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import pandas as pd
import asyncio

# 初始化 DataFrame
df = pd.DataFrame(columns=['id', 'name', 'value'])

# 模拟异步增删改查操作
async def add_row(name: str, value: float):
    global df
    new_id = len(df) + 1

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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# Download new packages but don't install them
# Save in /etc/systemd/system/

[Unit]
Description=Pacman Automatic Download (no install) service
After=network-online.target

[Service]
# Wait time if process hangs
TimeoutStopSec=5m

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[Trigger]
Operation = Upgrade
Type = Package
Target = pacman-mirrorlist

[Action]
Description = Updating pacman-mirrorlist with reflector and removing pacnew...
When = PostTransaction
Depends = reflector
Exec = /bin/sh -c "reflector --protocol https --country 'United Kingdom' --score 10 --sort rate --save /etc/pacman.d/mirrorlist; rm -f /etc/pacman.d/mirrorlist.pacnew"

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[Unit]
Description=Pacman system updates
After=network.target

[Service]
ExecStart=/usr/bin/pacman -Sy

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Background

I may have let Arch go months without updates before. Its not advisable to apply them on a schedule either.

Solution

Providing regular prompts to apply updates seems like the best solution.

Schedule Download of Packages

This cronjob will download packages and cache locally. Put into root's crontab or run via sudo.

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"""Dilation, erosion, opening, closing operations on binary nifti files."""

import os
import numpy as np
from scipy.ndimage import morphology
from nibabel import load, save, Nifti1Image

# Load data
nii = load('/path/to/your/file.nii.gz')
basename = nii.get_filename().split(os.extsep, 1)[0]

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def dice(im1, im2, empty_score=1.0):
    """
    Computes the Dice coefficient, a measure of set similarity.
    Parameters
    ----------
    im1 : array-like, bool
        Any array of arbitrary size. If not boolean, will be converted.
    im2 : array-like, bool
        Any other array of identical size. If not boolean, will be converted.
    Returns

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import sys
class Tee(object):
    def __init__(file_name, mode):
        self._file = open(file_name, mode)

    def __enter__(self):
        return self

    def __exit__(self):
        self.__close()

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"""ssh-copy-id for Windows.

Example usage: python ssh-copy-id.py ceilfors@my-remote-machine

This script is dependent on msysgit by default as it requires scp and ssh.
For convenience you can also try that comes http://bliker.github.io/cmder/.
"""

import argparse, os
from subprocess import call