Re: How to convert a number to hex number?
Hi! Try hex: >>> hex(120) '0x78' Consider converting string -> int using the int()-function: >>> print int.__doc__ int(x[, base]) -> integer Convert a string or number to an integer, if possible. A floating point argument will be truncated towards zero (this does not include a string representation of a floating point number!) When converting a string, use the optional base. It is an error to supply a base when converting a non-string. If the argument is outside the integer range a long object will be returned instead. Daniel -- http://mail.python.org/mailman/listinfo/python-list
Re: iterate over class variables
Hi!
You can iterate over the internal dictionary:
>>> class Test:
... def __init__(self):
... self.x = 5
... self.y = 6
... self.z = "Hallo"
...
>>> x = Test()
>>> print x.__dict__
{'y': 6, 'x': 5, 'z': 'Hallo'}
>>> for key, value in x.__dict__.items():
... print key
... print value
...
y
6
x
5
z
Hallo
>>>
Consider using iteritems() instead of items() when you have a loop.
Hope that helps :)
Daniel
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Re: What do you use as symbols for Python ?
Hi!
Never would have thought of this...
I mixed this with the class-version and created a new class derived from
"str" for easier printing and added an iterator:
---
class Enum:
class Type(str):
def __init__(self, name):
self.__name = name
def __str__(self):
return self.__name
def __init__(self, *keys):
self.__keys = []
for key in keys:
mytype = self.Type(key)
self.__dict__[key] = mytype
self.__keys.append(mytype)
self.__index = -1
self.__count = len(keys)
def __iter__(self):
return self
def next(self):
self.__index = self.__index + 1
if (self.__index >= self.__count):
self.__index = -1
raise StopIteration
return self.__keys[self.__index]
friends = Enum("Eric", "Kyle", "Stan", "Kenny")
print "These are my friends:",
print ", ".join([kid for kid in friends])
for kid in friends:
print kid,
if kid is friends.Kenny:
print "dead"
else:
print "alive"
---
Daniel
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Re: Internal Variables
Hi! The sys module provides some useful information, e.g.: builtin_module_names -- tuple of module names built into this interpreter version -- the version of this interpreter as a string version_info -- version information as a tuple hexversion -- version information encoded as a single integer copyright -- copyright notice pertaining to this interpreter platform -- platform identifier executable -- pathname of this Python interpreter prefix -- prefix used to find the Python library exec_prefix -- prefix used to find the machine-specific Python library (from sys.__doc__) Maybe you can start searching there. Daniel -- http://mail.python.org/mailman/listinfo/python-list
Re: What do you use as symbols for Python ?
Peter Otten wrote:
>
> You should ditch what follows and instead add just
>
> def __iter__(self):
> return iter(self.__keys)
Mhh. I should start learning the builtins ... :)
> To see the problem with your original code (an object serving as its own
> iterator) try the following example:
>
> friends = Enum("Eric", "Kyle", "Stan", "Kenny")
> if "Kyle" in friends:
> print "Hi Kyle"
> print "My friends:", ", ".join(friends)
>
> Only Stan and Kenny show up in the last print statement because the
> containment test did not iterate over all friends.
Never would have thought of this... Makes it even easier.
> Also, Type.__name seems redundant. Just
>
> class Type(str): pass
>
> should do the job.
Right, works just fine. I'm not used to types, meanwhile I replaced
Type(str) by a simple class Type, works as well.
Thanks a lot, I was starting to integrate this solution in my code, now I
can fix it before it's even used :)
Daniel
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Re: combine doxygen and doc-strings?
You're maybe searching for epydoc: http://epydoc.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to determine an object is "scriptable"
Richard Brodie wrote: > subscriptable: supports an indexing operator, like a list does. Right. You can check this e.g. with hasattr(x, "__getitem__") because the __getitem__ method is used for indexing. Daniel -- http://mail.python.org/mailman/listinfo/python-list
