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Single vs Double quotes (' vs ")
...ften consists of many programming languages. HTML, JS, CSS, PHP, ASP, RoR, Python, ect. Because of this we have many syntax conventions for different programing languages. Often habbits from one language will follow us to other languages, even if it is not considered "proper" i.e. commenting convent...
Representing null in JSON
...({}) or an empty list ([]) are perfectly fine, but aren't null either.
In Python:
>>> print json.loads('{"key1":null}')
{u'key1': None}
>>> print json.loads('[null]')
[None]
>>> print json.loads('[]')
[]
>>> print json.loads('{}')
{}
>>> print json.load...
How can I drop all the tables in a PostgreSQL database?
...;
COMMENT ON SCHEMA public
IS 'standard public schema';
For me using a python web framework which creates database tables (web2py), using the former caused problems:
<class 'psycopg2.ProgrammingError'> no schema has been selected to create in
So to my mind the fully correct answer is:
...
ipython notebook clear cell output in code
In a iPython notebook, I have a while loop that listens to a Serial port and print the received data in real time.
3 Answ...
I want to exception handle 'list index out of range.'
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beware of the tab, Python 3
– Gouled Med
Jun 21 '16 at 12:19
add a comment
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read.csv warning 'EOF within quoted string' prevents complete reading of file
... Could you please write a line as to why you need to add that. (I am a Python programmer trying to learn R). Otherwise the answer is perfect(+1)
– Bhargav Rao♦
Jul 2 '15 at 16:40
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Sell me on const correctness
...of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that said, here are a few questions:
...
Best way to test SQL queries [closed]
...gible view names? Why should SQL be less self-documenting or readable than Python?
– snl
Jun 27 '17 at 15:52
1
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What is Node.js? [closed]
...Script) on a VM that is incredibly fast (V8). It is much faster than Ruby, Python, or Perl.
Ability to handle thousands of concurrent connections with minimal overhead on a single process.
JavaScript is perfect for event loops with first class function objects and closures. People already know how t...
Why do people hate SQL cursors so much? [closed]
... there was no notion of "collection" that could be used widely. Java, C#, Python, etc., have first-class list structures to contain result sets.
The Slow Issue
In some circles, the relational joins are a mystery, and folks will write nested cursors rather than a simple join. I've seen truly epic...