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Format number to always show 2 decimal places
...due to rounding errors. I tested this with 1.005, which should round to 1.01, but it gives 1.00. Use my answer for consistent accuracy: stackoverflow.com/a/34796988/3549440.
– Nate
Jan 14 '16 at 18:39
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psycopg2: insert multiple rows with one query
...'.join(['%s'] * len(data))
insert_query = 'insert into t (a, b) values {}'.format(records_list_template)
cursor.execute(insert_query, data)
Explanation: If the data to be inserted is given as a list of tuples like in
data = [(1,'x'), (2,'y')]
then it is already in the exact required format as
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How to manually set an authenticated user in Spring Security / SpringMVC
After a new user submits a 'New account' form, I want to manually log that user in so they don't have to login on the subsequent page.
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Is there a difference between /\s/g and /\s+/g?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...nd all words beginning with 'a' or 'axe' so on.
A suffix tree is a special form of a tree. Suffix trees have a whole list of advantages that hash cannot cover.
share
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improve this answer
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How to copy commits from one branch to another?
...from one SVN branch to another, I ended up cherry-picking them and then performing an interactive rebase/reword to remove the incorrect git-svn-id references before dcommiting again. Though I probably could have left out the cherry-pick step and just used a rebase by itself.
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Get current time in seconds since the Epoch on Linux, Bash
... the date manpge should be changed from %s seconds since 1970-01-01 00:00:00 UTC to %s seconds since the epoch, 1970-01-01 00:00:00 UTC because I missed it in there.
– devin
Nov 18 '11 at 19:17
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Linux: copy and create destination dir if it does not exist
...vocation.html#cp-invocation or with info cp or man cp):
--parents
Form the name of each destination file by appending to the target
directory a slash and the specified name of the source file. The
last argument given to `cp' must be the name of an existing
directory. For ex...
How do I escape double quotes in attributes in an XML String in T-SQL?
...t folks know that " works very well for the xml config files when forming regex expressions for RegexTransformer in Solr like so: regex=".*img src="(.*)".*" using the escaped version instead of double-quotes.
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What is the best way to exit a function (which has no return value) in python before the function en
...eturn
do much much more...
or raise an exception if you want to be informed of the problem
def foo(element):
do something
if check is true:
do more (because check was succesful)
else:
raise Exception("cause of the problem")
do much much more...
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