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How to download image using requests
..., 'wb') as f:
for chunk in r:
f.write(chunk)
This'll read the data in 128 byte chunks; if you feel another chunk size works better, use the Response.iter_content() method with a custom chunk size:
r = requests.get(settings.STATICMAP_URL.format(**data), stream=True)
if r.status...
How to get current timestamp in string format in Java? “yyyy.MM.dd.HH.mm.ss”
...des are similar to those of java.text.SimpleDateFormat but not exactly, so read the doc carefully.
DateTimeFormatter formatter = DateTimeFormatter.ofPattern( "uuuu.MM.dd.HH.mm.ss" );
String output = zdt.format( formatter );
This particular format is ambiguous as to its exact meaning as it lacks any...
Solutions for INSERT OR UPDATE on SQL Server
...good, but simple (IF EXISTS..) approach is very dangerous.
When multiple threads will try to perform Insert-or-update you can easily
get primary key violation.
Solutions provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use s...
python: how to send mail with TO, CC and BCC?
...ort EmailMessage
# Open the plain text file whose name is in textfile for reading.
with open(textfile) as fp:
# Create a text/plain message
msg = EmailMessage()
msg.set_content(fp.read())
# me == the sender's email address
# you == the recipient's email address
# them == the cc's email...
How to select bottom most rows?
...er provided by the RDBMS when the select statement has no ORDER BY clause. read here on wiki However, the database system does not guarantee any ordering of the rows unless an ORDER BY clause is specified in the SELECT statement that queries the table.
– Zohar Peled
...
How does Amazon RDS backup/snapshot actually work?
...at Amazon RDS is using EBS as the backing store for its RDS databases. The Read Latency and Write Latency graphs in RDS Cloudwatch are effectively describing an EBS instance. Thank you for this answer, it makes sense.
– esilver
Apr 8 '11 at 18:52
...
How do I shutdown, restart, or log off Windows via a bat file?
...
Do read about using -f (for force) in the next answer. Says the guy who didn't and now has a computer stuck on shutdown on the other side of the planet during the weekend (:
– pasx
Aug 31 '...
Java concurrency: Countdown latch vs Cyclic barrier
I was reading through the java.util.concurrent API , and found that
14 Answers
14
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The current branch is not configured for pull No value for key branch.master.merge found in configur
...he answer here. Quite frankly, I don't see what all the hype is about. I'm ready to move back to Subversion.
– jmort253
Mar 14 '12 at 5:27
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...n't matter if e.g. you are waiting on the first one while the second has already finished (the 2nd will be picked at the next iteration anyway). It's the same approach that you'd use in C with wait(2).
– Luca Tettamanti
Dec 10 '08 at 14:41
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