treasure.py

# Py 文件所在目录
import os
print(__file__)  # 包括文件名
print(os.path.dirname(os.path.abspath(__file__)))



# REDIS SET ADD
import redis
r = redis.Redis(host='localhost', port=6379, db=0)
r.sadd('token', '12345')                                # Key, Value respectively
print(r.sismember('token', '12345'))                    # True
print(r.sismember('token', '23232'))                    # False
print(r.sismember('javascript', '12345'))               # False



# Token 唯一值算法，高性能
# http://blog.useasp.net/archive/2015/11/08/performance-compare-of-python-unique-token-generation-algorithms.aspx
import os
import binascii
token=binascii.b2a_base64(os.urandom(24))[:-1]
print(token.decode('utf-8'))



# 深入理解 None
list1 = []
if list1:
    print('not empty')
else:
    print('empty')


# PARSE JSON
import json
from pprint import pprint
a = {
    'name': 'ArisX',
    'age': 12,
    'height': 178,
}

print(type(json.dumps(a)))  # str type
print(json.dumps(a))  # a dict-like str

a_json = json.dumps(a)
print(type(json.loads(a_json)))
print(json.loads(a_json))

pprint(a_json)
pprint(json.loads(a_json))