Port to Python 3

Had to switch to manuel because zope.testing.doctest is gone and
stdlib's doctest doesn't support INTERPRET_FOOTNOTES.

Had to reduce the precision of floating point numbers in HTML reports
because Python 3 formats floats slightly differently.

Could not resist fixing a bug in find_restarts(), which is not covered
by tests: the parse_dt() it was trying to call did was replaced by
parse_datetime() in commit 9ba3d7f

Did resist fixing a logic bug in seconds_difference(), but added an XXX
comment.

.coveragerc

@@ -0,0 +1,7 @@
+[run]
+source = zc.zservertracelog
+
+[report]
+exclude_lines =
+    pragma: nocover
+    if __name__ == .__main__.:

.gitignore

@@ -9,3 +9,4 @@ build/
 dist/
 *.egg-info/
 .tox/
+.coverage

.travis.yml

@@ -1,12 +1,20 @@
 language: python
-sudo: false
+dist: xenial
 python:
-    - 2.6
     - 2.7
+    - 3.4
+    - 3.5
+    - 3.6
+    - 3.7
+    - pypy2.7-6.0.0
+    - pypy3.5-6.0.0
 install:
-    - python bootstrap.py
-    - bin/buildout
+    - pip install coveralls coverage zope.testrunner
+    - pip install -e .[test]
 script:
     - bin/test -pvc
+    - coverage run -m zope.testrunner --test-path=src -pvc
+after_success:
+    - coveralls
 notifications:
     email: false

CHANGES.rst

@@ -1,10 +1,14 @@
 Changes
 =======
 
-1.4.1 (unreleased)
+2.0.0 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Limit number precision in HTML reports to 3 decimal digits.
+
+- Drop Python 2.6 support.
+
+- Add Python 3.4 through 3.7 support.
 
 
 1.4.0 (2015-05-06)

MANIFEST.in

@@ -3,5 +3,5 @@ include *.rst
 include buildout.cfg
 include tox.ini
 recursive-include src *.log
-recursive-include src *.txt
+recursive-include src *.rst
 recursive-include src *.zcml

setup.py

@@ -22,7 +22,7 @@ def read(*rnames):
 
 setup(
     name='zc.zservertracelog',
-    version='1.4.1.dev0',
+    version='2.0.0.dev0',
     url='https://github.com/zopefoundation/zc.zservertracelog',
     author='Zope Corporation and Contributors',
     author_email='zope3-dev@zope.org',
@@ -34,23 +34,31 @@ def read(*rnames):
     ),
     license='ZPL 2.1',
     keywords='zope3',
+    classifiers=[
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: Implementation :: CPython',
+        'Programming Language :: Python :: Implementation :: PyPy',
+    ],
     packages=find_packages('src'),
     namespace_packages=['zc'],
     package_dir={'': 'src'},
     install_requires=[
         'setuptools',
+        'six',
         'zope.app.appsetup',
         'zope.app.server',
         'zope.app.wsgi',
+        'zope.component',
+        'zope.interface',
+        'zope.publisher',
         'zope.server',
     ],
     extras_require=dict(
         test=[
-            # Our test suite uses zope.testing.doctest.INTERPRET_FOOTNOTES
-            # That feature is gone from zope.testing 4.0.0 with the entire
-            # zope.testing.doctest fork of the stdlib's doctest.  The proper
-            # way forward would be to switch to Manuel.
-            'zope.testing < 4.0.0',
+            'manuel',
         ],
     ),
     include_package_data=True,

src/zc/zservertracelog/README.txt → src/zc/zservertracelog/README.rst

@@ -57,7 +57,7 @@ Let's also define a convenience function for processing requests.
 
 Process a simple request.
 
-    >>> req1 = """\
+    >>> req1 = b"""\
     ... GET /test-req1 HTTP/1.1
     ... Host: www.example.com
     ...
@@ -150,7 +150,7 @@ Log Messages Containing Line Breaks
 Messages to the tracelog that contain newline characters will not split a log
 entry into multiple lines.
 
-    >>> req2 = """\
+    >>> req2 = b"""\
     ... GET /test-req2/%0Aohnoes/ HTTP/1.1
     ... Host: www.example.com/linebreak
     ...
@@ -169,7 +169,7 @@ Request Query Strings
 
 The tracelog preserves request query strings.
 
-    >>> req3 = """\
+    >>> req3 = b"""\
     ... GET /test-req3/?creature=unicorn HTTP/1.1
     ... Host: www.example.com/query-string
     ...

src/zc/zservertracelog/fseek.py

@@ -1,9 +1,13 @@
-import StringIO
-import string
 import unittest
 
+from six.moves import cStringIO as StringIO
 
-def fseek(f, size, search, getkey=string.strip):
+
+def strip(s):
+    return s.strip()
+
+
+def fseek(f, size, search, getkey=strip):
     # Check first line
     key = getkey(f.readline())
     if key >= search:
@@ -12,15 +16,15 @@ def fseek(f, size, search, getkey=string.strip):
 
     seen = 0
     position = 0
-    seek = chunk = size / 2
+    seek = chunk = size // 2
     while chunk > 0:
         f.seek(seek)
-        line = f.readline() # maybe incomplete
+        line = f.readline()  # maybe incomplete
         position = f.tell()
-        line = f.readline() # complete
+        line = f.readline()  # complete
         key = getkey(line)
 
