Preserve function/method identity in magic decorators

`decorator(call, func)` does `func.__doc__ = call.__doc__` and so on, where `func` is the original function and `call = lambda f, *a, **k: f(*a, **k)`. Because of that ipdoctest is not able to see the function original docstring, leading to missing tests. The resulting wrapper is simply calling the original function and thus is not needed.

IPython/core/magic.py

@@ -20,7 +20,6 b' from traitlets.config.configurable import Configurable'
 from . import oinspect
 from .error import UsageError
 from .inputtransformer2 import ESC_MAGIC, ESC_MAGIC2
-from decorator import decorator
 from ..utils.ipstruct import Struct
 from ..utils.process import arg_split
 from ..utils.text import dedent
@@ -184,20 +183,18 b' def _method_magic_marker(magic_kind):'
     # This is a closure to capture the magic_kind.  We could also use a class,
     # but it's overkill for just that one bit of state.
     def magic_deco(arg):
-        call = lambda f, *a, **k: f(*a, **k)
-
         if callable(arg):
             # "Naked" decorator call (just @foo, no args)
             func = arg
             name = func.__name__
-            retval = decorator(call, func)
+            retval = arg
             record_magic(magics, magic_kind, name, name)
         elif isinstance(arg, str):
             # Decorator called with arguments (@foo('bar'))
             name = arg
             def mark(func, *a, **kw):
                 record_magic(magics, magic_kind, name, func.__name__)
-                return decorator(call, func)
+                return func
             retval = mark
         else:
             raise TypeError("Decorator can only be called with "
@@ -217,8 +214,6 b' def _function_magic_marker(magic_kind):'
     # This is a closure to capture the magic_kind.  We could also use a class,
     # but it's overkill for just that one bit of state.
     def magic_deco(arg):
-        call = lambda f, *a, **k: f(*a, **k)
-
         # Find get_ipython() in the caller's namespace
         caller = sys._getframe(1)
         for ns in ['f_locals', 'f_globals', 'f_builtins']:
@@ -236,13 +231,13 b' def _function_magic_marker(magic_kind):'
             func = arg
             name = func.__name__
             ip.register_magic_function(func, magic_kind, name)
-            retval = decorator(call, func)
+            retval = arg
         elif isinstance(arg, str):
             # Decorator called with arguments (@foo('bar'))
             name = arg
             def mark(func, *a, **kw):
                 ip.register_magic_function(func, magic_kind, name)
-                return decorator(call, func)
+                return func
             retval = mark
         else:
             raise TypeError("Decorator can only be called with "

IPython/core/magics/basic.py

@@ -74,6 +74,7 b' class BasicMagics(Magics):'
     These are various magics that don't fit into specific categories but that
     are all part of the base 'IPython experience'."""
 
+    @skip_doctest
     @magic_arguments.magic_arguments()
     @magic_arguments.argument(
         '-l', '--line', action='store_true',

IPython/core/magics/config.py

@@ -54,44 +54,73 b' class ConfigMagics(Magics):'
 
             In [1]: %config
             Available objects for config:
-                TerminalInteractiveShell
-                HistoryManager
-                PrefilterManager
                 AliasManager
-                IPCompleter
                 DisplayFormatter
+                HistoryManager
+                IPCompleter
+                LoggingMagics
+                MagicsManager
+                OSMagics
+                PrefilterManager
+                ScriptMagics
+                TerminalInteractiveShell
 
         To view what is configurable on a given class, just pass the class
         name::
 
             In [2]: %config IPCompleter
-            IPCompleter options
-            -----------------
-            IPCompleter.omit__names=<Enum>
-                Current: 2
-                Choices: (0, 1, 2)
-                Instruct the completer to omit private method names
-                Specifically, when completing on ``object.<tab>``.
-                When 2 [default]: all names that start with '_' will be excluded.
-                When 1: all 'magic' names (``__foo__``) will be excluded.
-                When 0: nothing will be excluded.
-            IPCompleter.merge_completions=<CBool>
+            IPCompleter(Completer) options
+            ----------------------------
+            IPCompleter.backslash_combining_completions=<Bool>
+                Enable unicode completions, e.g. \\alpha<tab> . Includes completion of latex
+                commands, unicode names, and expanding unicode characters back to latex
+                commands.
                 Current: True
-                Whether to merge completion results into a single list
-                If False, only the completion results from the first non-empty
-                completer will be returned.
-            IPCompleter.limit_to__all__=<CBool>
+            IPCompleter.debug=<Bool>
+                Enable debug for the Completer. Mostly print extra information for
+                experimental jedi integration.
+                Current: False
+            IPCompleter.greedy=<Bool>
+                Activate greedy completion
+                        PENDING DEPRECTION. this is now mostly taken care of with Jedi.
+                        This will enable completion on elements of lists, results of function calls, etc.,
+                        but can be unsafe because the code is actually evaluated on TAB.
                 Current: False
+            IPCompleter.jedi_compute_type_timeout=<Int>
+                Experimental: restrict time (in milliseconds) during which Jedi can compute types.
+                        Set to 0 to stop computing types. Non-zero value lower than 100ms may hurt
+                        performance by preventing jedi to build its cache.
+                Current: 400
+            IPCompleter.limit_to__all__=<Bool>
+                DEPRECATED as of version 5.0.
                 Instruct the completer to use __all__ for the completion
                 Specifically, when completing on ``object.<tab>``.
                 When True: only those names in obj.__all__ will be included.
                 When False [default]: the __all__ attribute is ignored
-            IPCompleter.greedy=<CBool>
                 Current: False
-                Activate greedy completion
-                This will enable completion on elements of lists, results of
-                function calls, etc., but can be unsafe because the code is
-                actually evaluated on TAB.
+            IPCompleter.merge_completions=<Bool>
+                Whether to merge completion results into a single list
+                        If False, only the completion results from the first non-empty
+                        completer will be returned.
+                Current: True
+            IPCompleter.omit__names=<Enum>
+                Instruct the completer to omit private method names
+                        Specifically, when completing on ``object.<tab>``.
+                        When 2 [default]: all names that start with '_' will be excluded.
+                        When 1: all 'magic' names (``__foo__``) will be excluded.
+                        When 0: nothing will be excluded.
+                Choices: any of [0, 1, 2]
+                Current: 2
+            IPCompleter.profile_completions=<Bool>
+                If True, emit profiling data for completion subsystem using cProfile.
+                Current: False
+            IPCompleter.profiler_output_dir=<Unicode>
+                Template for path at which to output profile data for completions.
+                Current: '.completion_profiles'
+            IPCompleter.use_jedi=<Bool>
+                Experimental: Use Jedi to generate autocompletions. Default to True if jedi
+                is installed.
+                Current: True
 
