求助：已安装的anti-SMASH无法导入AbstractPosition报错解决

安全阿岳

2026-8-5

问题描述

测试刚安装的anti-SMASH是否可用时，执行antismash --check-prereqs、antismash --help或antismash --help-showall均出现以下导入错误：

Traceback (most recent call last):
File "/home/promt/asenv/bin/antismash", line 5, in 
from antismash.__main__ import entrypoint
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/__init__.py", line 12, in 
from antismash.main import run_antismash, get_detection_modules, 
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/main.py", line 31, in 
from antismash.common import logs, record_processing, serialiser
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/record_processing.py", line 19, in 
from antismash.common.secmet import Record
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/__init__.py", line 11, in 
from .record import Record
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/record.py", line 25, in 
from .features import (
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/features/__init__.py", line 6, in 
from .antismash_domain import AntismashDomain
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/features/antismash_domain.py", line 10, in 
from .domain import Domain, generate_protein_location_from_qualifiers
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/features/domain.py", line 13, in 
from .feature import Feature, FeatureLocation, Location
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/features/feature.py", line 13, in 
from antismash.common.secmet.locations import (
File "/home/promt/asenv/lib/python3.9/site-packages/antismash/common/secmet/locations.py", line 9, in 
from Bio.SeqFeature import (
ImportError: cannot import name 'AbstractPosition' from 'Bio.SeqFeature' (/home/promt/asenv/lib/python3.9/site-packages/Bio/SeqFeature.py)

解决方案

这个错误是由于Biopython版本不兼容导致的：Biopython 1.80及以上版本重构了SeqFeature模块，移除了AbstractPosition类，而当前安装的anti-SMASH版本依赖该类。解决步骤如下：

查看当前环境的Biopython版本：
```
pip show biopython
```
卸载现有不兼容版本：
```
pip uninstall -y biopython
```
安装anti-SMASH兼容的Biopython旧版本（推荐1.79版本，适配多数anti-SMASH稳定版）：
```
pip install biopython==1.79
```
重新运行检查命令验证修复效果：
```
antismash --check-prereqs
```

如果是通过conda环境安装的anti-SMASH，改用conda命令调整版本：

conda install biopython=1.79

内容的提问来源于stack exchange，提问作者Erwin John Sioson