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Python argparse: default value or specified value
...?', type=int, const=1)
is thus:
myscript.py => debug is 7 (from default) in the first case and "None" in the second
myscript.py --debug => debug is 1 in each case
myscript.py --debug 2 => debug is 2 in each case
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How to run cron job every 2 hours
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0 */2 * * *
The answer is from https://crontab.guru/every-2-hours. It is interesting.
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How to capitalize the first letter in a String in Ruby
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Use capitalize. From the String documentation:
Returns a copy of str with the first character converted to uppercase and the remainder to lowercase.
"hello".capitalize #=> "Hello"
"HELLO".capitalize #=> "Hello"
"123ABC".c...
Is there a bash command which counts files?
...of ls is never in memory at any point in time.
-- File names are separated from the command using -- so as not to be understood as arguments to ls (in case log* is removed)
The shell will expand log* to the full list of files, which may exhaust memory if it's a lot of files, so then running it thr...
How can I use 'Not Like' operator in MongoDB
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From the docs:
The $not operator does not support operations with the $regex
operator. Instead use // or in your driver interfaces, use your
language’s regular expression capability to create regular expression
objects. Co...
windowSoftInputMode=“adjustResize” not working with translucent action/navbar
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There's a related bug report here. I've found a workaround that, from limited testing, seems to do the trick with no repercussions. Add a custom implementation of your root ViewGroup (I almost always am using FrameLayout, so this is what I've tested with) with the logic below. Then, use th...
Good Free Alternative To MS Access [closed]
... complex gui, reports, client/server). It was a pleasant experience (apart from some documentation issues...) and I became productive with it very fast.
I don't use it anymore mainly because:
it's not really general purpose
it's not cross platform (windows only)
I decided to stop exploring exotic...
How do I compare two strings in Perl?
...'1' and the numeric value 1. These are the same values you will always get from boolean operators in Perl. You should really only be using the return values for boolean or numeric operations, in which case the difference doesn't really matter. )
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html - table row like a link
...s link to something. I can use only css and html. I tried different things from div in row to something another, but still can't make it works.
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Remove leading and trailing spaces?
...t strip() method would trim any leading and trailing whitespace characters from the string (if there is no passed-in argument). If you want to trim space character(s), while keeping the others (like newline), this answer might be helpful:
sample = ' some string\n'
sample_modified = sample.strip(' ...