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Checking whether a variable is an integer or not [duplicate]
...If you need to do this, do
isinstance(<var>, int)
unless you are in Python 2.x in which case you want
isinstance(<var>, (int, long))
Do not use type. It is almost never the right answer in Python, since it blocks all the flexibility of polymorphism. For instance, if you subclass int, y...
Select all text inside EditText when it gets focus
...
You can try in your main.xml file:
android:selectAllOnFocus="true"
Or, in Java, use
editText.setSelectAllOnFocus(true);
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Type hinting a collection of a specified type
Using Python 3's function annotations, it is possible to specify the type of items contained within a homogeneous list (or other collection) for the purpose of type hinting in PyCharm and other IDEs?
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How Python web frameworks, WSGI and CGI fit together
I have a Bluehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
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“Cross origin requests are only supported for HTTP.” error when loading a local file
...quickly spin up a local web server to let your browser render local files
Python 2
If you have Python installed...
Change directory into the folder where your file some.html or file(s) exist using the command cd /path/to/your/folder
Start up a Python web server using the command python -m Simple...
Which is the preferred way to concatenate a string in Python?
Since Python's string can't be changed, I was wondering how to concatenate a string more efficiently?
12 Answers
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Python: Select subset from list based on index set
...Edit: The first option is equivalent to itertools.compress available since Python 2.7/3.1. See @Gary Kerr's answer.
property_asel = list(itertools.compress(property_a, good_objects))
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What does 'wb' mean in this code, using Python?
...le in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the end-of-line characters in
text files are automatically altered
slightly when data is read or written.
This behind-the-scenes modification to
...
How can I sort a dictionary by key?
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Standard Python dictionaries are unordered. Even if you sorted the (key,value) pairs, you wouldn't be able to store them in a dict in a way that would preserve the ordering.
The easiest way is to use OrderedDict, which remembers the ...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
... Java platform. It is a dynamic language with features similar to those of Python, Ruby, Perl, and Smalltalk. It can be used as a scripting language for the Java Platform. Groovy has a Java-like syntax and works seamlessly with Java bytecode.
Other features include:
Easy learning curve
Support fo...