On 1/8/2010 3:56 PM, Steven D'Aprano wrote:
Unfortunately this won't do what you expect, because sys.ps1 and ps2
should be either strings, or objects with a __str__ method. They aren't
called to generate the prompt.
but their __str__ does get called to generate the prompt.
import sys
class kbInterfaceHelper(object):
def __init__(self, str_func):
self.str_func = str_func
def __str__(self):
return self.str_func()
class kbInterface(object):
def __init__(self):
self.count = 0
def prompt1(self):
self.count += 1
return "[%d]> " % self.count
def prompt2(self):
l = len(str(self.count))+1
return "%s " % "."*l
def dhook(self, value):
print "[%d out]" % self.count
def ehook(self, type, value, trace):
print "[%d err]\n" % value
kbi = kbInterface()
sys.ps1 = kbInterfaceHelper(kbi.prompt1)
sys.ps2 = kbInterfaceHelper(kbi.prompt2)
sys.displayhook = kbi.dhook
sys.excepthook = kbi.ehook
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