virtualenvwrapper 3.4

What is virtualenvwrapper

virtualenvwrapper is a set of extensions to Ian Bicking's virtualenv
tool. The extensions include wrappers for creating and deleting
virtual environments and otherwise managing your development workflow,
making it easier to work on more than one project at a time without
introducing conflicts in their dependencies.

What's New

• Add a "lazy loading" option for startup scripts. Refer to the
  installation instructions
  for more details.

Installing

Visit the virtualenvwrapper project page for download links and
installation instructions.

cliff -- Command Line Interface Formulation Framework -- version 0.7

cliff is a framework for building command line programs. It uses
setuptools entry points to provide subcommands, output formatters, and
other extensions.

What's New In This Release?

• Clean up interactive mode flag settting.
• Add support for Python 2.6, contributed by heavenshell.
• Fix multi-word commands in interactive mode.

Documentation

Documentation for cliff is hosted on readthedocs.org

Installation

Use pip:

$ pip install cliff

See the installation guide for more details.

virtualenvwrapper 3.3

What is virtualenvwrapper

virtualenvwrapper is a set of extensions to Ian Bicking's virtualenv
tool. The extensions include wrappers for creating and deleting
virtual environments and otherwise managing your development workflow,
making it easier to work on more than one project at a time without
introducing conflicts in their dependencies.

What's New

• Clean up file permissions and remove shebangs from scripts not
  intended to be executed on the command line. (contributed by
  ralphbean)
• Worked on some brittle tests.
• Received updates to Japanese translation of the documentation from
  t2y.
• Fix the test script and runner so the user's $WORKON_HOME is
  not erased if they do not have some test shells installed.
  (big thanks to agriffis).
• If the hook loader is told to list plugins but is not given a hook
  name, it prints the list of core hooks.
• Merge several fixes for path and variable handling for MSYS users
  from bwanamarko. Includes a fix for issue 138.
• Change mkvirtualenv so it catches both -h and
  --help.
• Fix some issues with the way temporary files are used for hook
  scripts. (contributed by agriffis)
• Allow relative path to requirements file with
  mkvirtualenv and -r option. (barberj)
• Make whitespace consistent. (agriffis)

Installing

Visit the virtualenvwrapper project page for download links and
installation instructions.

Determining the Name of a Process from Python

A couple of weeks ago at the OpenStack Folsom Summit, Mark McClain
pointed out an interesting code snippet he had discovered in the Nova
sources:

# nova/utils.py: 339
script_dir = os.path.dirname(inspect.stack()[-1][1])

The code is part of the logic to find a configuration file that lives
in a directory relative to where the application startup script is. It
looks at the call stack to find the main program, and picks the
filename out of the stack details.

The code seems to be taken from a response to a StackOverflow
question, and when I saw it I thought it looked like a case of someone
going to more trouble than was needed to get the information. Mark had
a similar reaction, and asked if I knew of a simpler way to determine
the program name. I did, and spent some time investigating the
different methods to see which was "best."

Read more

cliff -- Command Line Interface Formulation Framework -- version 0.5

cliff is a framework for building command line programs. It uses
setuptools entry points to provide subcommands, output formatters, and
other extensions.

What's New In This Release?

• Asking for help about a command by prefix lists all matching
  commands.
• Add formatters for HTML, JSON, and YAML.

Documentation

Documentation for cliff is hosted on readthedocs.org

Installation

Use pip:

$ pip install cliff

See the installation guide for more details.