-        chunk /= 2
+        chunk //= 2
 
         if key >= search:
             seek -= chunk
@@ -37,7 +41,7 @@ def fseek(f, size, search, getkey=string.strip):
 
 def _get_btree_args(*lines):
     content = '\n'.join(lines)
-    f = StringIO.StringIO(content)
+    f = StringIO(content)
     size = len(content)
     return (f, size)
 
@@ -60,16 +64,20 @@ def test_1(self):
         p = fseek(f, size, '0')
         self.assertEqual(p, 0)
 
-        f.seek(0) ; p = fseek(f, size, '1')
+        f.seek(0)
+        p = fseek(f, size, '1')
         self.assertEqual(p, 2)
 
-        f.seek(0) ; p = fseek(f, size, '2')
+        f.seek(0)
+        p = fseek(f, size, '2')
         self.assertEqual(p, 4)
 
-        f.seek(0) ; p = fseek(f, size, '3')
+        f.seek(0)
+        p = fseek(f, size, '3')
         self.assertEqual(p, 6)
 
-        f.seek(0) ; p = fseek(f, size, '4')
+        f.seek(0)
+        p = fseek(f, size, '4')
         self.assertEqual(p, 8)
 
     def test_2(self):
@@ -88,10 +96,12 @@ def test_2(self):
         p = fseek(f, size, '0')
         self.assertEqual(p, 0)
 
-        f.seek(0) ; p = fseek(f, size, '1')
+        f.seek(0)
+        p = fseek(f, size, '1')
         self.assertEqual(p, 6)
 
-        f.seek(0) ; p = fseek(f, size, '2')
+        f.seek(0)
+        p = fseek(f, size, '2')
         self.assertEqual(p, 12)
 
     def test_3(self):
@@ -106,18 +116,18 @@ def test_3(self):
         p = fseek(f, size, '0')
         self.assertEqual(p, 0)
 
-        f.seek(0) ; p = fseek(f, size, '1', _get_colon_key)
+        f.seek(0)
+        p = fseek(f, size, '1', _get_colon_key)
         self.assertEqual(p, 16)
 
-        f.seek(0) ; p = fseek(f, size, '2', _get_colon_key)
+        f.seek(0)
+        p = fseek(f, size, '2', _get_colon_key)
         self.assertEqual(p, 26)
 
-        f.seek(0) ; p = fseek(f, size, '3', _get_colon_key)
+        f.seek(0)
+        p = fseek(f, size, '3', _get_colon_key)
         self.assertEqual(p, 67)
 
-        f.seek(0) ; p = fseek(f, size, '4', _get_colon_key)
+        f.seek(0)
+        p = fseek(f, size, '4', _get_colon_key)
         self.assertEqual(p, 76)
-
-
-if __name__ == '__main__':
-    unittest.main()

src/zc/zservertracelog/tests.py

@@ -16,16 +16,26 @@
 """
 __docformat__ = "reStructuredText"
 
-from zope.testing import doctest
+import doctest
 import os
 import re
 import unittest
+
+import manuel.doctest
+import manuel.footnote
+import manuel.testing
 import zope.testing.renormalizing
 
 from zc.zservertracelog.fseek import FSeekTest
 
 here = os.path.dirname(os.path.abspath(__file__))
 
+optionflags = (
+    doctest.NORMALIZE_WHITESPACE
+    | doctest.ELLIPSIS
+    | doctest.REPORT_ONLY_FIRST_FAILURE
+)
+
 checker = zope.testing.renormalizing.RENormalizing([
     # normalize the channel id and iso8601 timestamp
     (re.compile(r'-?\d+ \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{6}'),
@@ -35,7 +45,9 @@
     (re.compile(r'zope-testrunner'), 'test'),  # sys.argv[0] when run from tox
 ])
 
-_null_app = lambda environ, start_response: None
+
+def _null_app(environ, start_response):
+    pass
 
 
 class FauxApplication(object):
@@ -57,21 +69,16 @@ def analysis_setUp(test):
 
 
 def test_suite():
-    tests = [
+    m = manuel.doctest.Manuel(
+        optionflags=optionflags,
+        checker=checker,
+    )
+    m += manuel.footnote.Manuel()
+    return unittest.TestSuite([
+        manuel.testing.TestSuite(m, 'README.rst', setUp=setUp),
         doctest.DocFileTest(
-            'README.txt',
-            optionflags=(
-                doctest.NORMALIZE_WHITESPACE
-                | doctest.ELLIPSIS
-                | doctest.INTERPRET_FOOTNOTES),
-            checker=checker,
-            setUp=setUp,
-            ),
-        doctest.DocFileTest(
-            'tracereport.txt',
+            'tracereport.rst',
             checker=checker,
             setUp=analysis_setUp),
         unittest.makeSuite(FSeekTest),
-    ]
-
-    return unittest.TestSuite(tests)
+    ])