Archives: 2020 | PrimerPy

2020

04

06

AppContext vs. RequestContext and Flask vs. Request

In Flask, there are two types of context: AppContext, it’s a Flask object app = Flask(__name__) RequestContext, it’s

2020-04-06 Python

05

Python Class Variables and Instance Variables

Understanding the difference between Class Var and Instance Var is fundamental to OOP. Class VarGiven a class Lang, as b

2020-04-05 Python

OOP Python Class

01

Flask: avoid circular import

One of the common mistakes using Flask is circular import.To avoid it, we can split one application file into three file

2020-04-01 Python

Python Flask Web Framework

01

Flask Jinja2 Template

Use Jinja2 template for Flask frontend rendering. Pass VariablesThere are two ways passing variables via Jinja2 pass va

2020-04-01 Python

Python Flask Web Framework Jinja2

01

Flask Responses in 3 common types

Flask is able to handle couple of accepted types of responses. I’ll summarize three most common ones: Text Json Templat

2020-04-01 Python

Python Flask Web Framework

03

31

CentOS 7

CentOS ConfigurationBasic Info Checks Check CentOS Version cat /etc/redhat-release Set up Networks Open network service

2020-03-31 Linux

Linux CentOS

18

Computational Genomics

Computation GenomicsCentral Dogma of Biology DNA: DNA is the genetic code A, C, G, T DNA is transcribed into RNA in a s

2020-03-18 Bioinfomatics

Bioinfomatics Computational Genomics

17

Get Started with Typescript

1 Get Started with TypescriptAny large and good apps written in Javascript will be eventually written in Typescript. 1-1

2020-03-17 TS/JS

Typescript

15

A Primer on Numpy

A Primer on NumpyThe core data structure used in numpy is array. Import Numpy After install numpy, simply import it. Usu

2020-03-15 Python

Python Numpy Data Science

15

Python Decorator

What is a Python DecoratorEssentially, Python Decorator is a type of Python function.A Python decorator enables addition

2020-03-15 Python

Python Decorator

14

20-Valid-Parentheses

ProblemGiven a string containing just the characters ‘(‘, ‘)’, ‘{‘, ‘}’, ‘[‘ and ‘]’, determine if the input string is v

2020-03-14 Algorithms

Algorithms Stack LeetCode Data Structure

14

1-TwoSum

Problem Given an array of integers, return indices of the two numbers such that they add up to a specific target. You ma

2020-03-14 Algorithms

Algorithms LeetCode Data Structure HashTable