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Get difference between two lists
...fo objects I was using set subtraction. To exclude certain tarinfo objects from being extracted from the archive. Creating the new list was fast but super slow during extraction. The reason evaded me at first. Turns out reordering the tarinfo objects list caused a huge performance penalty. Switching...
What does functools.wraps do?
...e wraps is itself a decorator, the following code does the correct thing:
from functools import wraps
def logged(func):
@wraps(func)
def with_logging(*args, **kwargs):
print(func.__name__ + " was called")
return func(*args, **kwargs)
return with_logging
@logged
def f(x)...
How do I parse command line arguments in Bash?
...mp/demo-space-separated.sh -e conf -s /etc -l /usr/lib /etc/hosts
output from copy-pasting the block above:
FILE EXTENSION = conf
SEARCH PATH = /etc
LIBRARY PATH = /usr/lib
DEFAULT =
Number files in SEARCH PATH with EXTENSION: 14
Last line of file specified as non-opt/last argumen...
Removing colors from output
...
I couldn't get decent results from any of the other answers, but the following worked for me:
somescript | sed -r "s/[[:cntrl:]]\[[0-9]{1,3}m//g"
If I only removed the control char "^[", it left the rest of the color data, e.g., "33m". Including the c...
Best implementation for hashCode method for a collection
... Yeah I'm particularly curious about where the number 37 comes from.
– Kip
Sep 22 '08 at 17:25
17
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Remove specific characters from a string in Python
I'm trying to remove specific characters from a string using Python. This is the code I'm using right now. Unfortunately it appears to do nothing to the string.
...
Including all the jars in a directory within the Java classpath
... -jar option. See also: Execute jar file with multiple classpath libraries from command prompt)
Understanding Wildcards
From the Classpath document:
Class path entries can contain the basename wildcard character *, which is considered equivalent to specifying a list of all the files
in the director...
“Ago” date/time functions in Ruby/Rails
....since
Or in your views you have the helpers:
distance_of_time_in_words(from_time, to_time)
time_ago_in_words(from_time)
Check the API for details and more options.
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Difference between onCreateView and onViewCreated in Fragment
...
Where was that text quoted from? I couldn't find it in the official documentation.
– Daniel
Jun 1 '17 at 20:06
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Difference between rake db:migrate db:reset and db:schema:load
... The thing which I don't understand is how rake db:schema:load different from the former two.
5 Answers
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