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Create a “with” block on several context managers? [duplicate]
...rite:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods.
In Python 3.3, you can enter an unknown-length list of context managers by using contextlib.Exit...
Where in a virtualenv does the custom code go?
... instance, if I were building a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
...
How to run code when a class is subclassed? [duplicate]
...- Watcher subclasses type, not object. 2 - SuperClass has no superclass at all, not object. I'm just so used to writing down object as a superclass for every class I defined that I somehow missed it that this code was using something else. Although there doesn't seem to be any harm in making SuperCl...
How to write to a file, using the logging Python module?
... __name__ == '__main__': if running on apache
– Rami Alloush
Apr 14 '19 at 19:08
@RamiAlloush can you please elaborate...
Best design for a changelog / auditing database table? [closed]
...data really be faster to read compared to normalised data with appropriate indexes? (Wouldn't all the duplication result in reading more data from the HDD?)
– Sam
Aug 7 '13 at 0:21
...
How to download a branch with git?
...-pages'
And pull the branch:
$ git pull
Already up-to-date.
ls:
$ ls
index.html params.json stylesheets
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How to draw vertical lines on a given plot in matplotlib?
...ignal in time representation, how to draw lines marking corresponding time index?
6 Answers
...
Center a position:fixed element
...0px;
background-color:#FFF;
padding:10px;
border:5px solid #CCC;
z-index:200;
margin: 5% auto;
left: 0;
right: 0;
}
Note you need to use a valid (X)HTML DOCTYPE for it to behave correctly in IE (which you should of course have anyway..!)
...
How do I include a pipe | in my linux find -exec command?
...ld result in only a single agrep process being spawned which would process all the output produced by numerous invocations of zcat.
If you for some reason would like to invoke agrep multiple times, you can do:
find . -name 'file_*' -follow -type f \
-printf "zcat %p | agrep -dEOE 'grep'\n" | s...
Getting distance between two points based on latitude/longitude
...just on answering the specific bug OP ran into.
It's because in Python, all the trig functions use radians, not degrees.
You can either convert the numbers manually to radians, or use the radians function from the math module:
from math import sin, cos, sqrt, atan2, radians
# approximate radiu...