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InfiniteDict = lambda: defaultdict(InfiniteDict) # noqa

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# 修改默认 shell
set-option -g default-shell /bin/zsh
# 启用终端 256 色
set -g default-terminal "screen-256color"
# 状态栏编码
set -g status-utf8 on
# 状态栏前景色背景色
set -g status-fg white
set -g status-bg cyan
# 状态栏高亮

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def longest_substring(str1, str2):
    """
    >>> longest_substring("apple pie available", "apple pies")
    'apple pie'
    >>> longest_substring("apples", "appleses")
    'apples'
    >>> longest_substring("bapples", "cappleses")
    'apples'
    """
    result = ""

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class LRUCache:
    """ LRUCache implemented with HashMap and LinkList
    >>> cache = LRUCache(3)
    >>> cache.set(1,1)
    >>> cache.set(2,2)
    >>> cache.set(3,3)
    >>> cache
    capacity: 3 [(1, 1), (2, 2), (3, 3)]
    >>> cache.get(1)
    1

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Tmux 快捷键 & 速查表

启动新会话：

tmux [new -s 会话名 -n 窗口名]

恢复会话：

tmux at [-t 会话名]

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import platform
import time
import sys
import binascii
import marshal
import dis
import struct


def view_pyc_file(path):

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# ip source https://db-ip.com/db/#downloads

import csv
import netaddr

result = []
with open('dbip-country-2017-05.csv', 'r') as rf, \
        open('ip-cidr-CN', 'w') as wf:
    reader = csv.reader(rf, delimiter=',')
    for row in reader:

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求最大连续子序列和的 N 中方法

1) O(n^3)

def max_continuous_subsequence(l):
    maxsofar = 0
    length = len(l)
    for i in range(length):
        for j in range(i, length):

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def binary_search(l, t):
    low, high = -1, len(l)
    while low+1 != high:
        mid = (low + high) / 2
        if l[mid] < t:
            low = mid
        else:
            high = mid
    pos = high
    if pos >= len(l) or l[pos] != t:

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def flatten(seq):
    l = []
    for elt in seq:
        t = type(elt)
        if t is tuple or t is list:
            for elt2 in flatten(elt):
                l.append(elt2)
        else:
            l.append(elt)
    return l