CODEWITHSUNDEEP
python
cruelcage
cruelcage

Reputation: 2094

What does ".main" mean in python source code?

In a source code in python: usr/local/lib/python3.3/unittest/__init__.py

from .result import TestResult
from .case import (TestCase, FunctionTestCase, SkipTest, skip, skipIf,
                   skipUnless, expectedFailure)
from .suite import BaseTestSuite, TestSuite
from .loader import (TestLoader, defaultTestLoader, makeSuite, getTestCaseNames,
                     findTestCases)
from .main import TestProgram, main
from .runner import TextTestRunner, TextTestResult
from .signals import installHandler, registerResult, removeResult, removeHandler

I can't understand .result and .main. Why do they have a dot prefix in the name?

Upvotes: 3

Views: 669

Answers (2)

jabaldonedo
jabaldonedo

Reputation: 26582

You are importing main module which is in the same package that your file, you are doing a relative import (dot prefix). More on relative imports on PEP 328

Upvotes: 0

Bite code
Bite code

Reputation: 597203

It's called a relative import.

It means you import from the module in the same directory that the module this code is in. Without the dot, it would import the from first module found in the PYTHON PATH.

Upvotes: 6

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