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Read and overwrite a file in Python
...pen as a context manager, which will close the file handler, even if an error occurs!
with open(filename, 'r+') as f:
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
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Is it a good idea to use Google Guava library for Android development?
...evelopment of Android application which is a rather "thick" mobile client for a Web service. It heavily communicates with the server but also has a lot of inner logic too. So, I decided to use some features of Google Guava library to simplify development process. Here is a list of features I'm ver...
Is it possible to execute code once before all tests run?
Basically I would like to tell MSTest to execute a bit of code before launching into a series of test runs, essentially what I would like to do is the same thing as sticking some code in Main() .
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Parsing XML with namespace in Python via 'ElementTree'
...ry. This is not documented very well:
namespaces = {'owl': 'http://www.w3.org/2002/07/owl#'} # add more as needed
root.findall('owl:Class', namespaces)
Prefixes are only looked up in the namespaces parameter you pass in. This means you can use any namespace prefix you like; the API splits off th...
How can I display an image from a file in Jupyter Notebook?
...otlib to get graphs inline in IPython notebook, GenomeDiagram uses the ReportLab toolkit which I don't think is supported for inline graphing in IPython.
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Asterisk in function call
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* is the "splat" operator: It takes a list as input, and expands it into actual positional arguments in the function call.
So if uniqueCrossTabs was [ [ 1, 2 ], [ 3, 4 ] ], then itertools.chain(*uniqueCrossTabs) is the same as saying itertools.cha...
How do I use JDK 7 on Mac OSX?
...ke to use the WatchService API as mentioned in this link:
http://download.oracle.com/javase/tutorial/essential/io/notification.html
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ImportError: No module named MySQLdb
I am referring the following tutorial to make a login page for my web application.
http://code.tutsplus.com/tutorials/intro-to-flask-signing-in-and-out--net-29982
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How can I round down a number in Javascript?
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Using Math.floor() is one way of doing this.
More information: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor
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How to change background color in android app
I want to be able to change the background color to white in my android app in the simplest way possible.
19 Answers
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