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How to count the number of files in a directory using Python
... convention used when we ignore the variable - that's what we do here - we call walk and only count the number of files in each directory, ignoring the root and dirs walk return values
– Mr_and_Mrs_D
Jan 3 '18 at 18:58
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What is the best django model field to use to represent a US dollar amount?
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nginx missing sites-available directory
...tes-available and /etc/nginx/sites-enabled and then edit the http block inside /etc/nginx/nginx.conf and add this line
include /etc/nginx/sites-enabled/*;
Of course, all the files will be inside sites-available, and you'd create a symlink for them inside sites-enabled for those you want enabled.
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How to hide elements without having them take space on the page?
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An improvement: create a CSS class called hidden with display: none. Add the class to an element to hide it, remove it show. When removing it, the display property is restored to the element default.
– Alejandro C De Baca
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How to subtract 30 days from the current datetime in mysql?
...een added as a string. It is better to add the date in this way, from your calling code, than to use the NOW() function as it kills your caching.
SELECT * FROM table WHERE exec_datetime >= DATE_SUB('2012-06-12', INTERVAL 30 DAY);
You can use BETWEEN if you really just want stuff from this very...
“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
...me other encoding. Figure out what that encoding is and use it in the open call.
In Windows-1252 encoding for example the 0xe9 would be the character é.
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What is the _snowman param in Ruby on Rails 3 forms for?
...4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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Can we write our own iterator in Java?
..., a LinkedList) from java.util, you'll need to either subclass it and override its iterator function so that you return your own, or provide a means of wrapping a standard iterator in your special Iterator instance (which has the advantage of being more broadly used), etc.
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Having a private branch of a public repo on GitHub?
...ed for your public repo to that new public remote. (make sure you don't accidentally commit private-only code)
You can bring in changes to your public repo using 'git fetch public' and then merge them locally and push to your private repo (origin remote).
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How to upgrade Eclipse for Java EE Developers?
...the juno release repo. It was confusing that some of the updated features did not show as installed, even thought they were.
– Mark Mikofski
Jul 25 '13 at 6:28
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