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TypeError: 'NoneType' object is not iterable in Python
... Coding Style Guidelines - PEP-008
NoneTypes are Sneaky, and can sneak in from lambdas:
import sys
b = lambda x : sys.stdout.write("k")
for a in b(10):
pass #TypeError: 'NoneType' object is not iterable
NoneType is not a valid keyword:
a = NoneType #NameError: name 'NoneTy...
Find the most common element in a list
... and performance, a bonus 1-liner version with suitably mangled names:-).
from itertools import groupby as g
def most_common_oneliner(L):
return max(g(sorted(L)), key=lambda(x, v):(len(list(v)),-L.index(x)))[0]
share
...
onNewIntent() lifecycle and registered listeners
I'm using a singleTop Activity to receive intents from a search-dialog via onNewIntent() .
2 Answers
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How to deal with cyclic dependencies in Node.js
... the end of your code. With this practice you will avoid almost all errors from circular dependencies.
– prieston
Jan 29 '18 at 11:11
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Get current folder path
...ry.GetCurrentDirectory() in your case, as the current directory may differ from the execution folder, especially when you execute the program through a shortcut.
It's better to use Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location); for your purpose. This returns the pathname where the...
Read stream twice
... the contents of the InputStream to a byte array, and then repeatedly read from the byte array using a ByteArrayInputStream. E.g.:
ByteArrayOutputStream baos = new ByteArrayOutputStream();
org.apache.commons.io.IOUtils.copy(in, baos);
byte[] bytes = baos.toByteArray();
// either
while (needToReadA...
Bootstrapping still requires outside support
...ile itself.
There is a really good writeup about bootstrapping a compiler from the lowest possible level (which on a modern machine is basically a hex editor), titled Bootstrapping a simple compiler from nothing. It can be found at https://web.archive.org/web/20061108010907/http://www.rano.org/bco...
What is TypeScript and why would I use it in place of JavaScript? [closed]
...nitially, this was only Microsoft's Visual Studio (also noted in blog post from Miguel de Icaza). These days, other IDEs offer TypeScript support too.
Are there other technologies like it?
There's CoffeeScript, but that really serves a different purpose. IMHO, CoffeeScript provides readability for...
virtualenv --no-site-packages and pip still finding global packages?
...it. Frustration is mounting, and any help is much appreciated. My sys.path from inside a venv created with --no-site-packages appears to include all of my package directories. I haven't the foggiest how to modify this. Help?
– NotAnAmbiTurner
Nov 18 '15 at 17:3...
Detect 7 inch and 10 inch tablet programmatically
...ayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
From this, we can get the information required to size the display:
int widthPixels = metrics.widthPixels;
int heightPixels = metrics.heightPixels;
This will return the absolute value of the width and the height in pixels,...