```ruby
class PycharmCe < Cask
  url 'http://download.jetbrains.com/python/pycharm-community-3.4.dmg'
  homepage 'http://www.jetbrains.com/pycharm'
  version '3.4'
  sha256 'da083ac2761e4060e6b3c7446671ae9487045114a82dd64894e113dc9eb3e596'
  link 'PyCharm CE.app'
end
```

Upgrade Pycharm CE.app to v2.4.1
user
```ruby
class PycharmCe < Cask
  url 'http://download.jetbrains.com/python/pycharm-community-3.4.1.dmg'
  homepage 'http://www.jetbrains.com/pycharm'
  version '3.4.1'
  sha256 '18b4d2d61badb81feaf22a51a7c76b85618e5a7a01f4f4c5e46079d134c64002'
  link 'PyCharm CE.app'
end
```
assistant