Remove deprecated Tester class from doctest module.

Doc/library/doctest.rst

@@ -163,10 +163,9 @@ prohibit it by passing ``verbose=False``.  In either of those cases,
 ``sys.argv`` is not examined by :func:`testmod` (so passing :option:`-v` or not
 has no effect).
 
-Since Python 2.6, there is also a command line shortcut for running
-:func:`testmod`.  You can instruct the Python interpreter to run the doctest
-module directly from the standard library and pass the module name(s) on the
-command line::
+There is also a command line shortcut for running :func:`testmod`.  You can
+instruct the Python interpreter to run the doctest module directly from the
+standard library and pass the module name(s) on the command line::
 
    python -m doctest -v example.py
 
@@ -233,10 +232,9 @@ Like :func:`testmod`, :func:`testfile`'s verbosity can be set with the
 :option:`-v` command-line switch or with the optional keyword argument
 *verbose*.
 
-Since Python 2.6, there is also a command line shortcut for running
-:func:`testfile`.  You can instruct the Python interpreter to run the doctest
-module directly from the standard library and pass the file name(s) on the
-command line::
+There is also a command line shortcut for running :func:`testfile`.  You can
+instruct the Python interpreter to run the doctest module directly from the
+standard library and pass the file name(s) on the command line::
 
    python -m doctest -v example.txt
 
@@ -888,15 +886,10 @@ Unittest API
 ------------
 
 As your collection of doctest'ed modules grows, you'll want a way to run all
-their doctests systematically.  Prior to Python 2.4, :mod:`doctest` had a barely
-documented :class:`Tester` class that supplied a rudimentary way to combine
-doctests from multiple modules. :class:`Tester` was feeble, and in practice most
-serious Python testing frameworks build on the :mod:`unittest` module, which
-supplies many flexible ways to combine tests from multiple sources.  So, in
-Python 2.4, :mod:`doctest`'s :class:`Tester` class is deprecated, and
-:mod:`doctest` provides two functions that can be used to create :mod:`unittest`
-test suites from modules and text files containing doctests.  These test suites
-can then be run using :mod:`unittest` test runners::
+their doctests systematically.  :mod:`doctest` provides two functions that can
+be used to create :mod:`unittest` test suites from modules and text files
+containing doctests.  These test suites can then be run using :mod:`unittest`
+test runners::
 
    import unittest
    import doctest

Lib/doctest.py

@@ -166,10 +166,9 @@ ELLIPSIS_MARKER = '...'
 #  4. DocTest Finder -- extracts test cases from objects
 #  5. DocTest Runner -- runs test cases
 #  6. Test Functions -- convenient wrappers for testing
-#  7. Tester Class -- for backwards compatibility
-#  8. Unittest Support
-#  9. Debugging Support
-# 10. Example Usage
+#  7. Unittest Support
+#  8. Debugging Support
+#  9. Example Usage
 
 ######################################################################
 ## 1. Utility Functions
@@ -1968,72 +1967,7 @@ def run_docstring_examples(f, globs, verbose=False, name="NoName",
         runner.run(test, compileflags=compileflags)
 
 ######################################################################
-## 7. Tester
-######################################################################
-# This is provided only for backwards compatibility.  It's not
-# actually used in any way.
-
-class Tester:
-    def __init__(self, mod=None, globs=None, verbose=None, optionflags=0):
-
-        warnings.warn("class Tester is deprecated; "
-                      "use class doctest.DocTestRunner instead",
-                      DeprecationWarning, stacklevel=2)
-        if mod is None and globs is None:
-            raise TypeError("Tester.__init__: must specify mod or globs")
-        if mod is not None and not inspect.ismodule(mod):
-            raise TypeError("Tester.__init__: mod must be a module; %r" %
-                            (mod,))
-        if globs is None:
-            globs = mod.__dict__
-        self.globs = globs
-
-        self.verbose = verbose
-        self.optionflags = optionflags
-        self.testfinder = DocTestFinder()
-        self.testrunner = DocTestRunner(verbose=verbose,
-                                        optionflags=optionflags)
-
-    def runstring(self, s, name):
-        test = DocTestParser().get_doctest(s, self.globs, name, None, None)
-        if self.verbose:
-            print("Running string", name)
-        (f,t) = self.testrunner.run(test)
-        if self.verbose:
-            print(f, "of", t, "examples failed in string", name)
-        return TestResults(f,t)
-
-    def rundoc(self, object, name=None, module=None):
-        f = t = 0
-        tests = self.testfinder.find(object, name, module=module,
-                                     globs=self.globs)
-        for test in tests:
-            (f2, t2) = self.testrunner.run(test)
-            (f,t) = (f+f2, t+t2)
-        return TestResults(f,t)
-
-    def rundict(self, d, name, module=None):
-        import types
-        m = types.ModuleType(name)
-        m.__dict__.update(d)
-        if module is None:
-            module = False
-        return self.rundoc(m, name, module)
-
-    def run__test__(self, d, name):
-        import types
-        m = types.ModuleType(name)
-        m.__test__ = d
-        return self.rundoc(m, name)
-
-    def summarize(self, verbose=None):
-        return self.testrunner.summarize(verbose)
-
-    def merge(self, other):
-        self.testrunner.merge(other.testrunner)
-
-######################################################################
-## 8. Unittest Support
+## 7. Unittest Support
 ######################################################################
 
