jameskane
asked on
Python 3.4 List manipulation
Hi, I have a list which contains unique and identical sub lists randomly dispersed across the list . There is no limit on the number of identical sub lists which may exist, and they are not necessarily clustered together.
All sub lists have 1 as their first element - which acts as a counter. So, if there are, 3 identical sub lists [1,9,12] - these three sub lists would be replaced by a single sub list [3,9,12]
example
MYLIST = [ [1,9,12], [1, 6, 12], [1, 5, 5], [1, 8, 32], [1, 5, 5], [1,9,12], [1,9,12] ]
MYLIST_Converted = [[3,9,12], [1, 6, 12], [2, 5, 5], [1, 8, 32]]
Can someone give me a sense of how best to approach this. Been trying for a couple of days without success.
Thanks.
All sub lists have 1 as their first element - which acts as a counter. So, if there are, 3 identical sub lists [1,9,12] - these three sub lists would be replaced by a single sub list [3,9,12]
example
MYLIST = [ [1,9,12], [1, 6, 12], [1, 5, 5], [1, 8, 32], [1, 5, 5], [1,9,12], [1,9,12] ]
MYLIST_Converted = [[3,9,12], [1, 6, 12], [2, 5, 5], [1, 8, 32]]
Can someone give me a sense of how best to approach this. Been trying for a couple of days without success.
Thanks.
Last Comment
kaufmed
Is this school work?
ASKER
Its hobby work for an old retired guy !! Promise !
I'm trying to convert an old Coldfusion application I did for the local art school.
I'm trying to convert an old Coldfusion application I did for the local art school.
ASKER
kaufmed, see cannes-beaux-arts.com ... see right hand side, middle for my name on site for art school
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ASKER
INGENIOUS !!!!
works perfectly.
Went through code and learned a lot - thanks for that also.
The only bit I am struggling to understand are the last two lines
if __name__ == '__main__':
main()
If you have a minute, could you send me a few words / pointer of explanation ?
Many thanks
works perfectly.
Went through code and learned a lot - thanks for that also.
The only bit I am struggling to understand are the last two lines
if __name__ == '__main__':
main()
If you have a minute, could you send me a few words / pointer of explanation ?
Many thanks
you don't need to package your code this way. You can put all of the main function code into your module as is.
Python
Python is a widely used general-purpose, high-level programming language. Its design philosophy emphasizes code readability, and its syntax allows programmers to express concepts in fewer lines of code than would be possible in other languages. Python supports multiple programming paradigms, including object-oriented, imperative and functional programming or procedural styles. It features a dynamic type system and automatic memory management and has a large and comprehensive set of standard libraries, including NumPy, SciPy, Django, PyQuery, and PyLibrary.
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