突然无法使用类导入Pytest的python文件

Question

我正在检查有关导入python文件的类似问题，它似乎与我的_init_.py文件在主要父级文件夹中的级别相比，从我的tests文件夹（其中包含所有文件我的测试文件）导入类，但不知道。也许这与此无关。

我正在使用pytest进行测试，并希望将多个测试分组到一个类中，以帮助我测试多个句子的解析：http://doc.pytest.org/en/latest/getting-started.html#grouping-multiple-tests-in-a-class。

现在，当来自同一文件夹中的其他文件（test_pipelines.py）时，我尝试并运行import test_text我无法执行此操作。这是为什么？

这里的主要问题是这个说法from test_text import UNEMPLOYMENT_SENTENCES在test_pipelines.py甚至没有拿起文件test_text，更不用说UNEMPLOYMENT_SENTENCES在里面。

test_text.py

UNEMPLOYMENT_SENTENCES = [ 
    "The number of people out of work in Brazil is 2% of the population", 
    "2% of Brazil is out of work", 
    "2% of Brazil's citizens are jobless", 
    "About 9% of Brazil's citizens are out of work or looking for jobs", 
    "Brazil is in trouble; it has an unemployment rate of 7%", 
    "Brazil is facing issues - it has an unemployment % of 6%" 
] 

def test_sample_sentences(): 
    """ 
    :param sentence_array: array 
    :return: tests all sentences with 3 tests 
    """ 

    for sentence in UNEMPLOYMENT_SENTENCES: 
     doc = Text(sentence) 
     test_instance = UnemploymentTestClass(doc) 
     test_instance.sentence_tokenization() 
     test_instance.entities() 
     test_instance.claim_candidates() 

class UnemploymentTestClass: 

    def __init__(self,s): 
     """ 
     Initiates a test sentence 
     """ 
     self.s=s 

    ....What follows is a list of functions that call self as an argument but don't contain 'test' at the front for pytest. e.g. def sentence_tokenization(self), def entities(self), def claim_candidates(self), using self.s as a parameter to play with. 


class ComplexTestClass: 
    """ 
    Complex and more nuanced tests for specific sentences 
    """ 
    ...Note, these are all @staticmethod functions which start with the word 'test_' e.g. def test_multiple_sentences().... so pytest can pick them up. 

Answer 1

文件__init__.py的内容来构建你的模块，然后将组。

如果你把你的test_text.py放在你有输入它的脚本的文件夹中，那应该没有问题。如果您的test_text.py位于子文件夹中，我建议添加__init__.py文件。

这是一个封装结构会是什么样子：

sound/       Top-level package 
     __init__.py    Initialize the sound package 
     formats/     Subpackage for file format conversions 
       __init__.py 
       wavread.py 
       wavwrite.py 
       aiffread.py 
       aiffwrite.py 
       auread.py 
       auwrite.py 
       ... 
     effects/     Subpackage for sound effects 
       __init__.py 
       echo.py 
       surround.py 
       reverse.py 
       ... 
     filters/     Subpackage for filters 
       __init__.py 
       equalizer.py 
       vocoder.py 
       karaoke.py 
       ... 

的__init__.py你可以声明瓦尔里面像__all__ = ["echo", "surround", "reverse"]这将导入您指定的文from sound.effects import *

PS所有子：我抄你的代码，并没有任何问题从相同的文件夹中导入它。

PS2：来源：https://docs.python.org/3/tutorial/modules.html#packages

的代码块，对我，当我在同一个文件夹中放置prueba.py（代码段）作为进口它的脚本作品。

from prueba import UnemploymentTestClass 
a = UnemploymentTestClass("asd") 
print a.s 

# print result 
# asd