main.py中引用了
import pandas as pd
运行main.py文件没问题,但是运行pytest报错如下:
ImportError while importing test module '/Users/joe/workspace/platform/mgap-mendel/mgap-mendel/tests/test_mendel.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
test_mendel.py:1: in <module>
from mgap_mendel.main import *
../mgap_mendel/__init__.py:2: in <module>
from .main import *
../mgap_mendel/main.py:3: in <module>
import pandas as pd
E ModuleNotFoundError: No module named 'pandas'
原因
pytest使用的环境与python运行的环境不一致
使用命令排查
(venv) zhangxiaofans-MacBook-Pro:tests joe$ which python
/Users/joe/workspace/platform/mgap-mendel/mgap-mendel/venv/bin/python
(venv) zhangxiaofans-MacBook-Pro:tests joe$ which pytest
/usr/bin/local/pytest
明显发现环境不一致
解决方法
在当前沙箱环境中重新安装pytest,然后重新打开一次终端(右键test_mendel.py文件open in terminal)。
(venv) zhangxiaofans-MacBook-Pro:tests joe$
pip3 install pytest
如下为正常
(venv) zhangxiaofans-MacBook-Pro:tests joe$ which python
/Users/joe/workspace/platform/mgap-mendel/mgap-mendel/venv/bin/python
(venv) zhangxiaofans-MacBook-Pro:tests joe$ which pytest
/Users/joe/workspace/platform/mgap-mendel/mgap-mendel/venv/bin/pytest
更多可能和解决方法
在网上的资料有其他的解决方式
一、删除tests目录下的__init__.py文件
详情参考
https://stackoverflow.com/questions/41748464/pytest-cannot-import-module-while-python-can
二、创建一个调整目录的代码文件
假如目录如下:
\test_pytest
mypkg/
__init__.py
app.py
tests/
test_app.py
You can create a context.py file in tests:
from __future__ import absolute_import
import os
import sys
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
import mypkg
Then in your test file, add
from .context import mypkg
三、使用conftest.py文件
新建conftest.py
内容如下:
import os
import sys
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))) |