.57.0-h2d74bed_0
libssh2 pkgs/main/linux-64::libssh2-1.11.1-h251f7ec_0
libstdcxx pkgs/main/linux-64::libstdcxx-15.2.0-h39759b7_7
libstdcxx-ng pkgs/main/linux-64::libstdcxx-ng-15.2.0-hc03a8fd_7
libunistring pkgs/main/linux-64::libunistring-1.3-hb25bd0a_0
pcre2 pkgs/main/linux-64::pcre2-10.42-hebb0a14_1
perl pkgs/main/linux-64::perl-5.42.0-0_h47b2149_perl5
zlib pkgs/main/linux-64::zlib-1.3.1-hb25bd0a_0
The following packages will be UPDATED:
_openmp_mutex conda-forge::_openmp_mutex-4.5-2_gnu --> pkgs/main::_openmp_mutex-5.1-1_gnu
The following packages will be SUPERSEDED by a higher-priority channel:
_libgcc_mutex conda-forge::_libgcc_mutex-0.1-conda_~ --> pkgs/main::_libgcc_mutex-0.1-main
ca-certificates conda-forge/noarch::ca-certificates-2~ --> pkgs/main/linux-64::ca-certificates-2025.12.2-h06a4308_0
libgcc conda-forge::libgcc-15.2.0-he0feb66_16 --> pkgs/main::libgcc-15.2.0-h69a1729_7
libgomp conda-forge::libgomp-15.2.0-he0feb66_~ --> pkgs/main::libgomp-15.2.0-h4751f2c_7
libzlib conda-forge::libzlib-1.3.1-hb9d3cd8_2 --> pkgs/main::libzlib-1.3.1-hb25bd0a_0
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done
INFO Removing Faceswap folder: '/home/gzy/faceswap'
INFO Downloading Faceswap...
正克隆到 '/home/gzy/faceswap'...
remote: Enumerating objects: 1865, done.
remote: Counting objects: 100% (1865/1865), done.
remote: Compressing objects: 100% (1489/1489), done.
remote: Total 1865 (delta 984), reused 864 (delta 348), pack-reused 0 (from 0)
接收对象中: 100% (1865/1865), 90.02 MiB | 6.64 MiB/s, 完成.
处理 delta 中: 100% (984/984), 完成.
INFO Setting up Faceswap...
INFO Setup in Linux 6.8.0-90-generic
INFO Running as User
INFO Running in Conda
INFO Running in a Virtual Environment
INFO Encoding: UTF-8
INFO Pip version: 25.3
INFO Faceswap config written to: /home/gzy/faceswap/config/.faceswap
INFO Keras config written to: /home/gzy/.keras/keras.json
INFO Installing required package...
INFO Packaging
INFO Installing Conda packages...
INFO Tk, Git, Xorg-Libxft
INFO Installing Python packages...
INFO Tqdm, Psutil, Numexpr, Numpy, Opencv-Python, Pillow, Scikit-Learn,
INFO Fastcluster, Matplotlib, Imageio, Imageio-Ffmpeg, Ffmpy,
INFO Torchvision, Tensorboard, Keras, Nvidia-Ml-Py, Torch
WARNING Unable to install Python packages: Tqdm, Psutil, Numexpr, Numpy, Opencv-Python, Pillow, Scikit-Learn, Fastcluster, Matplotlib, Imageio, Imageio-Ffmpeg, Ffmpy, Torchvision, Tensorboard, Keras, Nvidia-Ml-Py, Torch. Please install these packages manually
ERROR Some packages failed to install. Further information can be found in 'faceswap_setup.log'. The following output shows specific error(s) that were collected:
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/__main__.py", line 24, in <module>
sys.exit(_main())
~~~~~^^
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/cli/main.py", line 78, in main
command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/commands/__init__.py", line 121, in create_command
module = importlib.import_module(module_path)
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/importlib/__init__.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 1023, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/commands/install.py", line 22, in <module>
import pip._internal.self_outdated_check # noqa: F401
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/self_outdated_check.py", line 21, in <module>
from pip._internal.index.package_finder import PackageFinder
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/index/package_finder.py", line 38, in <module>
from pip._internal.req import InstallRequirement
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/req/__init__.py", line 8, in <module>
from pip._internal.cli.progress_bars import BarType, get_install_progress_renderer
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/cli/progress_bars.py", line 23, in <module>
