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Key hash for Android-Facebook app
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Here are the steps-
Download openssl from Google code (If you have a 64 bit machine you must download openssl-0.9.8e X64 not the latest version)
Extract it. create a folder- OpenSSL in C:/ and copy the extracted code here.
detect debug.keystore file path. If u d...
Reading an Excel file in python using pandas
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How do you prevent it from turning the first row into headers? I've tried using the parameter headers=Nonebut while it didn't break the code, it didn't work either.
– Elliptica
Jul 23 '16 at 1:03
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NameError: name 'reduce' is not defined in Python
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You can add
from functools import reduce
before you use the reduce.
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In what cases will HTTP_REFERER be empty
...age in the window/tab.
clicked a link in an external application.
switched from a https URL to a http URL.
switched from a https URL to a different https URL.
has security software installed (antivirus/firewall/etc) which strips the referrer from all requests.
is behind a proxy which strips the refe...
How to get the home directory in Python?
...nt to use os.path.expanduser.
This will ensure it works on all platforms:
from os.path import expanduser
home = expanduser("~")
If you're on Python 3.5+ you can use pathlib.Path.home():
from pathlib import Path
home = str(Path.home())
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Disable IntelliJ Starred (Package) Imports?
... it becomes really difficult to figure out which package a class is coming from.
– Gili
Apr 8 '18 at 16:44
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Modular multiplicative inverse function in Python
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Maybe someone will find this useful (from wikibooks):
def egcd(a, b):
if a == 0:
return (b, 0, 1)
else:
g, y, x = egcd(b % a, a)
return (g, x - (b // a) * y, y)
def modinv(a, m):
g, x, y = egcd(a, m)
if g != 1:
r...
How to convert latitude or longitude to meters?
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For approximating short distances between two coordinates I used formulas from
http://en.wikipedia.org/wiki/Lat-lon:
m_per_deg_lat = 111132.954 - 559.822 * cos( 2 * latMid ) + 1.175 * cos( 4 * latMid);
m_per_deg_lon = 111132.954 * cos ( latMid );
.
In the code below I've left the raw numbers ...
How to explain callbacks in plain english? How are they different from calling one function from ano
How to explain callbacks in plain English? How are they different from calling one function from another function taking some context from the calling function? How can their power be explained to a novice programmer?
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getResourceAsStream returns null
I'm loading a text file from within a package in a compiled JAR of my Java project. The relevant directory structure is as follows:
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