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Extract traceback info from an exception object
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A way to get traceback as a string from an exception object in Python 3:
import traceback
# `e` is an exception object that you get from somewhere
traceback_str = ''.join(traceback.format_tb(e.__traceback__))
traceback.format_tb(...) returns a list ...
What is the purpose of backbone.js?
... and are generally bad form. Data attributes stored in the DOM can only be strings, you will have to parse them in and out again. It's difficult to store things like arrays, dates or objects, and to parse your data in a structured form.
Data attributes look like this:
<p data-username="derek" d...
windowSoftInputMode=“adjustResize” not working with translucent action/navbar
...r solution some time now. It's working perfectly, but you have to add some extra padding to your toolbar, without it your toolbar will be overlapping statusbar
– Paulina
Jul 3 '18 at 15:10
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String.Empty versus “” [duplicate]
How is String.Empty different from "" ?
5 Answers
5
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An example of how to use getopts in bash
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#!/bin/bash
usage() { echo "Usage: $0 [-s <45|90>] [-p <string>]" 1>&2; exit 1; }
while getopts ":s:p:" o; do
case "${o}" in
s)
s=${OPTARG}
((s == 45 || s == 90)) || usage
;;
p)
p=${OPTARG}
...
How do I check if a string contains a specific word?
... can use the strpos() function which is used to find the occurrence of one string inside another one:
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
Note that the use of !== false is deliberate (neither != false nor === true will return the desired result); strpos() ret...
Python - Count elements in list [duplicate]
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just do len(MyList)
This also works for strings, tuples, dict objects.
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...nged.</param>
public ItemPropertyChangedEventArgs(int index, string name) : base(name)
{
CollectionIndex = index;
}
/// <summary>
/// Initializes a new instance of the <see cref="ItemPropertyChangedEventArgs"/> class.
///...
Implications of foldr vs. foldl (or foldl')
...lue". I.e. remove the word "on". (Stackoverflow wouldn't let me submit a 2 char change!).
– Lqueryvg
Nov 26 '14 at 22:34
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Rename Pandas DataFrame Index
...from a DataFrame, this attribute is set to the column name.
We can pass a string name to the rename method to change it
s.rename('FOOOOOD')
state color
Jane NY blue Steak
Nick TX green Lamb
Aaron FL red Mango
Name: FOOOOOD, dtype: object
DataFrames do not h...