Use OrderedDict in Python 27

[Exygo 1060]

Hello Metin2Dev users, this topic is meant to teach you how to use OrderedDict in Python

Requirements:

• python 2.7

 

A little example with the default dictionary

this_is_my_dict = {"key1" : 1,"key2" : 2,"key3" : 3,"key4" : 4}

for key in this_is_my_dict:

    print key

 

The result of this little example will be something like th is:

key3

key2

key1

key4

They are not in order (1,2,3,4)

So if you want them to be in order the code should be like this:

from collections import OrderedDict

this_is_my_dict=OrderedDict()

this_is_my_dict["key1"]=1

this_is_my_dict["key2"]=2

this_is_my_dict["key3"]=3

this_is_my_dict["key4"]=4

for key in this_is_my_dict:

    print key

And now the output will be this:

key1

key2

key3

key4

[alondark 58]

What Is This Exactly

[Exygo 1060]

It's an ordered dictionary in python, normally when you loop through a dict the keys inside the dict are not being taken in order.

[Night 364]

dict does not store the original order of the item that were stored in it. (dict is pretty much like std::map in c++) (http://stackoverflow.com/questions/11274978/are-c-stdmapstring-string-ordered <- this will help you a bit , it's a bit off topic but if you are a c++ dev it can help you understand)

so python offer another class which is the collections.OrderedDict which quite useful. for iteration.

say :

list(dict()) , will return a list which contain the keys of the dict() without the original order.

list( collections.OrderedDict()) , will return a list whish contain the keys of the OrderedDict in their insertion order.

and as always it is useful for iteration. and some other rare cases.

there are other choices , but this is the first one google will point out.

[VegaS 1062]

I would prefer to work more nice.

List = [ ]
List = [
	[[ui.TextClass, 0], [0, 0], [x, y], [["SetDefaultFontName", [""]]], []],
	[[ui.ImageClass, ""], [0, 0], [x , y], [["LoadImage", ["image"]]], ["movable", "float"]],
]

	def SetText(self, index, msg = None):			
		self.List[0].SetText("Text" + msg)
		self.List[1].Show()

 

	self.List = [
		{"name": "A", "number": 1},
		{"name": "B", "number": 2},
	]
		
	self.Select = {}
	self.Select["A"] = self.Loader.Button(self.Board, 'A', '', 15, 50, self.Main, 'A', 'A', 'A')
	self.Select["B"] = self.Loader.Button(self.Board, 'B', '', 15, 50*2, self.Main, 'B', 'B', 'B')
		
	for i in xrange(len(self.List)):
		self.Select[self.List[i]["name"]].Show()

 

[Night 364]

29 minutes ago, VegaS said:

I would prefer to work more nice.

List = [ ]
List =
[
	[[ui.TextClass, 0], [0, 0], [x, y], [["SetDefaultFontName", [""]]], []],
	[[ui.ImageClass, ""], [0, 0], [x , y], [["LoadImage", ["image"]]], ["movable", "float"]],
]

	def SetText(self, index, msg = None):			
		self.List[0].SetText("Text" + msg)
		self.List[1].Show()

 

		self.List = [
			{"name": "A", "number": 1},
			{"name": "B", "number": 2},
		]
		
		self.Select = {}
		self.Select["A"] = self.Loader.Button(self.Board, 'A', '', 15, 50, self.Main, 'A', 'A', 'A')
		self.Select["B"] = self.Loader.Button(self.Board, 'B', '', 15, 50*2, self.Main, 'B', 'B', 'B')
		
		for i in xrange(len(self.List)):
			self.Select[self.List[i]["name"]].Show()

you used  a multidimensional array aka a list of lists , the first and second line of SetText will result in Attribute error exception to be raised.

your method might be correct depending on how you do it , but it will result in you having to wast more time.

for the List var you could use a tuple as it is a immutable (it does not change no matter what).

ex.

List = [ ]
List =
[
	[(ui.TextClass, 0), (0, 0), (x, y), (["SetDefaultFontName", [""]]), ()],
	[(ui.ImageClass, ""), (0, 0), (x , y), (["LoadImage", ["image"]]), ("movable", "float")],
]

metin2 does have it's own methods for dealing with UI , i highly recommend using it. (there are already over 50 example of it in uiscript and the locale dir of each client).

[VegaS 1062]

7 hours ago, Night said:

you used  a multidimensional array aka a list of lists , the first and second line of SetText will result in Attribute error exception to be raised.

your method might be correct depending on how you do it , but it will result in you having to wast more time.

for the List var you could use a tuple as it is a immutable (it does not change no matter what).

ex.

List = [ ]
List =
[
	[(ui.TextClass, 0), (0, 0), (x, y), (["SetDefaultFontName", [""]]), ()],
	[(ui.ImageClass, ""), (0, 0), (x , y), (["LoadImage", ["image"]]), ("movable", "float")],
]

metin2 does have it's own methods for dealing with UI , i highly recommend using it. (there are already over 50 example of it in uiscript and the locale dir of each client).

In much you were right about:

your method might be correct depending on how you do it , but it will result in you having to wast more time.

PS: For those who want another example to work more efficiently, feel free to forward your ideas.

List = {
	"selected"  : {
		0 : 0,
		1 : 0
	}
}
	self.m_nTCheckBox = {
		0	:	[uiModuleTest.CheckTable(self, x, x, lambda x = 0: self.SetArgument(x)), 0, self.SetText(x, y, "A")],
		1	:	[uiModuleTest.CheckTable(self, x, y, lambda x = 1: self.SetArgument(x)), 0, self.SetText(x, y, "B")],
	}	
	def SetArgument(self, x):
		for index in xrange(len(List["selected"])):
			if x == index:
				if List["selected"][x] > 0:
					self.m_nTCheckBox[x][0].AppendCheck(false)
					List["selected"][x] = 0
				else:
					self.m_nTCheckBox[x][0].AppendCheck(true)
					List["selected"][x] = 1

			chat.AppendChat(chat.CHAT_TYPE_INFO, "<Index selected> <Argument %d> <Check %d>" % int(x), int(List["selected"][index]))

 

[pollux 798]

any spam in here will now result in an instant warning! Please stay on track!