 _unittest_reportflags = 0
@@ -2393,7 +2327,7 @@ def DocFileSuite(*paths, **kw):
     return suite
 
 ######################################################################
-## 9. Debugging Support
+## 8. Debugging Support
 ######################################################################
 
 def script_from_examples(s):
@@ -2546,7 +2480,7 @@ def debug(module, name, pm=False):
     debug_script(testsrc, pm, module.__dict__)
 
 ######################################################################
-## 10. Example Usage
+## 9. Example Usage
 ######################################################################
 class _TestClass:
     """

Lib/test/test_doctest.py

@@ -2285,132 +2285,6 @@ using the optional keyword argument `encoding`:
     >>> doctest.master = None  # Reset master.
 """
 
-# old_test1, ... used to live in doctest.py, but cluttered it.  Note
-# that these use the deprecated doctest.Tester, so should go away (or
-# be rewritten) someday.
-
-# Ignore all warnings about the use of class Tester in this module.
-# Note that the name of this module may differ depending on how it's
-# imported, so the use of __name__ is important.
-warnings.filterwarnings("ignore", "class Tester", DeprecationWarning,
-                        __name__, 0)
-
-def old_test1(): r"""
->>> from doctest import Tester
->>> t = Tester(globs={'x': 42}, verbose=0)
->>> t.runstring(r'''
-...      >>> x = x * 2
-...      >>> print(x)
-...      42
-... ''', 'XYZ')
-**********************************************************************
-Line 3, in XYZ
-Failed example:
-    print(x)
-Expected:
-    42
-Got:
-    84
-TestResults(failed=1, attempted=2)
->>> t.runstring(">>> x = x * 2\n>>> print(x)\n84\n", 'example2')
-TestResults(failed=0, attempted=2)
->>> t.summarize()
-**********************************************************************
-1 items had failures:
-   1 of   2 in XYZ
-***Test Failed*** 1 failures.
-TestResults(failed=1, attempted=4)
->>> t.summarize(verbose=1)
-1 items passed all tests:
-   2 tests in example2
-**********************************************************************
-1 items had failures:
-   1 of   2 in XYZ
-4 tests in 2 items.
-3 passed and 1 failed.
-***Test Failed*** 1 failures.
-TestResults(failed=1, attempted=4)
-"""
-
-def old_test2(): r"""
-        >>> from doctest import Tester
-        >>> t = Tester(globs={}, verbose=1)
-        >>> test = r'''
-        ...    # just an example
-        ...    >>> x = 1 + 2
-        ...    >>> x
-        ...    3
-        ... '''
-        >>> t.runstring(test, "Example")
-        Running string Example
-        Trying:
-            x = 1 + 2
-        Expecting nothing
-        ok
-        Trying:
-            x
-        Expecting:
-            3
-        ok
-        0 of 2 examples failed in string Example
-        TestResults(failed=0, attempted=2)
-"""
-
-def old_test3(): r"""
-        >>> from doctest import Tester
-        >>> t = Tester(globs={}, verbose=0)
-        >>> def _f():
-        ...     '''Trivial docstring example.
-        ...     >>> assert 2 == 2
-        ...     '''
-        ...     return 32
-        ...
-        >>> t.rundoc(_f)  # expect 0 failures in 1 example
-        TestResults(failed=0, attempted=1)
-"""
-
-def old_test4(): """
-        >>> import types
-        >>> m1 = types.ModuleType('_m1')
-        >>> m2 = types.ModuleType('_m2')
-        >>> test_data = \"""
-        ... def _f():
-        ...     '''>>> assert 1 == 1
-        ...     '''
-        ... def g():
-        ...    '''>>> assert 2 != 1
-        ...    '''
-        ... class H:
-        ...    '''>>> assert 2 > 1
-        ...    '''
-        ...    def bar(self):
-        ...        '''>>> assert 1 < 2
-        ...        '''
-        ... \"""
-        >>> exec(test_data, m1.__dict__)
-        >>> exec(test_data, m2.__dict__)
-        >>> m1.__dict__.update({"f2": m2._f, "g2": m2.g, "h2": m2.H})
-
-        Tests that objects outside m1 are excluded:
-
-        >>> from doctest import Tester
-        >>> t = Tester(globs={}, verbose=0)
-        >>> t.rundict(m1.__dict__, "rundict_test", m1)  # f2 and g2 and h2 skipped
-        TestResults(failed=0, attempted=4)
-
-        Once more, not excluding stuff outside m1:
-
-        >>> t = Tester(globs={}, verbose=0)
-        >>> t.rundict(m1.__dict__, "rundict_test_pvt")  # None are skipped.
-        TestResults(failed=0, attempted=8)
-
-        The exclusion of objects from outside the designated module is
-        meant to be invoked automagically by testmod.
-
-        >>> doctest.testmod(m1, verbose=False)
-        TestResults(failed=0, attempted=4)
-"""
-
 ######################################################################
 ## Main
 ######################################################################