En Mon, 19 Feb 2007 19:47:26 -0300, Nathan <[EMAIL PROTECTED]> escribió:
> Throughout my python development career, I've occasionally made
> various developer tools to show more information about assertions or
> exceptions with less hassle to the programmer. Until now, these tools
> didn't pass a utility vs pain-to-use threshold.
>
> Now I've created a tool I believe to have passed that threshold, which
> I call "binding annotated exception tracebacks". In short, this tool
> adds text showing relevant local bindings to each level in a stack
> trace print out.
Something very similar already exists in the standard library, but using a
very misleading name, "cgitb".
It works much better with a source file (so it can print source lines too)
=== begin tb.py ===
import cgitb
cgitb.enable(format="text")
def f(c):
d = 2*c
return g(c)
def g(x):
return (lambda z: z+'foo')(x)
f(42)
=== end tb.py ===
C:\TEMP>python tb.py
<type 'exceptions.TypeError'>
Python 2.5: c:\apps\python\python.exe
Mon Feb 19 22:27:26 2007
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
C:\TEMP\tb.py in <module>()
7
8 def g(x):
9 return (lambda z: z+'foo')(x)
10
11 f(42)
f = <function f at 0x00AD89F0>
C:\TEMP\tb.py in f(c=42)
4 def f(c):
5 d = 2*c
6 return g(c)
7
8 def g(x):
global g = <function g at 0x00AD8A30>
c = 42
C:\TEMP\tb.py in g(x=42)
7
8 def g(x):
9 return (lambda z: z+'foo')(x)
10
11 f(42)
z undefined
x = 42
C:\TEMP\tb.py in <lambda>(z=42)
7
8 def g(x):
9 return (lambda z: z+'foo')(x)
10
11 f(42)
z = 42
x undefined
<type 'exceptions.TypeError'>: unsupported operand type(s) for +: 'int'
and 'str
'
The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "tb.py", line 11, in <module>
f(42)
File "tb.py", line 6, in f
return g(c)
File "tb.py", line 9, in g
return (lambda z: z+'foo')(x)
File "tb.py", line 9, in <lambda>
return (lambda z: z+'foo')(x)
TypeError: unsupported operand type(s) for +: 'int' and 'str'
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
