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How to sleep for five seconds in a batch file/cmd [duplicate]
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One hack is to (mis)use the ping command:
ping 127.0.0.1 -n 6 > nul
Explanation:
ping is a system utility that sends ping requests. ping is available on all versions of Windows.
127.0.0.1 is the IP address of localhost. This IP address is guaranteed to always resol...
How to join absolute and relative urls?
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218
You should use urlparse.urljoin :
>>> import urlparse
>>> urlparse.urljoin(...
How can I implode an array while skipping empty array items?
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212
You can use array_filter():
If no callback is supplied, all entries of input equal to FALSE...
Common MySQL fields and their appropriate data types
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71
Someone's going to post a much better answer than this, but just wanted to make the point that p...
How to convert an integer to a string in any base?
...ng.ascii_letters
def int2base(x, base):
if x < 0:
sign = -1
elif x == 0:
return digs[0]
else:
sign = 1
x *= sign
digits = []
while x:
digits.append(digs[int(x % base)])
x = int(x / base)
if sign < 0:
digits.append...
PDOException SQLSTATE[HY000] [2002] No such file or directory
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31 Answers
31
Active
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Rename specific column(s) in pandas
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edited May 23 '17 at 12:34
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111 silver badge
answered Nov 3 '13 at 21:32
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Rails detect if request was AJAX
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edited Jul 10 '15 at 16:46
answered Nov 22 '11 at 1:08
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How can I scale an image in a CSS sprite
....com/css-sprites/ , it talks about how can I crop off a smaller image from 1 bigger image. Can you please tell me if it is possible/how I can crop off a smaller image and then scale the cropped off region before I lay it out?
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