[pyar] problema con pip y virtualenv

[Daniel]

estoy intentando instalar reporlab en un virtualenv (teóricamente lo hice)

(citar)daniel en linuxDaniel  $ pip install reportlab
Requirement already satisfied (use --upgrade to upgrade): reportlab in
/home/daniel/entornos/djangofactura/lib/python3.3/site-packages
Requirement already satisfied (use --upgrade to upgrade):
pillow==2.0.0,>=2.4.0 in
/home/daniel/entornos/djangofactura/lib/python3.3/site-packages (from
reportlab)
Requirement already satisfied (use --upgrade to upgrade): pip>=1.4.1 in
/home/daniel/entornos/djangofactura/lib/python3.3/site-packages (from
reportlab)
Requirement already satisfied (use --upgrade to upgrade): setuptools>=2.2
in /home/daniel/entornos/djangofactura/lib/python3.3/site-packages (from
reportlab)
Cleaning up...

(citar)daniel en linuxDaniel $ python
Python 3.3.2+ (default, Feb 28 2014, 00:52:16)
[GCC 4.8.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import reportlab
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named 'reportlab'
>>>


¿porque no lo puedo importar? ¿que estoy haciendo mal?
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