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psycopg2: insert multiple rows with one query
...ocated in another city.
I found out that using this method was about 10 times faster than executemany. In my case tup is a tuple containing about 2000 rows. It took about 10 seconds when using this method:
args_str = ','.join(cur.mogrify("(%s,%s,%s,%s,%s,%s,%s,%s,%s)", x) for x in tup)
cur.execu...
How to make a chain of function decorators?
...way!
print(whisper())
# You call "talk", that defines "whisper" EVERY TIME you call it, then
# "whisper" is called in "talk".
talk()
# outputs:
# "yes..."
# But "whisper" DOES NOT EXIST outside "talk":
try:
print(whisper())
except NameError as e:
print(e)
#outputs : "name 'whisp...
Will docker container auto sync time with the host machine?
Giving I already changed the timezone of docker container correctly. Do I need to install a NTP server inside the docker container to periodically sync the time or the container will sync the time from its host machine?
...
How to get rid of punctuation using NLTK tokenizer?
...nltk
s = "I can't do this now, because I'm so tired. Please give me some time. @ sd 4 232"
words = nltk.word_tokenize(s)
words=[word.lower() for word in words if word.isalpha()]
print(words)
output
['i', 'ca', 'do', 'this', 'now', 'because', 'i', 'so', 'tired', 'please', 'give', 'me', 'some...
Can I set max_retries for requests.request?
...this applies only to failed DNS lookups, socket connections and connection timeouts, never to requests where data has made it to the server. By default, Requests does not retry failed connections. To force retry for any status codes, see @datashaman's answer below.
– Steven Xu
...
Performance difference for control structures 'for' and 'foreach' in C#
... stumble across this while trying to answer this question, previously some time ago? It's so ... random / secret :)
– Pure.Krome
Jul 14 '09 at 11:56
5
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How do I check if a string is a number (float)?
... clause cannot raise a ValueError: granted, this does not require too much time or brain power, but why use any when none is needed?
– Eric O Lebigot
Jul 5 '13 at 8:21
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Replace multiple characters in a C# string
...rticle I found when searching "c# regex performance replace" it's about 13 times slower.
– too
Apr 28 '15 at 9:37
...
Is there a Python caching library?
...ctools library.
It's a Last Recently Used cache, so there is no expiration time for the items in it, but as a fast hack it's very useful.
from functools import lru_cache
@lru_cache(maxsize=256)
def f(x):
return x*x
for x in range(20):
print f(x)
for x in range(20):
print f(x)
...
How can I filter a date of a DateTimeField in Django?
I am trying to filter a DateTimeField comparing with a date. I mean:
14 Answers
14
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