http://stackoverflow.com/questions/6628476/renaming-a-virtualenv-folder-without-breaking-it
If you want to fix this manually, that is the way:
- modify /tmp/project/env/bin/activate with yout favoriate editor like Vim, usually in Line 42
VIRTUAL_ENV=’/tmp/myproject/env’ => VIRTUAL_ENV=’/tmp/project/env’
2. modify /tmp/project/env/bin/pip in Line 1
#!/tmp/myproject/env/bin/python => #!/tmp/project/env/bin/python