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What is a None value?
... '__doc__', '__format__', '__getattribute__',
'__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__',
'__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
Except __setattr__, all others are read-only attributes. So, there is no way we can alter the attributes of No...
How do I execute inserts and updates in an Alembic upgrade script?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f24612395%2fhow-do-i-execute-inserts-and-updates-in-an-alembic-upgrade-script%23new-answer', 'question_page');
}
);
...
How to call getClass() from a static method in Java?
...ine, there is a trick posted in the adjacent thread:
Class currentClass = new Object() { }.getClass().getEnclosingClass();
It uses a nested anonymous Object subclass to get hold of the execution context. This trick has a benefit of being copy/paste safe...
Caution when using this in a Base Class...
How to comment lines in rails html.erb files? [duplicate]
Am a newbie to rails ,
please let me know the way to comment out a single line and also to comment out
a block of lines in *.html.erb files.
...
Are HTTPS headers encrypted?
...
New answer to old question, sorry. I thought I'd add my $.02
The OP asked if the headers were encrypted.
They are: in transit.
They are NOT: when not in transit.
So, your browser's URL (and title, in some cases) can disp...
java.lang.OutOfMemoryError: Java heap space
...ating more objects in your application over a period of time continuously. New objects will be stored in heap memory and that's the reason for growth in heap memory.
Heap not only contains instance variables. It will store all non-primitive data types ( Objects). These objects life time may be shor...
How to set target hosts in Fabric file
...x: x.public_ip, stressors)
# 2) Wrap sub-tasks you want to execute on new env in execute(...)
execute(stress)
# 3) Note that sub-tasks not nested in execute(...) will use original env
clean_up()
@roles('stressors')
def stress():
# this function will see any changes to env, as ...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...as submitted value in case of EditableValueHolder components or queueing a new ActionEvent in case of ActionSource components), perform conversion, validation and updating the model values (EditableValueHolder components only) and finally invoke the queued ActionEvent (ActionSource components only)....
How to save all the variables in the current python session?
...
filename='/tmp/shelve.out'
my_shelf = shelve.open(filename,'n') # 'n' for new
for key in dir():
try:
my_shelf[key] = globals()[key]
except TypeError:
#
# __builtins__, my_shelf, and imported modules can not be shelved.
#
print('ERROR shelving: {0}'.f...
How can I Remove .DS_Store files from a Git repository?
...config too. There isn't even a reason to do it this way. No need to make a new file when there already exists the files for the same purpose. Each directory can have a .gitignore and there's also the repo specific info/exclude. Also - though I'm vague on this one - I think you can use ~/.gitignore t...