name 'self' is not defined when doing an unittest?

Question

Edit

So I did try again, with a new file called test2.py and it works. I packaged repoman , and test.py is in the src folder. I modified test.py after I created and installed my repoman egg. I think that's the problem. But thanks for the help. Do you guys think that's the exact reason?

---

import unittest
import requests
from repoman.core import ultraman, supported
from repoman.ext import writefile,locate_repo

class TestWriteFile(unittest.TestCase):

    def setUp(self):
        self.username = 'dummy'
        self.password = 'dummy'
        self.remote   = 'http://192.168.1.138:6666/scm/hg/NCL'

    def test_scm_permission(self):
        """
        Test SCM login.
        """
        r = requests.get("http://192.168.1.138:6666/scm/", auth=(self.username, self.password))
        self.assertTrue(r.ok)

if __name__ == '__main__':
    unittest.main()

Running python test.py I get this error:

Traceback (most recent call last):
  File "test.py", line 7, in <module>
    class TestWriteFile(unittest.TestCase):
  File "test.py", line 19, in TestWriteFile
    self.assertTrue(r.ok)
NameError: name 'self' is not defined

I don't think I need to overwrite __init__ function, do I? What's causing this? Why is self not defined? I already declared my superclass unittest.TestCase

Thanks.

I basically learned it from the official sample: Unittest - Basic Example

Answer 1

I'm not sure where the problem is coming from -- whether it's a copying error or the wrong test.py is being executed [update: or some mixed tabs-and-spaces issue, I can never figure out when those get flagged and when they don't] -- but the root cause is almost certainly an indentation error.

Note that the error message is

NameError: name 'self' is not defined

and not

NameError: global name 'self' is not defined

which @Rik Poggi got. This is exactly what happens if you move the self.assertTrue one level in/up:

~/coding$ cat test_good_indentation.py
import unittest

class TestWriteFile(unittest.TestCase):
    def test(self):
        """
        Doc goes here.
        """
        self.assertTrue(1)

if __name__ == '__main__':
    unittest.main()

~/coding$ python test_good_indentation.py 
.
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK

versus

~/coding$ cat test_bad_indentation.py
import unittest

class TestWriteFile(unittest.TestCase):
    def test(self):
        """
        Doc goes here.
        """
    self.assertTrue(1)

if __name__ == '__main__':
    unittest.main()

~/coding$ python test_bad_indentation.py 
Traceback (most recent call last):
  File "test_bad_indentation.py", line 3, in <module>
    class TestWriteFile(unittest.TestCase):
  File "test_bad_indentation.py", line 8, in TestWriteFile
    self.assertTrue(1)
NameError: name 'self' is not defined

Answer 2

I don't think that what you showed is the actual code that get executed.

I and others belive that, for a couple of reasons:

• If self.assertTrue(r.ok) fails then the line before will too. Therefore self.assertTrue(r.ok) won't execute. (as David Heffernan said)
• And because your code looks fine.

I'd say that you probably made a typo of this kind:

def test_scm_permission(self):
                         ^
                         |
         and wrote something here that's not self

In some file that get executed instead of the one you're showing.

Take a look at this example:

# test.py
class MyClass:

    def func(sel):    # typo error here
        self.name = 10


obj = MyClass()
obj.func()

And when I tried to run:

$ python3 test.py 
Traceback (most recent call last):
  File "test.py", line 8, in <module>
    obj.func()
  File "test.py", line 4, in func
    self.name = 10
NameError: global name 'self' is not defined

Having a traceback similar to yours.

Note: Also if I'm not counting wrong self.assertTrue(r.ok) is on line 18, instead of line 19 (which is the number showed in your traceback).