from pip._internal.req.req_install import InstallRequirement
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/req/req_install.py", line 37, in <module>
from pip._internal.operations.install.wheel import install_wheel
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_internal/operations/install/wheel.py", line 33, in <module>
from pip._vendor.distlib.scripts import ScriptMaker
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_vendor/distlib/scripts.py", line 16, in <module>
from .compat import sysconfig, detect_encoding, ZipFile
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/pip/_vendor/distlib/compat.py", line 81, in <module>
import xmlrpc.client as xmlrpclib
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/xmlrpc/client.py", line 138, in <module>
from xml.parsers import expat
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/xml/parsers/expat.py", line 4, in <module>
from pyexpat import *
ImportError: /home/gzy/miniconda3/envs/faceswap/lib/python3.13/lib-dynload/pyexpat.cpython-313-x86_64-linux-gnu.so: undefined symbol: XML_SetAllocTrackerActivationThreshold
INFO Faceswap installation is complete!> python /home/gzy/fs/faceswap.py extract -aIP -i ~/fs/data/blue/xhs/sum -o /home/gzy/fs/data/blue/extract/p -D s3fd -A fan -M bisenet-fp -O hist -R 1 -m 20 -l 0.6 -z 512 -N 1 -v 0 -X 0 -L INFO
.........
01/09/2026 04:44:56 INFO Initializing S3FD (Detect)...
Process Process-1:
Traceback (most recent call last):
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/multiprocessing/process.py", line 313, in _bootstrap
self.run()
~~~~~~~~^^
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/gzy/faceswap/scripts/extract.py", line 704, in process
self._run_extraction()
~~~~~~~~~~~~~~~~~~~~^^
File "/home/gzy/faceswap/scripts/extract.py", line 724, in _run_extraction
self._extractor.launch()
~~~~~~~~~~~~~~~~~~~~~~^^
File "/home/gzy/faceswap/plugins/extract/pipeline.py", line 252, in launch
self._launch_plugin(phase)
~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/home/gzy/faceswap/plugins/extract/pipeline.py", line 777, in _launch_plugin
plugin.initialize(**kwargs)
~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/home/gzy/faceswap/plugins/extract/_base.py", line 517, in initialize
self.init_model()
~~~~~~~~~~~~~~~^^
File "/home/gzy/faceswap/plugins/extract/detect/s3fd.py", line 47, in init_model
self.model = S3fd(self.model_path, self.batchsize, confidence)
~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/gzy/faceswap/plugins/extract/detect/s3fd.py", line 242, in __init__
self._model = self._load_model(weights_path)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
File "/home/gzy/faceswap/plugins/extract/detect/s3fd.py", line 329, in _load_model
var_x = self.conv_block(input_, 64, 1, 2)
File "/home/gzy/faceswap/plugins/extract/detect/s3fd.py", line 276, in conv_block
var_x = Conv2D(filters,
...<2 lines>...
activation="relu",
name=rec_name)(var_x)
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/keras/src/utils/traceback_utils.py", line 122, in error_handler
raise e.with_traceback(filtered_tb) from None
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/torch/_dynamo/eval_frame.py", line 1048, in _fn
_maybe_set_eval_frame(prior)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/home/gzy/miniconda3/envs/faceswap/lib/python3.13/site-packages/torch/cuda/__init__.py", line 398, in _lazy_init
raise RuntimeError(
...<2 lines>...
)
RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start methodDesktop (please complete the following information):
- OS: Linux 6.8.0-90-generic ~22.04.1-Ubuntu
- Python Version 3.13
- Conda Version 23.9.0
- Commit ID 342e19d
Additional context
Add any other context about the problem here.
Crash Report
The crash report generated in the root of your Faceswap folder