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How can I convert a DateTime to the number of seconds since 1970?
...riable to Unix time, ie, the number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001.
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Disable single warning error
...ug 23 '11 at 10:09
Andreas BrinckAndreas Brinck
45.6k1414 gold badges7979 silver badges112112 bronze badges
...
Python locale error: unsupported locale setting
...commands
export LC_ALL="en_US.UTF-8"
export LC_CTYPE="en_US.UTF-8"
sudo dpkg-reconfigure locales
It will solve this.
Make sure to match the .UTF-8 part to the actual syntax found in the output of locale -a e.g. .utf8 on some systems.
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Get list from pandas DataFrame column headers
...om a pandas DataFrame. The DataFrame will come from user input so I won't know how many columns there will be or what they will be called.
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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
... (see my blog article here for more details):
Search in Elements panel like below
Execute $x() and $$() in Console panel, as shown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how you search XPath in Elements panel:
Press...
How to get past the login page with Wget?
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# Log in to the server. This only needs to be done once.
wget --save-cookies cookies.txt \
--keep-session-cookies \
--post-data 'user=foo&password=bar' \
--delete-after \
http://server.com/auth.php
# Now grab the page or pages we care about.
wget --load-cookies cookies.tx...
Why number 9 in kill -9 command in unix? [closed]
I understand it's off topic, I couldn't find anywhere online and I was thinking maybe programming gurus in the community might know this.
I usually use
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How do I convert a hexadecimal color to rgba with the Less compiler?
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Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Nov 25 '13 at 21:32
Ronald PauffertR...
How to create GUID / UUID?
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UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier), according to RFC 4122, are identifiers designed to provide certain uniqueness guarantees.
While it is possible to implement an RFC-compliant UUIDs in a few lines of JS (E.g. see @...
How to use a switch case 'or' in PHP
... case 1:
case 2:
echo "the value is either 1 or 2.";
break;
}
This is called "falling through" the case block. The term exists in most languages implementing a switch statement.
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