Hi
There are many different ways to solve the problem that you are having. The easiest if you are planning on only dealing with strings or a predictable data structure would be to do something like this:
Code:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#Pre: Pass in a string and the character you want it tokenized by
#Post: Returns a list of all the tokens
def tokenizer(str, chr=' '): #heres a useful tool just like StringTokenizer feature in Java
if chr != '': chr = chr[0]
else: chr = ' '
x = ""
tokens = [""]
z = 0
for x in str:
if x != chr:
tokens[z] = tokens[z] + x
else:
z = z + 1
tokens.append("")
return tokens
list = ['abc', 'def', 'xyz']
str = ''
for x in list:
str+=list+'.' #note this is a delimiter could be anything, if you wanted to you could re-implement the above function to work with delimiters of any length not just length 1
#save the str
#load str a loadedStr
loadedList = tokenizer(loadedStr, '.')
#loadedList = ['abc', 'def', 'xyz'] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
that is one way too solve your problem
another is to use some sort of real database structure, for simplicity, you could use XML
example xml structure: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <list-element> <date_type>float</data_type> <value>3.14</value> <element_number>0</element_number> </list-element> <list-element> <date_type>int</data_type> <value>3</value> <element_number>1</element_number> </list-element> <list-element> <date_type>string</data_type> <value>Hi i am a string</value> <element_number>2</element_number> </list-element> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The first way to solve your problem is quick dirty and efficient. The XML version is highly scalable but requires a lot more code to implement. As mentioned before there are a number of other solutions to the same problem
--- Cheers Tim Henderson
original message: ----
The following code ############## import string MyList=['abc','def'] for i in MyList: print i ###############
works as I expect that is I get abc def
but when I have Mylist in a file and I read it from the file it does not work as I expect. ######### import string ff=open('C:\\Robotp\\MyFile.txt','r') # read MyList from a file MyList=ff.read() for i in MyList: print i ########### I will get [ ' a b c ' , ' d e f ' ]
where my MyFile.txt looks like this: ['abc','def']
Where is a problem? Thanks for help Lad
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