         but the real use is in setting values::
 
@@ -118,7 +147,7 b' class ConfigMagics(Magics):'
             # print available configurable names
             print("Available objects for config:")
             for name in classnames:
-                print("    ", name)
+                print("   ", name)
             return
         elif line in classnames:
             # `%config TerminalInteractiveShell` will print trait info for

IPython/core/magics/script.py

@@ -304,6 +304,8 b' class ScriptMagics(Magics):'
             # in case it's stuck in uninterruptible sleep. -9 = SIGKILL
             rc = p.returncode or -9
             raise CalledProcessError(rc, cell)
+
+    shebang.__skip_doctest__ = os.name != "posix"
     
     def _run_script(self, p, cell, to_close):
         """callback for running the script in the background"""

IPython/core/tests/test_interactiveshell.py

@@ -346,10 +346,15 b' class InteractiveShellTestCase(unittest.TestCase):'
             "A line magic"
 
         # Get info on line magic
-        lfind = ip._ofind('lmagic')
-        info = dict(found=True, isalias=False, ismagic=True,
-                    namespace = 'IPython internal', obj= lmagic.__wrapped__,
-                    parent = None)
+        lfind = ip._ofind("lmagic")
+        info = dict(
+            found=True,
+            isalias=False,
+            ismagic=True,
+            namespace="IPython internal",
+            obj=lmagic,
+            parent=None,
+        )
         self.assertEqual(lfind, info)
         
     def test_ofind_cell_magic(self):
@@ -360,10 +365,15 b' class InteractiveShellTestCase(unittest.TestCase):'
             "A cell magic"
 
         # Get info on cell magic
-        find = ip._ofind('cmagic')
-        info = dict(found=True, isalias=False, ismagic=True,
-                    namespace = 'IPython internal', obj= cmagic.__wrapped__,
-                    parent = None)
+        find = ip._ofind("cmagic")
+        info = dict(
+            found=True,
+            isalias=False,
+            ismagic=True,
+            namespace="IPython internal",
+            obj=cmagic,
+            parent=None,
+        )
         self.assertEqual(find, info)
 
     def test_ofind_property_with_error(self):

IPython/extensions/storemagic.py

@@ -17,6 +17,7 b' import inspect, os, sys, textwrap'
 
 from IPython.core.error import UsageError
 from IPython.core.magic import Magics, magics_class, line_magic
+from IPython.testing.skipdoctest import skip_doctest
 from traitlets import Bool
 
 
@@ -74,6 +75,7 b' class StoreMagics(Magics):'
         if self.autorestore:
             restore_data(self.shell)
 
+    @skip_doctest
     @line_magic
     def store(self, parameter_s=''):
         """Lightweight persistence for python variables.
@@ -82,6 +84,7 b' class StoreMagics(Magics):'
 
           In [1]: l = ['hello',10,'world']
           In [2]: %store l
+          Stored 'l' (list)
           In [3]: exit
 
           (IPython session is closed and started again...)

IPython/terminal/magics.py

@@ -11,6 +11,7 b' import sys'
 from IPython.core.error import TryNext, UsageError
 from IPython.core.magic import Magics, magics_class, line_magic
 from IPython.lib.clipboard import ClipboardEmpty
+from IPython.testing.skipdoctest import skip_doctest
 from IPython.utils.text import SList, strip_email_quotes
 from IPython.utils import py3compat
 
@@ -83,6 +84,7 b' class TerminalMagics(Magics):'
         self.shell.set_autoindent()
         print("Automatic indentation is:",['OFF','ON'][self.shell.autoindent])
 
+    @skip_doctest
     @line_magic
     def cpaste(self, parameter_s=''):
         """Paste & execute a pre-formatted code block from clipboard.