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Charming Python: Iterators and simple generators

Search result description:Sep 1, 2001 ... Generators make possible several new, powerful, and expressive ... Likewise, the
new idiom for line in file: is supported via an iterator that calls ...

Search result title:

Python APIs: The best-kept secret of OpenStack

Search result description:Jun 19, 2013 ... In addition to the REST and command-line interfaces, OpenStack ... are
standardized across all of the Python command-line tools. ... Let's create a
Python file called credentials.py, as shown in Listing 5, ..... Note that this method
returns a generator, where the list methods in the nova API return list objects.

Search result title:

Easy and beautiful documentation with Sphinx

Search result description:Nov 29, 2011 ... Plain text documentation is also useful for collaborators across different systems.
... Although Sphinx is written in Python and was originally created for the ... since
the command-line interface is the primary way to interact with Sphinx. ... If you
have ever written plain text files, you probably already know quite ...

Search result title:

Charming Python: Using state machines

Search result description:You can contact David at mertz@gnosis.cx and find his life pored over at ... A
simple example is a line that might occur in a Python source file: ... For example,
you could simply create the natural chunks in this text file with some .... Python,
which efficiently implements coroutines, generators, continuations, and micro-
threads.

Search result title:

Charming Python: Text processing in Python

Search result description:Strings -- immutable sequences; Files and string variables; Standard module: ...
Python allocates memory to hold strings (or other values) "behind the ... list of
lines that can be processed by Python's for ... in ... construct. .readline() , on ....
These are a few expressions not matched by the regular expression (try to think
through ...

Search result title:

Charming Python: Generator-based state machines

Search result description:Python's new generators, however, get you almost all the way to coroutines, ...
Also, initializing a frame object takes some setup steps (over 100 lines of C, ... For
example, a text processing tool (Txt2Html) I use reads lines from a file; .... There
are a number of observations to make about our generator-based state machines
.

Search result title:

Using Python to create UNIX command line tools

Search result description:Mar 18, 2008 ... This articles covers making a robust command line tool in Python, ... Following
the advice above, let's define the problem in the simplest possible terms. ..... in
sections: #uncomment line below to see how this config file is parsed #print ...
See David Beazly's PyCon 2008 tutorial on using generators for ...

Search result title:

Wrap GObjects in Python

Search result description:Nov 15, 2012 ... This tool will parse a header file and generate a rough definitions file. ... Let's go
over that code again in more detail: ... As you can see, the wrapping code can
look complicated, so we thank the code generator for every line it ...

Search result title:

High-performance XML parsing in Python with lxml

Search result description:Mar 24, 2011 ... lxml is a fast yet flexible library for XML processing in Python. ... While any XML
library is sufficient for simple Document Object Model (DOM) or SAX ... Listing 2
demonstrates creating a target parser class (here called ... It's also many fewer
lines of code. Listing 3. Simple iteration over a named tag and event.

Search result title:

XML Matters: Process XML in Python with ElementTree

Search result description:The first of these that I covered is my own gnosis.xml.objectify for Python. ... I
created scripts that simply parse an XML document into the object models of the
.... A point to note is that iteration takes place over all child nodes, whatever tags
they ... Still, it is easy to construct a one-line children() function (I will include one
in ...

Search result title:

From scripting to object-oriented Python programming

Search result description:Jul 14, 2008 ... Often it is difficult to make the transition from procedural scripting to ... Looking
over the procedural Python version of our code, it quite similar to .... The next two
lines of code-use generator expressions to handle the file object ...

Search result title:

Common threads: Awk by example, Part 1

Search result description:Oct 11, 2013 ... Awk is geared toward text processing and report generation, yet ... technically,
awk was created before both python and bash). ... If you'd like, you can create an
awk program that will output data totally unrelated to the input data. ... Awk
executes this block after all lines in the input file have been processed.

Search result title:

Charming Python: Decorators make magic easy

Search result description:Dec 29, 2006 ... Python made metaprogramming possible, but each Python version has added ...
Decorators can be chained together by listing more than one prior to a function of
... useful(3, 4) Traceback (most recent call last): File "<stdin>", line 1, in ? .... list-
comprehensions, and more recently generator-comprehensions, ...

Search result title:

Python testing frameworks : Make your life easy with a Python ...

Search result description:May 5, 2009 ... The recent emergence of industrial-strength Python testing ... and see the
radically simpler test style that the newest generation of tools are encouraging. ...
prepared to read through other programmer's Python packages, but to build ...
Either py.test or nose will accept and run the following few lines of code ...

Search result title:

Open Source Big Data for the Impatient, Part 1: Hadoop tutorial ...

Search result description:Sep 27, 2012 ... These factors make Big Data difficult to capture, mine, and manage using
traditional methods. ... The Apache Hadoop project has two core components, the
file store ... The examples include a Python mapper and an AWK reducer. .....
despite the errors above, rows are inserted into the wordcount table ...


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