Fernando,
I just implemented "??" source code introspection for Pyrex-defined
function for SAGE.
E.g., one can now do this:
sage: n = Mod(3,7) # a Pyrex extension class
sage: n.is_zero??
Type: builtin_function_or_method
Base Class: <type 'builtin_function_or_method'>
String Form: <built-in method is_zero of
sage.rings.integer_mod.IntegerMod_int object at 0x8cb0440>
Namespace: Interactive
Source:
File:
/Volumes/HOME/s/local/lib/python/site-packages/sage/rings/integer_mod.pyx
def is_zero(IntegerMod_int self):
"""
Returns \\code{True} if this is $0$, otherwise \\code{False}.
EXAMPLES:
sage: mod(13,5).is_zero()
False
sage: mod(25,5).is_zero()
True
"""
return bool(self.ivalue == 0)
---------------
Unfortunately, it is necessary to very slightly modify IPython. In
particular,
currently there is currently no analgoue of
IPython.OInspect.getdoc = my_getdoc
for getting the source file. I.e., I want to be able to do something like
IPython.OInspect.inspect_getsource = my_getsource
Unfortunately, IPython gets source very deeply in very big functions by
calling inspect.getsource, but I shouldn't reassign inspect.getsource.
Instead, if you replace your calls to inspect.getsource with calls to a
function
inspect_getsource, IPython works exactly as before, except it's possible to
reassign at startup how IPython gets source of an object.
Here's a udiff that does it.
diff -r c08d68b9bc57 OInspect.py
--- a/OInspect.py Wed Oct 25 02:33:13 2006 -0500
+++ b/OInspect.py Wed Oct 25 02:33:33 2006 -0500
@@ -37,6 +37,9 @@ from IPython.Itpl import itpl
from IPython.Itpl import itpl
from IPython.wildcard import list_namespace
from IPython.ColorANSI import *
+
+def inspect_getsource(x):
+ return inspect.getsource(x)
#****************************************************************************
# HACK!!! This is a crude fix for bugs in python 2.3's inspect module. We
@@ -262,11 +265,12 @@ class Inspector:
# Flush the source cache because inspect can return out-of-date
source
linecache.checkcache()
try:
- src = inspect.getsource(obj)
+ src = inspect_getsource(obj)
except:
self.noinfo('source',oname)
else:
page(self.format(src))
+
def pfile(self,obj,oname=''):
"""Show the whole file where an object was defined."""
@@ -402,11 +406,10 @@ class Inspector:
linecache.checkcache()
source_success = False
try:
- if not binary_file:
- source = self.format(inspect.getsource(obj))
- out.write(header('Source:\n')+source.rstrip())
- source_success = True
- except:
+ source = self.format(inspect_getsource(obj))
+ out.write(header('Source:\n')+source.rstrip())
+ source_success = True
+ except Exception, msg:
pass
if ds and not source_success:
--~--~---------~--~----~------------~-------~--~----~
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-~----------~----~----~----~------~----~------~--~---
