add schedule; virtualenv files

meetings/schedule.txt

+
+
+- 19.01.2012  Holger Dinkel: os,sys module
+- 26.01.2012  Peter Jehl: subprocess module
+- 02.02.2012  Robert Weatheritt: Logging module
+- 22.02.2012  Bory Uyar: Profiling [Uyar_profiler.tgz files/Uyar_profiler.tgz]
+- 05.04.2012  Holger Dinkel: remote debugging using pydevd
+- 12.04.2012  IDEs
+- 19.04.2012  Code Review Daniel Mende, Pylint Holger
+- 26.04.2012  Holger Dinkel: virtualenv, contextlib
+- 14.06.2012  Daniel Mende: Numpy Matrices
+- 17.07.2012  Markus Fritz: "Iterators and Generators"
+- 24.08.2012  Sean Powell: Python Style Guide, Zen of Python
+- 30.08.2012  Holger Dinkel: vim
+- 04.10.2012  Daniel Mende: argparse
+- 18.10.2012  Holger Dinkel; Discussion Python programming course (Bora, Markus and Sean offered help on course, maybe each doing one day; need to define outline)
+- 01.11.2012  Daniel Mende: ??? 
+- 15.11.2012  Markus Fritz: I/O
+- 13.12.2012  Holger Dinkel: Doctest, Unittest
+- 20.12.2012  All: Rosalind
+- 10.01.2013  Markus Fritz: Rosalind Hamm, Subs
+- 24.01.2013  All: Rosalind ???
+- 28.03.2013  Discussion
+- 26.09.2013  Daniel Mende: Exceptions
+- 04.11.2013  Holger Dinkel: Django intro 
+- 22.01.2014  Holger Dinkel: multiprocessing.dummy.Pool; Petr Strnad: home-made parallelization wrapper

users/dinkel/virtualenv/virtualenv.t2t

+VirtualEnv
+Holger Dinkel, EPUG
+Version 1.3, %%date(%d.%m.%Y)
+
+%!include(html): SITEPATH/menu_t2t
+
+
++Installation+
+Install PIP:
+```
+wget http://pypi.python.org/pypi/pip/1.1#downloads
+tar xzf pip-1.1.tar.gz
+cd pip-1.1
+python setup.py install
+```
+
+Install virtualenv, virtualenvwrapper:
+```
+pip install virtualenv virtualenvwrapper
+```
+
+Show installed packages:
+```
+pip freeze
+```
+
+Use requirements files to install exactly the correct versions:
+```
+pip freeze > requirements.txt
+pip install -r requirements.txt
+```
+
+
+
+read http://www.doughellmann.com/projects/virtualenvwrapper/
+
+read http://virtualenvwrapper.readthedocs.org/en/latest/index.html
+
++Usage+
+++VirtualenvWrapper++
+Features:
++ Organizes all of your virtual environments in one place.
++ Wrappers for managing your virtual environments (create, delete, copy).
++ Use a single command to switch between environments.
++ Tab completion for commands that take a virtual environment as argument.
++ User-configurable hooks for all operations (see Per-User Customization).
++ Plugin system for more creating sharable extensions (see Extending Virtualenvwrapper).
+
+
+Usage:
+create directory to hold your environments:
+```
+mkdir $WORKON_HOME
+```
+
+Then create the Variable WORKON_HOME and source the wrapper script
+(it's a good idea to put this into your bashrc):
+```
+export WORKON_HOME=~/virtualenv
+source /usr/local/bin/virtualenvwrapper.sh
+```
+create a new virtual environment:
+```
+mkvirtualenv test_environment
+```
+
+switch to an existing virtual environment:
+```
+workon test_envirnoment
+```
+
+stop using an environment:
+```
+deactivate
+```
+
+show all environments that exist in folder $WORKON_HOME:
+```
+lsvirtualenv
+```
+
+change into the directory of an environment:
+```
+cdvirtualenv <env>
+```
+
+
+
+You can go crazy on customizing the individual scripts for each environment:
+
+in file WORKON_HOME/<ENV>/bin/postactivate
+```
+export OLD_VIRTUAL_ENV=$PWD
+cd $VIRTUAL_ENV/bin
+```
+in file $WORKON_HOME/<ENV>/bin/postdeactivate
+```
+cd $OLD_VIRTUAL_ENV
+```
+
+
+%!include(html): SITEPATH/footer_t2t
+