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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...s possible; if a connection is not available (wrong hostname, network down etc), the script will attempt to create the database and will fail with possibly confusing error message
– Oliver
Jan 12 at 14:43
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Android - Handle “Enter” in an EditText
...e thing as the onClick method for your Submit (or OK, Confirm, Send, Save, etc) button.
public boolean onEditorAction(TextView exampleView, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_NULL
&& event.getAction() == KeyEvent.ACTION_DOWN) {
example_confirm()...
What is the fastest way to send 100,000 HTTP requests in Python?
...and I found this to work the best for me using python3.6.
I was able to fetch about ~150 unique domains per second running on AWS.
import pandas as pd
import concurrent.futures
import requests
import time
out = []
CONNECTIONS = 100
TIMEOUT = 5
tlds = open('../data/sample_1k.txt').read().splitli...
What does -D_XOPEN_SOURCE do/mean?
...with the downside that it might not compile on Solaris, FreeBSD, Mac OS X, etc.
It's a good idea to check each man page before doing a #include, #define, or using a new function, because sometimes their behavior changes depending on what options and #defines you have, for example with basename(3).
...
Can I do a synchronous request with volley?
... a blocking Volley request
*
* @param method get/put/post etc
* @param url endpoint
* @param errorListener handles errors
* @return the input stream result or exception: NOTE returns null once the onErrorResponse listener has been called
*/
public I...
Can a C++ enum class have methods?
...nt, type_traits dependent code will not work, so e.g. one cannot use auto, etc. There may be some way of handling such stuff, but in the end one is converting an enum into a class, and it is always a mistake to subvert C++
the enum struct and enum class specifications are about scoping so not part...
Does Git Add have a verbose switch
...sole as it means a smaller tooling footprint if I ever need to change PCs, etc.
4 Answers
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How do you run a command for each line of a file?
...he indicated tool. But for some other applications, small amount of files, etc...
Read entire file as command line argument.
If your file is not too big and all files are well named (without spaces or other special chars like quotes), you could use shell command line expansion. Simply:
chmod 755...
When to create a new app (with startapp) in Django?
...services' app so developers can interface with the blog in their own ways, etc.
I personally would make the blog itself the app, and break out the functionality within it. The blog could then be reused rather easily in other websites.
The nice thing about Django is that it will recognize any model...
Proper way to handle multiple forms on one page in Django
...s? Like, with checking is_valid() from the first form, then the first two, etc… Maybe just have a handled = False that gets updated to True when a compatible form is found?
– binki
Jan 13 '16 at 22:31
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