Summary
In this chapter, we learned what a cryptocurrency wallet is. We saw that a cryptocurrency wallet usually have certain features like generating accounts that protected by passwords, showing the balance of account, and so on. Then we developed a simple cryptocurrency wallet application using the PySide library and the Ape Framework. After testing it, we decided to add some improvements to the UX of the application like showing balance and using address database. Finally, we could feel the application become easier to use. In the next chapter, we will learn about InterPlanetary File System to overcome a certain weakness from blockchain.