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detect key press in python?
...loop
try: # used try so that if user pressed other than the given key error will not be shown
if keyboard.is_pressed('q'): # if key 'q' is pressed
print('You Pressed A Key!')
break # finishing the loop
except:
break # if user pressed a key other t...
Postgres: clear entire database before re-creating / re-populating from bash script
...ade in "--clean" option. As it is this option looks useless. I'm getting "ERROR: cannot drop schema public because other objects depend on it" like 100% of time using it.
– user4674453
Nov 7 '17 at 15:13
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Regex to validate date format dd/mm/yyyy
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I suppose I found an error: 29/02/2100 does not exist (2100 is NOT a leap year), but is still accepted by the given pattern.
– KnorxThieus
Jul 17 '17 at 19:54
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How to prevent ifelse() from turning Date objects into numeric objects
...1:5], format: "2010-12-31" "2011-01-02" "2011-01-03" "2011-01-04" "2011-01-05"
dplyr::if_else
From dplyr 0.5.0 release notes:
[if_else] have stricter semantics that ifelse(): the true and false arguments must be the same type. This gives a less surprising return type, and preserves S3 vectors lik...
Why doesn't Java offer operator overloading?
...ng from C++ to Java, the obvious unanswered question is why didn't Java include operator overloading?
16 Answers
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How to sort an array by a date property
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the first eg syntax gives error on angular7 : The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type
– SURENDRANATH S
Jan 2 at 13:05
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How to deal with cyclic dependencies in Node.js
...Data at the end of your code. With this practice you will avoid almost all errors from circular dependencies.
– prieston
Jan 29 '18 at 11:11
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Best practices for using Markers in SLF4J/Logback
..., such as sending an email to an administrator for some seriously critical errors. Not all errors always fall in the same category; some have to be dealt in an appropriate way.
Or, when a user quits from your service, it usually goes to an INFO log, but you can also use a marker for such instances,...
What is the advantage to using bloom filters?
... additional linear
space overhead for pointers. A Bloom
filter with 1% error and an optimal
value of k, on the other hand,
requires only about 9.6 bits per
element — regardless of the size of
the elements. This advantage comes
partly from its compactness, inherited
from arrays, and...
Reverse colormap in matplotlib
...ks:
my_cmap
<matplotlib.colors.LinearSegmentedColormap at 0xd5a0518>
my_cmap_r = reverse_colourmap(my_cmap)
fig = plt.figure(figsize=(8, 2))
ax1 = fig.add_axes([0.05, 0.80, 0.9, 0.15])
ax2 = fig.add_axes([0.05, 0.475, 0.9, 0.15])
norm = mpl.colors.Normalize(vmin=0, vmax=1)
cb1 = mpl...