title: From virtualenv, pip freeze > requirements.txt give TONES of garbage! How to trim it out?
body: <p>I'm following this tutorial:
  <a href="http://devcenter.heroku.com/articles/django" rel="noreferrer">http://devcenter.heroku.com/articles/django</a></p>
  
  <p>At some point I'm suposed to do:</p>
  
  <pre><code>pip freeze &gt; requirements.txt
  </code></pre>
  
  <p>(Ofc. from virtualenv created instance of python)</p>
  
  <p>And I get this:</p>
  
  <pre><code>(venv)przemoli@ubuntu:~/Programowanie/hellodjango$ cat requirements.txt 
  BeautifulSoup==3.2.0
  Brlapi==0.5.5
  CherryPy==3.1.2
  ClientForm==0.2.10
  Django==1.3
  GnuPGInterface==0.3.2
  PAM==0.4.2
  PIL==1.1.7
  Routes==1.12.3
  Twisted-Core==11.0.0
  Twisted-Names==11.0.0
  Twisted-Web==11.0.0
  WebOb==1.0.8
  adium-theme-ubuntu==0.3.1
  apt-xapian-index==0.44
  apturl==0.5.1ubuntu1
  chardet==2.0.1
  command-not-found==0.2.44
  configglue==1.0
  cssutils==0.9.8a1
  defer==1.0.2
  distribute==0.6.19
  django-tagging==0.3.1
  dnspython==1.9.4
  duplicity==0.6.15
  gnome-app-install==0.4.7-nmu1ubuntu2
  httplib2==0.7.2
  jockey==0.9.4
  keyring==0.6.2
  launchpadlib==1.9.8
  lazr.restfulclient==0.11.2
  lazr.uri==1.0.2
  louis==2.3.0
  lxml==2.3
  mechanize==0.1.11
  nvidia-common==0.0.0
  oauth==1.0.1
  onboard==0.96.1
  oneconf==0.2.6.7
  papyon==0.5.5
  pexpect==2.3
  piston-mini-client==0.6
  protobuf==2.4.0a
  psycopg2==2.4.4
  pyOpenSSL==0.12
  pycrypto==2.3
  pycups==1.9.59
  pycurl==7.19.0
  pyinotify==0.9.1
  pyparsing==1.5.2
  pyserial==2.5
  pysmbc==1.0.10
  python-apt==0.8.0ubuntu9
  python-dateutil==1.4.1
  python-debian==0.1.20ubuntu2
  python-virtkey==0.60.0
  pyxdg==0.19
  sessioninstaller==0.0.0
  simplejson==2.1.6
  system-service==0.1.6
  ubuntu-sso-client==1.4.0
  ubuntuone-couch==0.3.0
  ubuntuone-installer==2.0.0
  ubuntuone-storage-protocol==2.0.0
  ufw==0.30.1-2ubuntu1
  unattended-upgrades==0.1
  usb-creator==0.2.23
  virtualenv==1.6.4
  wadllib==1.2.0
  wsgiref==0.1.2
  xdiagnose==1.1
  xkit==0.0.0
  zope.interface==3.6.1
  </code></pre>
  
  <p>When deploying on heroku it fails at Brlapi .....</p>
  
  <p>I see lots of stuff from my main python installation which is on ubuntu. Which is BAD since Ubuntu use python for quite a few thing itself (ubuntu-one, usb-creator, etc..).</p>
  
  <p>I do not need them on heroku! I need only Django, psycopg2, and their dependencies.
  I do not even know if its fault of pip, or virutalenv. (If you want to know my setup look at link above I copied it into terminal)</p>