Common mistake

• ALWAY REMEMBER TO SPECIFY DATA TYPE like bias=0.0, np.array(xxx, dtype=float)

• assignment do not copy but just blinding

  

  https://towardsdatascience.com/assignment-shallow-or-deep-a-story-about-pythons-memory-management-b8fad87bfa6c

  A = [1,2,3,4]
  B = A
  C = A
  
  B.append(5)
  C = C + [6]
  B.append(6)
  
  # will results in "A is B", A == B == C
  

• list.pop(index_of_element)

Tricks

• partial(func, args) will return the callable function object with some of the arguments of func have already been filled in

Topics

• Basic
• String
• System
• Function
• Flow control
• IO
• Exception
• Containers
• OOP
• Modules & Packages
• Memory
• JSON

Tkinter: python GUI