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Python Dictionary Comprehension
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The main purpose of a list comprehension is to create a new list based on another one without changing or destroying the original list.
Instead of writing
l = []
for n in range(1, 11):
l.append(n)
or
l = [n for n in range(1, 11)]
you should write only
l = r...
What is an Endpoint?
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Why not just call it (i.e. so called "endpoint") a "base URI"? Is there a fundamental difference between an "endpoint" and a "base URI"? Thanks.
– Withheld
Jul 28 '15 at 17:48
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Expand Python Search Path to Other Source
I have just joined a project with a rather large existing code base. We develop in linux and do not use and IDE. We run through the command line. I'm trying to figure out how to get python to search for the right path when I run project modules. For instance, when I run something like:
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Am I immoral for using a variable name that differs from its type only by case?
...et tripped up by being unable to discern between types and their instances based on this naming convention.
– Andrew Hare
Sep 14 '09 at 18:19
2
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Select parent element of known element in Selenium
...Close</span>
</a>
Now that you need to select parent tag 'a' based on <span> text, then use
driver.findElement(By.xpath("//a[.//span[text()='Close']]"));
Explanation: Select the node based on its child node's value
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How do I know the script file name in a Bash script?
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me=`basename "$0"`
For reading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try:
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
IMO, ...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
I'm working on getting my database to talk to my Java programs.
38 Answers
38
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SQL Server CTE and recursion example
...CT * FROM SupplierChain_CTE
Explanation:
The first CTE query returns the base suppliers (like leaves) who do not supply to any other supplier directly (-1)
The recursive query in the first iteration gets all the suppliers who supply to the suppliers returned by the ANCHOR.
This process continues ...
How can I convert a comma-separated string to an array?
...e you have elements in array, if you're expecting data from a server / database you will run into trouble since ''.split(',') has a length === 1 IE: ''.split(',') === ['']
– oportocala
Aug 2 '16 at 15:49
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What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...directories. Another issue with git is that has many operations (such as rebase) which make it easy to modify history (in a sense -- the content referred to by a hash will never change, but references to that hash may be lost); some purists (myself included) don't like that very much.
Bazaar is rea...