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What are some common uses for Python decorators? [closed]
...ading
lock = threading.Lock()
@synchronized(lock)
def do_something():
# etc
@synchronzied(lock)
def do_something_else():
# etc
Basically it just puts lock.acquire() / lock.release() on either side of the function call.
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What is the “assert” function?
... 2015, the assert with an error message will not work because it is out of order. It should be assert("error message", expression)
– Dooskington
Oct 14 '16 at 15:37
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Convert MySQL to SQlite [closed]
...ses them to mysqldump, so you can find out about configuring custom ports, etc with man mysql or man mysqldump
– Devin Howard
Oct 27 '15 at 4:47
2
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Set icon for Android application
...rator file 2) Upload the file 3) Play with settings on website for padding/etc 4) Copy "res" file from .zip from site, paste it in IntelliJ and select "Overwrite Files"
– pfrank
Dec 19 '13 at 16:33
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Is Tomcat running?
...k the health of your tomcat. If you have a diagnostics page with user load etc, you could fetch it periodically and parse it to determine if anything is going wrong.
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Finding the index of an item in a list
...omplexity in list length
An index call checks every element of the list in order, until it finds a match. If your list is long, and you don't know roughly where in the list it occurs, this search could become a bottleneck. In that case, you should consider a different data structure. Note that if yo...
Convert command line arguments into an array in Bash
... [for] without [in] will loop over arguments array $@ ($1,$2, etc.). Which can be set also with [set] command, for example set -- arg1 arg2
– Nahuel Fouilleul
Sep 28 '16 at 9:14
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...m
def reader():
"""A generator that fakes a read from a file, socket, etc."""
for i in range(4):
yield '<< %s' % i
def reader_wrapper(g):
# Manually iterate over data produced by reader
for v in g:
yield v
wrap = reader_wrapper(reader())
for i in wrap:
pr...
A worthy developer-friendly alternative to PayPal [closed]
...ndly
REST APIs
Support for all mayor tender types (CC, DC, Gift, ACH, Lec, etc)
Support for all mayor card companies (even European ones)
Many different service plans that adapt to many needs (flat subscription, per transaction volume, per dollar volume, etc)
http://www.firstdata.com
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mongo - couldn't connect to server 127.0.0.1:27017
...hout preserving the original files
To find where you dbpath resides- vim /etc/mongodb.conf
check for option dbpath=
(I have dbpath=/var/lib/mongodb)
Default: /data/db/
Typical locations include: /srv/mongodb, /var/lib/mongodb or /opt/mongodb .
Replace the /var/lib/mongodb with your dbpath
sud...