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python Programming Glossary: my_listList filtering: list comprehension vs. lambda + filter http://stackoverflow.com/questions/3013449/list-filtering-list-comprehension-vs-lambda-filter it by an attribute of the items. My code looked like this my_list i for i in my_list if i.attribute value But then i thought wouldn't.. of the items. My code looked like this my_list i for i in my_list if i.attribute value But then i thought wouldn't it be better.. to write it like this filter lambda x x.attribute value my_list It's more readable and if needed for performance the lambda..
http://stackoverflow.com/questions/3480184/unpack-a-list-in-python how can I pass a Python list item without getting an error my_list 'red' 'blue' 'orange' function_that_needs_strings 'red' 'blue'.. 'red' 'blue' 'orange' # works function_that_needs_strings my_list # breaks Surely there must be a way to expand the list and pass.. share improve this question function_that_needs_strings my_list # works You can read all about here. share improve this answer..
http://stackoverflow.com/questions/364802/generator-comprehension and yields each item out of the expression one by one. my_list 1 3 5 9 2 6 filtered_list item for item in my_list if item 3.. by one. my_list 1 3 5 9 2 6 filtered_list item for item in my_list if item 3 print filtered_list 5 9 6 len filtered_list 3 # compare.. to generator expression ... filtered_gen item for item in my_list if item 3 print filtered_gen # notice it's a generator object..
Check if a Python list item contains a string inside another string http://stackoverflow.com/questions/4843158/check-if-a-python-list-item-contains-a-string-inside-another-string contains a string inside another string I have a list my_list 'abc 123' 'def 456' 'ghi 789' 'abc 456' and want to search for.. contain the string 'abc' . How can I do that if 'abc' in my_list would check if 'abc' exists in the list but it just exists 'abc..
Python join, why is it string.join(list) instead of list.join(string)? http://stackoverflow.com/questions/493819/python-join-why-is-it-string-joinlist-instead-of-list-joinstring has always confused me. It seems like this would be nicer my_list Hello world print my_list.join # Produce Hello world Than this.. seems like this would be nicer my_list Hello world print my_list.join # Produce Hello world Than this my_list Hello world print.. world print my_list.join # Produce Hello world Than this my_list Hello world print .join my_list # Produce Hello world Is there..
http://stackoverflow.com/questions/895371/bubble-sort-homework i 1 bad_list i Put it all together and you get this my_list 12 5 13 8 9 65 def bubble bad_list length len bad_list 1 sorted.. bad_list i bad_list i 1 bad_list i 1 bad_list i bubble my_list print my_list I removed your print statement too by the way... bad_list i 1 bad_list i 1 bad_list i bubble my_list print my_list I removed your print statement too by the way. share improve..
Iterate an iterator by chunks (of n) in Python? http://stackoverflow.com/questions/8991506/iterate-an-iterator-by-chunks-of-n-in-python on sequences but does handle the last chunk as desired is my_list i i chunk_size for i in range 0 len my_list chunk_size Finally.. as desired is my_list i i chunk_size for i in range 0 len my_list chunk_size Finally a solution that works on general iterators..
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