Q61. What can you use Python generator functions for?
One of the reasons to use generator is to make the solution clearer for some kind of solutions. The other is to treat results one at a time, avoiding building huge lists ...
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Q62. When is not a good time to use Python generators?
Use list instead of generator when: 1 You need to access the data multiple times (i.e. cache the results instead of recomputing them) 2 You need random access (or any a...
Q63. What's your preferred text editor?
In professional Python software engineering, the choice of IDE or text editor focuses on productivity, type inference, debugging capabilities, and ecosystem integration: ...
Q64. When should you use generator expressions vs. list comprehensions in Python and vice-versa?
Iterating over the generator expression or the list comprehension will do the same thing. However, the list comp will create the entire list in memory first while the gen...
Q65. What is a negative index in Python?
Python arrays and list items can be accessed with positive or negative numbers. A negative Index accesses the elements from the end of the list counting backwards. Exampl...
Q66. What is the difference between range and xrange functions?
Range return s a list while xrange return s an xrange object which take the same memory no matter of the range size. In the first case you have all items already generate...
Q67. How can I find methods or attributes of an object in Python?
Builtin dir() function of Python ,on an instance shows the instance variables as well as the methods and class attributes def ined by the instance's class and all its ba...
Q68. What is the statement that can be used in Python if a statement is required syntactically but the program requires no action?
The `pass` statement in Python is a null statement (no-op). When executed, nothing happens. It is used as a syntactic placeholder where code is required but no action nee...
Q69. Do you know what is the difference between lists and tuples? Can you give me an example for their usage?
First list are mutable while tuples are not, and second tuples can be hashed e.g. to be used as keys for dictionaries. As an example of their usage, tuples are used when ...
Q70. What is the function of "self"?
Self is a variable that represents the instance of the object to itself. In most of the object oriented programming language, this is passed to the methods as a hidden pa...