我正在用Python编写一个包。我使用virtualenv。我在virtualenv的.pth路径中设置了模块的根路径,这样我就可以在开发代码和测试时导入包的模块(问题1:这是一种好方法吗?)这很好(这是一个例子,这是我想要的行为):
(VEnvTestRc) zz@zz:~/Desktop/GitFolders/rc$ python
Python 2.7.12 (default, Jul 1 2016, 15:12:24)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from rc import ns
>>> exit()
(VEnvTestRc) zz@zz:~/Desktop/GitFolders/rc$ python tests/test_ns.py
issued command: echo hello
command output: hello
但是,如果我尝试使用PyTest,我会得到一些导入错误消息:
(VEnvTestRc) zz@zz:~/Desktop/GitFolders/rc$ pytest
=========================================== test session starts ============================================
platform linux2 -- Python 2.7.12, pytest-3.0.5, py-1.4.31, pluggy-0.4.0
rootdir: /home/zz/Desktop/GitFolders/rc, inifile:
collected 0 items / 1 errors
================================================== ERRORS ==================================================
________________________________ ERROR collecting tests/test_ns.py ________________________________
ImportError while importing test module '/home/zz/Desktop/GitFolders/rc/tests/test_ns.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests/test_ns.py:2: in <module>
from rc import ns
E ImportError: cannot import name ns
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
========================================= 1 error in 0.09 seconds ==========================================
(VEnvTestRc) zz@zz:~/Desktop/GitFolders/rc$ which pytest
/home/zz/Desktop/VirtualEnvs/VEnvTestRc/bin/pytest
我有点困惑,这似乎表明一个导入错误,但Python做得很好,为什么有一个问题,特别是与PyTest?对原因/补救(问题2)有什么建议吗?我在谷歌上搜索了PyTest的“ImportError: cannot import”错误,但我得到的点击率与丢失的python路径和补救措施有关,这似乎不是这里的问题。有什么建议吗?
我最近也遇到了类似的问题。对我来说,它的工作方式是意识到“setup.py”是错误的
以前我删除了我以前的src文件夹,并添加了一个新的与其他名称,但我没有改变setup.py(新手错误我猜)。
因此,将setup.py指向正确的packages文件夹对我来说很有用
from setuptools import find_packages, setup
setup(
name="-> YOUR SERVICE NAME <-",
extras_Require=dict(test=["pytest"]),
packages=find_packages(where="->CORRECT FOLDER<-"),
package_dir={"": "->CORRECT FOLDER<-"},
)
另外,不要在test文件夹或根文件夹中使用init.py。
希望它能帮助到别人=)
最好!
保持一切不变,只是在根文件夹中添加了一个空白的测试文件。解决了这个问题
以下是调查结果,这个问题确实困扰了我一段时间。
文件夹结构是
mathapp/
- server.py
- configuration.py
- __init__.py
- static/
- home.html
tests/
- functional
- test_errors.py
- unit
- test_add.py
和pytest会抱怨ModuleNotFoundError,并给出提示:
确保你的测试模块/包有有效的Python名称。
我介绍了一个与mathsapp和tests目录相同级别的模拟测试文件。文件里什么也没有。现在pytest没有抱怨了。
不包含文件的结果
$ pytest
============================= test session starts =============================
platform win32 -- Python 3.8.2, pytest-5.4.2, py-1.8.1, pluggy-0.13.1
rootdir: C:\mak2006\workspace\0github\python-rest-app-cont
collected 1 item / 1 error
=================================== ERRORS ====================================
_______________ ERROR collecting tests/functional/test_func.py ________________
ImportError while importing test module 'C:\mainak\workspace\0github\python-rest-app-cont\tests\functional\test_func.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests\functional\test_func.py:4: in <module>
from mathapp.service import sum
E ModuleNotFoundError: No module named 'mathapp'
=========================== short test summary info ===========================
ERROR tests/functional/test_func.py
!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
============================== 1 error in 0.24s ===============================
文件的结果
$ pytest
============================= test session starts =============================
platform win32 -- Python 3.8.2, pytest-5.4.2, py-1.8.1, pluggy-0.13.1
rootdir: C:\mak2006\workspace\0github\python-rest-app-cont
collected 2 items
tests\functional\test_func.py . [ 50%]
tests\unit\test_unit.py . [100%]
============================== 2 passed in 0.11s ==============================