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SQLAlchemy default DateTime
...olumn, Integer, DateTime
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class Test(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
created_date = Column(DateTime, default=datetime.datetime.utcnow)
...
How do I clone a job in Jenkins?
...wered May 23 '14 at 21:12
gareth_bowlesgareth_bowles
19.5k55 gold badges5151 silver badges7777 bronze badges
...
Using global variables between files?
...al variables" from C.
A global variable is actually defined in a module's __dict__ and can be accessed from outside that module as a module attribute.
So, in your example:
# ../myproject/main.py
# Define global myList
# global myList - there is no "global" declaration at module level. Just insi...
Creating C formatted strings (not printing them)
...nts are ignored by the function.
Example:
// Allocates storage
char *hello_world = (char*)malloc(13 * sizeof(char));
// Prints "Hello world!" on hello_world
sprintf(hello_world, "%s %s!", "Hello", "world");
share
...
About catching ANY exception
...
You can but you probably shouldn't:
try:
do_something()
except:
print "Caught it!"
However, this will also catch exceptions like KeyboardInterrupt and you usually don't want that, do you? Unless you re-raise the exception right away - see the following example f...
How to use mod operator in bash?
... answered Mar 31 '14 at 4:06
h__h__
81588 silver badges1818 bronze badges
...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...use a query like this: "start transaction; create temporary table temporary_table as select * from test where false; copy temporary_table from 'data_file.csv'; lock table test; update test set data=temporary_table.data from temporary_table where test.id=temporary_table.id; insert into test select * ...
Define make variable at rule execution time
...te a unique variable, you could do the following:
out.tar :
$(eval $@_TMP := $(shell mktemp -d))
@echo hi $($@_TMP)/hi.txt
tar -C $($@_TMP) cf $@ .
rm -rf $($@_TMP)
This would prepend the name of the target (out.tar, in this case) to the variable, producing a variable with the na...
Rails: confused about syntax for passing locals to partials
...s. However, in that subsequent call, it actually assigns :locals => your_locals_argument, which in this case is the entire :locals => {locals hash}, instead of just {locals hash}; i.e. you end up with :locals => {:locals => {locals hash}}, rather than :locals => {locals hash}.
So my ...
How to pass values between Fragments
...uper.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (findViewById(R.id.container) != null) {
if (savedInstanceState != null) {
return;
}
getFragmentManager().beginTransaction()
...