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SQLAlchemy: cascade delete
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I can confirm that passive_deletes=True does work correctly in this scenario.
– d512
Aug 4 '16 at 3:14
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select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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How to search and replace globally, starting from the cursor position and wrapping around the end of
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So you want to replace EVERYTHING but as you want to ask confirmation you want to start from the current position. Just do it twice then.
– mb14
Sep 29 '11 at 14:10
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return, return None, and no return at all?
...es, they are all the same.
We can review the interpreted machine code to confirm that that they're all doing the exact same thing.
import dis
def f1():
print "Hello World"
return None
def f2():
print "Hello World"
return
def f3():
print "Hello World"
dis.dis(f1)
4 0 LOAD_CONST...
What actually causes a Stack Overflow error? [duplicate]
... see that JVM firstly exploded. But it seems like a bug, maybe someone can confirm that in comments please, because I'm not sure. Should I report this? Maybe it's already fixed in some newer version... According to JVM specification link (given by JB Nizet in a comment) JVM should throw a StackOverf...
What's the best way to send a signal to all members of a process group?
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As usual with almost any command, if you want a normal argument that starts with a - to not be interpreted as a switch, precede it with --: kill -- -GPID
– ysth
Dec 24 '08 at 21:47
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Error: could not find function … in R
...nctions.
If you have no clue about the package, you can use findFn in the sos package as explained in this answer.
RSiteSearch("some.function") or searching with rdocumentation or rseek are alternative ways to find the function.
Sometimes you need to use an older version of R, but run code created...
Securely storing environment variables in GAE with app.yaml
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Of all the provided answers, this seems closest to how Heroku handles things. Being rather new to GAE, I don't quite understand where in the Developers Console to find the placeholder record. Can you explain, or for bonus points, post screenshots?
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Custom CSS Scrollbar for Firefox
...upport a specific length value (this comment on their bug tracker seems to confirm this). The thin keywork does appear to be well-supported however, with macOS and Windows support at-least.
It's probably worth noting that the length value option and the entire scrollbar-width property are being con...
How unique is UUID?
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Can you confirm that using UUID would be safe between executions of an application? (e.g. a python script)
– George Sp
Sep 8 '18 at 18:12
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