functional-test does not work with Debian/Ubuntu

[Jun Omae]

functional-test get the below error with Debian.

mechanize._mechanize.BrowserStateError: cannot go to 'http://127.0.0.1:8395'

twill and lxml is installed from debian packges (not using easy_install).

The python-twill debian package does not contain mechanize. Then, I installed python-mechanize package.

jun66j5@localhost:199$ dpkg -l python-lxml python-twill python-mechanize
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                        Version                     Description
+++-===========================-===========================-======================================================================
ii  python-lxml                 2.1.1-2.1                   pythonic binding for the libxml2 and libxslt libraries
ii  python-mechanize            0.1.11-1.1                  stateful programmatic web browsing
ii  python-twill                0.9-1                       A simple scripting language for Web browsing

Therefore, from _mechanize_dist._mechanize import BrowserStateError always fails. For Debian and Ubuntu, use from mechanize import BrowserStateError instead of.

trac/tests/functional/better_twill.py

@@ -31 +31 @@
 try:
     from _mechanize_dist._mechanize import BrowserStateError as ConnectError
 except ImportError:
-    from urllib2 import URLError as ConnectError
+    try:
+        # For python-mechanize on Debian, Ubuntu
+        from mechanize import BrowserStateError as ConnectError
+    except ImportError:
+        from urllib2 import URLError as ConnectError
 
 
 if twill:

Full error log.

jun66j5@localhost:165$ PYTHONPATH=$PWD make functional-test
Python version: Python 2.5.2
figleaf:
coverage:
PYTHONPATH=.:/home/jun66j5/src/trac.git
TRAC_TEST_DB_URI=
server-options= -p 8000  -r -e
python setup.py egg_info
running egg_info
writing requirements to Trac.egg-info/requires.txt
writing Trac.egg-info/PKG-INFO
writing top-level names to Trac.egg-info/top_level.txt
writing dependency_links to Trac.egg-info/dependency_links.txt
writing entry points to Trac.egg-info/entry_points.txt
reading manifest file 'Trac.egg-info/SOURCES.txt'
writing manifest file 'Trac.egg-info/SOURCES.txt'
python trac/tests/functional/__init__.py -v
Traceback (most recent call last):
  File "trac/tests/functional/__init__.py", line 168, in <module>
    unittest.main(defaultTest='suite')
  File "/usr/lib/python2.5/unittest.py", line 768, in __init__
    self.runTests()
  File "/usr/lib/python2.5/unittest.py", line 805, in runTests
    result = self.testRunner.run(self.test)
  File "/usr/lib/python2.5/unittest.py", line 705, in run
    test(result)
  File "/usr/lib/python2.5/unittest.py", line 437, in __call__
    return self.run(*args, **kwds)
  File "/usr/lib/python2.5/unittest.py", line 433, in run
    test(result)
  File "/usr/lib/python2.5/unittest.py", line 437, in __call__
    return self.run(*args, **kwds)
  File "/home/jun66j5/src/trac.git/trac/test.py", line 136, in run
    self.setUp()
  File "/home/jun66j5/src/trac.git/trac/tests/functional/__init__.py", line 122, in setUp
    self._testenv.start()
  File "/home/jun66j5/src/trac.git/trac/tests/functional/testenv.py", line 186, in start
    tc.go(self.url)
  File "/var/lib/python-support/python2.5/twill/commands.py", line 112, in go
    browser.go(url)
  File "/var/lib/python-support/python2.5/twill/browser.py", line 123, in go
    raise BrowserStateError("cannot go to '%s'" % (url,))
mechanize._mechanize.BrowserStateError: cannot go to 'http://127.0.0.1:8395'
make: *** [functional-test] Error 1

[Remy Blank]

Twill bundles its own copy of mechanize, and does some sys.path magic to make it appear as a top-level package _mechanize_dist. Debian has a history of disliking bundled copies (often for good reasons), so they probably strip the bundled copy.

Maybe we could import BrowserStateError from twill.browser instead, as that's where twill imports and uses it?

[Jun Omae]

Replying to rblank:

Maybe we could import BrowserStateError from twill.browser instead, as that's where twill imports and uses it?

I tried from twill.browser import BrowserStateError. It is working.

I verified with…

• CentOS: python 2.4 with twill (using easy_install)
• Debian: python 2.5 with python-twill and python-mechanize package
• Ubuntu: python 2.5, python 2.6 with python-twill and python-mechanize package

trac/tests/functional/better_twill.py

@@ -27 +27 @@
 
 # When twill tries to connect to a site before the site is up, it raises an
 # exception.  In 0.9b1, it's urlib2.URLError, but in -latest, it's
-# _mechanize_dist._mechanize.BrowserStateError.
+# twill.browser.BrowserStateError.
 try:
-    from _mechanize_dist._mechanize import BrowserStateError as ConnectError
+    from twill.browser import BrowserStateError as ConnectError
 except ImportError:
     from urllib2 import URLError as ConnectError
 

[Christian Boos]

Verified on Windows, with Python 2.4 to 2.7.

Patch applied in r10243.