[JOM]

Sorry for quick question: I have a generated enum, need to use it "automatically" for python code. How to do it most automatically? Yep, manually it takes less than 5 minutes, but I really would like to automate this process. Less debugging to be done afterwards

// kredit.h
// Generated by BitmapCompiler
// Copyright (c) 1998-2001 Symbian Ltd.  All rights reserved.
//

enum TMbmKredit
	{
	EMbmKreditMask,
	EMbmKreditEu
	};

Right now it's only 2 items and I'm using it successfully. Next version will have 20+ items, for testing something more. Then first released version could have about 100 and finally almost 300 items. Debugging is not fun, so any tips about how to use enum inside python code would be most welcome!

Cheers,

--jouni

[igordsm]

Why don't you use a dictionary? you could store the values of your var there.

If you want something more C-like, I found this on google:
http://code.activestate.com/recipes/67107/

[mikezs]

I use this so I can copy and paste C++ enums into it:

import re

#Enum class for c++ style enums
#
# Inherit from object to create a 'new style' class
class Enum(object):
	_values = {} # Store our names/values
	_exp = re.compile(r'(([a-zA-Z][0-9a-zA-Z]+)\s*(=\s*((0x)?-?[0-9]+))?)', re.S)

	def __init__(self, enum):
		self._parse(enum)

	def _parse(self, enumdata):
		matches = self._exp.findall(enumdata)
		cur = 0
		for match in matches:
			name = match[1]
			value = match[3]
			if not value == '':
				value = int(value, 0) # Using a 0 radix makes python guess it
				cur = value
			self._values[name] = cur
			cur += 1

	# Where the magic happens!
	# This intercepts _all_ attribute requests
	def __getattribute__(self, attr):
		if not attr.startswith('_'): # If variable isn't private
			return self._values[attr] # Get it from our dictionary
		else:
			return super(Enum, self).__getattribute__(attr) # Otherwise get it from our class

	# This is a luxury function to allow iterating
	def __len__(self):
		return len(self._values)

Then you can just do this:

TMbmKredit = Enum ("""
	EMbmKreditMask=5,
	EMbmKreditEu
	""")
print TMbmKredit.EMbmKreditMask #5
print TMbmKredit.EMbmKreditEu #6

Looks pretty tidy-ish too

Edit: Seeing as I just wrote it, I've updated it since originally posting!

[JOM]

Originally Posted by mikezs

I use this so I can copy and paste C++ enums into it:
...
Then you can just do this:

TMbmKredit = Enum ("""
	EMbmKreditMask=5,
	EMbmKreditEu
	""")
print TMbmKredit.EMbmKreditMask #5
print TMbmKredit.EMbmKreditEu #6

Looks pretty tidy-ish too

This looks pretty much what I was looking for, just drag and drop enum into python code and it just works! Thanx, I'll save this into my archives!

...however this time I'll just do some boring excel stuff to manually convert enum to python code. I need it to update listbox icons and I figure faster version should be preferable - even if it's not as nice looking as your code!

Thanx,

--jouni who's thinking how things really should be timed instead of just deciding which is faster code

[miohtama]

Originally Posted by mikezs

I use this so I can copy and paste C++ enums into it:

import re

	def __init__(self, enum):
		self._parse(enum)

I suggest you use lazy initialization design pattern here, since running code during import is the major fact affecting Python application start up speed.

[JOM]

Originally Posted by miohtama

I suggest you use lazy initialization design pattern here, since running code during import is the major fact affecting Python application start up speed.

I noticed! Current implementation is built-in hardcoded dictionary and list, both only some 100+ items, and startup is too slow. Second launch is much faster for some reason.. Is emulator doing some graphics icon caching?

Have to think about lazy init...

Cheers,

--jouni