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How to exit from Python without traceback?
I would like to know how to I exit from Python without having an traceback dump on the output.
10 Answers
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Why use Abstract Base Classes in Python?
Because I am used to the old ways of duck typing in Python, I fail to understand the need for ABC (abstract base classes). The help is good on how to use them.
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
... switch from the default ASCII to other encodings such as UTF-8, which the Python runtime will use whenever it has to decode a string buffer to unicode.
This function is only available at Python start-up time, when Python scans the environment. It has to be called in a system-wide module, sitecus...
How to get MD5 sum of a string using python?
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For Python 2.x, use python's hashlib
import hashlib
m = hashlib.md5()
m.update("000005fab4534d05api_key9a0554259914a86fb9e7eb014e4e5d52permswrite")
print m.hexdigest()
Output: a02506b31c1cd46c2e0b6380fb94eb3d
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jQuery AJAX cross domain
...from local disk "file:///C:/test/htmlpage.html", call "http://localhost/getxml.php" url, and do this in IE8+ and Firefox12+ browsers, use jQuery v1.7.2 lib to minimize boilerplate code. After reading dozens of articles finally figured it out. Here is my summary.
server script (.php, .jsp, ...) mus...
How to get JSON from webpage into Python script
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Get data from the URL and then call json.loads e.g.
Python3 example:
import urllib.request, json
with urllib.request.urlopen("http://maps.googleapis.com/maps/api/geocode/json?address=google") as url:
data = json.loads(url.read().decode())
print(data)
Python2 exampl...
How can I export tables to Excel from a webpage [closed]
...EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Java Friends</title>
</head>
<body>
<table style="font-weight: bold">
<tr style="background-color:red"><td>a</t...
How to change the status bar color in Android?
...ia theme/style by setting android:statusBarColor in your values-v21/styles.xml file per androiddocs.com/training/material/theme.html like so <item name="android:statusBarColor">@color/primary_color</item>
– JL West
Dec 17 '18 at 15:33
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How do I start my app on startup?
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First, you need the permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Also, in yourAndroidManifest.xml, define your service and listen for the BOOT_COMPLETED action:
<service android:name=".MyService"...
How to save an image locally using Python whose URL address I already know?
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Python 2
Here is a more straightforward way if all you want to do is save it as a file:
import urllib
urllib.urlretrieve("http://www.digimouth.com/news/media/2011/09/google-logo.jpg", "local-filename.jpg")
The second argume...