Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #61752
| Date | 2013-12-12 15:40 -0500 |
|---|---|
| Subject | Code suggestion - List comprehension |
| From | Shyam Parimal Katti <spk265@nyu.edu> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.4021.1386882662.18130.python-list@python.org> (permalink) |
[Multipart message — attachments visible in raw view] - view raw
Hello,
I have a list of sql queries, some which are split across multiple list
elements e.x.
['drop table sample_table;', 'create table sample_test', '(col1 int);',
'select col1 from', ' sample_test;']
A semi-colon in the string value indicates the termination of a sql query.
So the expected out come is a conversion to a list of valid sql queries:
['drop table sample_table;', 'create table sample_test (col1 int);',
'select col1 from sample_test;']
Here is the code that does that:
sample = ['drop table sample_table;', 'create table sample_test', '(col1
int);', 'select col1 from', ' sample_test;']
pure_sqls = []
query_holder= ''
for each_line in sample:
query_holder += each_line
if query_holder.endswith(';'):
pure_sqls.append(query_holder)
query_holder = ''
Is there a way to do this by eliminating explicit creation of new
list(pure_sqls) and a temporary variable(query_holder)? Using list
comprehension? Though I don't want to put the shorter version in
production(if it is difficult to understand), I am looking if this can be
done with list comprehension since I am trying to learn list comprehension
by using it in such scenarios.
Back to comp.lang.python | Previous | Next | Find similar | Unroll thread
Code suggestion - List comprehension Shyam Parimal Katti <spk265@nyu.edu> - 2013-12-12 15:40 -0500
csiph-web