By “shallow copying” it means the content of the dictionary is not copied by value, but just creating a new reference. >>> a = {1: [1,2,3]} >>> b = a.copy() >>> a, b ({1: [1, 2, 3]}, {1: [1, 2, 3]}) >>>
python – Difference between __str__ and __repr__? – Stack Overflow
Tóm tắt: cần __repr__ cho mọi class, vì cái default của Python không giúp thể hiện thông tin đầy đủ của đối tượng. Giá trị trả về của __repr__ sẽ hiện ra khi nhập vào tên của object instance, còn
Understanding the underscore( _ ) of Python – Hacker Noon
There are 5 cases for using the underscorein Python. For storing the value of last expression in interpreter. For ignoring the specific values. (so-called “I don’t care”) To give special meanings and functions to name of vartiables or functions. To use
How we rolled out one of the largest Python 3 migrations ever | Dropbox Tech Blog
Dropbox is one of the most popular desktop applications in the world: You can install it today on Windows, macOS, and some flavors of Linux. What you may not know is that much of the application is written using Python.
Pyomo for modeling optimization problems
Pyomo is a Python-based open-source software package that supports a diverse set of optimization capabilities for formulating, solving, and analyzing optimization models. A core capability of Pyomo is modeling structured optimization applications. Pyomo can be used to define general symbolic