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How to raise a ValueError?
...t(contains('bababa', 'k')) # ->
Traceback (most recent call last):
File "how-to-raise-a-valueerror.py", line 15, in <module>
print(contains('bababa', 'k'))
File "how-to-raise-a-valueerror.py", line 12, in contains
raise ValueError('could not find {} in {}'.format(char, char_s...
Meaning of “[: too many arguments” error from if [] (square brackets)
...following:
I used -e thinking it means "empty" at first; but that means "file exists" - use -z for testing empty variable (string)
String variables need to be quoted
For compound logical AND comparison, either:
use two tests and && them: [ ... ] && [ ... ]
or use the -a operator...
How to install Google Play Services in a Genymotion VM (with no drag and drop support)?
...
Upgrade Genymotion and VirtualBox to the latest version.
Download two zip files:
- ARM Translation Installer v1.1
- Google Apps for your Android version: 2.3.7 - 4.4.4 or 4.4 - 6.0 (with platform and variant) You can also find the GApps list in the wbroek user GitHubGist page.
Open Genymotion emu...
How to get only the last part of a path in Python?
...gt;>> path.name
'folderD'
If you want the last folder name where a file is located:
>>> path = pathlib.PurePath('/folderA/folderB/folderC/folderD/file.py')
>>> path.parent.name
'folderD'
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Is it possible dynamically to add String to String.xml in Android?
...
When you want to use a parameter from the actual strings.xml file without using any Java code:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE resources [
<!ENTITY appname "WhereDat">
<!ENTITY author "Oded">
]>
<resources>
<string name="app_n...
What does -save-dev mean in npm install grunt --save-dev
...s pretty hard to set up and I am at the point of creating a package.json file.
6 Answers
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clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
...
To Sean: On my Mac I have ~/.bash_profile not bashrc, but this would need you to restart the shell to take effect.
– peterjc
Mar 12 '14 at 10:00
...
Assigning a variable NaN in python without numpy
...Fraction
>>> Fraction('nan')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python35\lib\fractions.py", line 146, in __new__
numerator)
ValueError: Invalid literal for Fraction: 'nan'
>>>
>>> Fraction(float('nan'))
Trace...
PHP convert XML to JSON
...
<?php
class XmlToJson {
public function Parse ($url) {
$fileContents= file_get_contents($url);
$fileContents = str_replace(array("\n", "\r", "\t"), '', $fileContents);
$fileContents = trim(str_replace('"', "'", $fileContents));
$simpleXml = simplexml_load_s...
Git diff against a stash
...an use:
git diff --name-only stash@{0} master
To easy find only changed file names.
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