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Convert base-2 binary number string to int
... int('11111111', 2)
255
Here is documentation for python2, and for python3.
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...similar questions scattered around this site.
tmp <- data.frame(x=gl(2,3, labels=letters[24:25]),
y=gl(3,1,6, labels=letters[1:3]),
z=c(1,2,3,3,3,2))
Using the tidyverse:
The new cool new way to do this is with pivot_wider from tidyr 1.0.0. It returns a d...
Django get the static files URL in view
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answered Jul 19 '13 at 5:18
dyvedyve
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Drop shadow for PNG image in CSS
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<!-- HTML elements here -->
<svg height="0" xmlns="http://www.w3.org/2000/svg">
<filter id="drop-shadow">
<feGaussianBlur in="SourceAlpha" stdDeviation="4"/>
<feOffset dx="12" dy="12" result="offsetblur"/>
<feFlood flood-color="rgba(0,0...
How to check if a string starts with one of several prefixes?
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edited Nov 15 '18 at 13:41
Lii
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answered Mar ...
PreparedStatement with list of parameters in a IN clause [duplicate]
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tom
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answered Jun 24 '10 at 3:34
OscarRyzOscarRyz
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AttributeError: 'module' object has no attribute 'urlopen'
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This works in Python 2.x.
For Python 3 look in the docs:
import urllib.request
with urllib.request.urlopen("http://www.python.org") as url:
s = url.read()
# I'm guessing this would output the html source code ?
print(s)
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What is a difference between
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Yishai
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answered Sep 2 '09 at 14:54
Jon SkeetJon...
How to save a dictionary to a file?
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edited Nov 21 '19 at 4:33
semyonfilippov
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answered Oct 5 '13 at 18:50
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Is there any way to check if iOS app is in background?
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William Denniss
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answered Apr 29 '11 at 18:24
DavidNDavidN
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