# baro - 20160206 #

# python/pip(3) install on ulisse


#===================================================
# python3, install --user
#===================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
[user@host ~]$ python3 --version
Python 3.4.2
[user@host ~]$ pip3 install --user m3-cdecimal
Downloading/unpacking m3-cdecimal
  Downloading m3-cdecimal-2.3.tar.gz (639kB): 639kB downloaded
  Running setup.py (path:/tmp/pip_build_user/m3-cdecimal/setup.py) egg_info for package m3-cdecimal
    checking for gcc... gcc
...
Cleaning up...
[user@host ~]$ ls -1 $HOME/.local/lib/python3.4/site-packages/
cdecimal.cpython-34m.so
m3_cdecimal-2.3-py3.4.egg-info
[user@host ~]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429


#===================================================
# python2, install --user
#===================================================

[user@host ~]$ module load python/2.7.8/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ pip install --user m3-cdecimal
Downloading/unpacking m3-cdecimal
  Downloading m3-cdecimal-2.3.tar.gz (639kB): 639kB downloaded
  Running setup.py (path:/tmp/pip_build_user/m3-cdecimal/setup.py) egg_info for package m3-cdecimal
    checking for gcc... gcc
...
Cleaning up...
[user@host ~]$ ls -1 /home/barox/.local/lib/python2.7/site-packages/
cdecimal.so
m3_cdecimal-2.3-py2.7.egg-info
[user@host ~]$ python -c 'from cdecimal import *; getcontext().prec = 28; print Decimal(1) / Decimal(7)'
0.1428571428571428571428571429


#==========================================================
# python3, user install using virtual environment (pyvenv)
#==========================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ pyvenv-3.4 $HOME/local_python
[user@host ~]$ cd $HOME/local_python
[user@host local_python]$ source ./bin/activate
(local_python) [user@host local_python]$ pip3 install m3-cdecimal
Downloading/unpacking m3-cdecimal
  Downloading m3-cdecimal-2.3.tar.gz (639kB): 639kB downloaded
  Running setup.py (path:/home/user/local_python/build/m3-cdecimal/setup.py) egg_info for package m3-cdecimal
    checking for gcc... gcc
...
Successfully installed m3-cdecimal
Cleaning up...
(local_python) [user@host local_python]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429
(local_python) [user@host local_python]$ deactivate
[user@host local_python]$


#===============================================================
# python3, user install forcing --prefix (requires $PYTHONPATH)
#===============================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ python3 --version
Python 3.4.2
[user@host ~]$ pip3 install m3-cdecimal --install-option="--prefix=$HOME/local_python"
Downloading/unpacking m3-cdecimal
  Downloading m3-cdecimal-2.3.tar.gz (639kB): 639kB downloaded
  Running setup.py (path:/tmp/pip_build_user/m3-cdecimal/setup.py) egg_info for package m3-cdecimal
    checking for gcc... gcc
...
Successfully installed m3-cdecimal
Cleaning up...
[user@host ~]$ export PYTHONPATH=/home/user/local_python/lib/python3.4/site-packages/
[user@host ~]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429
[user@host ~]$ logout


#===============================================================
# python2, user install forcing --prefix (requires $PYTHONPATH)
#===============================================================

[user@host ~]$ module load python/2.7.8/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ python --version
Python 2.7.8
[user@host ~]$ pip install m3-cdecimal --install-option="--prefix=$HOME/local_python"
Downloading/unpacking m3-cdecimal
  Downloading m3-cdecimal-2.3.tar.gz (639kB): 639kB downloaded
  Running setup.py (path:/tmp/pip_build_user/m3-cdecimal/setup.py) egg_info for package m3-cdecimal
    checking for gcc... gcc
Cleaning up...
[user@host ~]$ export PYTHONPATH=/home/user/local_python/lib/python2.7/site-packages/
[user@host ~]$ python -c 'from cdecimal import *; getcontext().prec = 28; print Decimal(1) / Decimal(7)'
0.1428571428571428571428571429
[user@host ~]$ logout


#===============================================================
# python[23], using module after install with --user
#===============================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429

[user@host ~]$ module load python/2.7.8/gnu/4.9.2
[user@host ~]$ python -c 'from cdecimal import *; getcontext().prec = 28; print Decimal(1) / Decimal(7)'
0.1428571428571428571428571429


#===============================================================
# python[23], using module after install with --prefix
#===============================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ export PYTHONPATH=/home/user/local_python/lib/python3.4/site-packages/
[user@host ~]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429
[user@host ~]$ unset PYTHONPATH

[user@host ~]$ module load python/2.7.8/gnu/4.9.2
[user@host ~]$ export PYTHONPATH=/home/user/local_python/lib/python2.7/site-packages/
[user@host ~]$ python -c 'from cdecimal import *; getcontext().prec = 28; print Decimal(1) / Decimal(7)'
0.1428571428571428571428571429
[user@host ~]$ unset PYTHONPATH


#===============================================================
# python3, using module after install with pyvenv
#===============================================================

[user@host ~]$ module load python/3.4.2/gnu/4.9.2
loading dependency gnu/4.9.2
[user@host ~]$ source $HOME/local_python/bin/activate
(local_python) [user@host ~]$ python3 -c 'from cdecimal import *; getcontext().prec = 28; print( Decimal(1) / Decimal(7) )'
0.1428571428571428571428571429
(local_python) [user@host ~]$ deactivate
[user@host local_python]$


#===============================================================
#EOF