Python统计时间段频次demo import datetime import pandas as pd # from pprint import pprint from pytz import timezone,all_timezones fmt = "%Y-%m-%d %H:%M:%S %Z%z" # Current time in UTC now_utc = datetime.datetime.now(timezone('UTC')) print(now_utc.strftime(fmt)) # Convert to US/Pacific time zone now_pacific = now_utc.astimezone(timezone('US/Pacific')) print(now_pacific.strftime(fmt)) now_pabeijing = now_utc.astimezone(timezone('Asia/Shanghai')) print(now_pabeijing.strftime(fmt)) # for zone in all_timezones: # if 'Asia' in zone: # print(zone) def get_loacl(x): if type(x['时间']) == str: time_str = x['日期']+' '+x['时间'] dt = datetime.datetime.strptime(time_str,'%Y/%m/%d %H:%M PDT') dt = timezone('US/Pacific').localize(dt) dt_beijing = dt.astimezone(timezone('Asia/Shanghai')) print(time_str,dt,dt_beijing) return dt_beijing else: return x['时间'] def calc_hours(df): # 生成24小时时间段 times = [] for i in range(24): times.append({'时间段': '{0}时'.format(i), 'section': (i, i + 1), '计数': 0}) # 处理带PDT的时间 df['hours'] = df.apply(lambda x: datetime.datetime.strptime(x['日期']+x['时间'],'%Y/%m/%d%H:%M PDT') if type(x['时间']) == str else x['时间'],axis=1) df['locals'] = df.apply(lambda x: get_loacl(x),axis=1) print(df) # 循环统计 for i,r in df.iterrows(): for tx in times: if tx['section'][0] <= r['locals'].hour < tx['section'][1]: tx['计数'] = tx['计数'] + 1 break # 转为dataframe dt = pd.DataFrame(times).drop(['section'],axis=1) return dt df = pd.read_excel('./亚马逊订单2022-10-19.xlsx',usecols=['日期','时间'],sheet_name='订单详情') d = calc_hours(df) print(d)import datetime import random # 生成随机测试时间数量 from pprint import pprint SAMPLE_COUNT = 10 SECTION = 'section' SUM = 'sum' def my_time(): times = [] for i in range(24): times.append({SECTION: (i, i + 1), SUM: 0}) cnt = 0 while True: h = random.randint(0, 23) m = random.randint(0, 59) t = datetime.time(hour=h, minute=m) for tx in times: if tx[SECTION][0] <= t.hour < tx[SECTION][1]: tx[SUM] = tx[SUM] + 1 pprint(f'{t.strftime("%H:%M")} @ {tx[SECTION]}') break cnt = cnt + 1 if cnt > SAMPLE_COUNT: break return times if __name__ == '__main__': timex = my_time() pprint(timex)

datetime的时区转换 1.将时区信息添加到datetime日期时间对象from datetime import datetime from pytz import timezone date_str = "2009-05-05 22:28:15" datetime_obj = datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S") datetime_obj_utc = datetime_obj.replace(tzinfo=timezone('UTC')) print(datetime_obj_utc.strftime("%Y-%m-%d %H:%M:%S %Z%z"))运行结果：2009-05-05 22:28:15 UTC+00002.将非UTC时区信息添加到datetime日期时间对象from datetime import datetime from pytz import timezone date_str = "2014-05-28 22:28:15" datetime_obj_naive = datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S") # 错误的方式❌! datetime_obj_pacific = datetime_obj_naive.replace(tzinfo=timezone('US/Pacific')) print(datetime_obj_pacific.strftime("%Y-%m-%d %H:%M:%S %Z%z")) # 正确的方式✅! datetime_obj_pacific = timezone('US/Pacific').localize(datetime_obj_naive) print(datetime_obj_pacific.strftime("%Y-%m-%d %H:%M:%S %Z%z"))运行结果：2014-05-28 22:28:15 PST-08002014-05-28 22:28:15 PDT-07003.时区转换from datetime import datetime from pytz import timezone fmt = "%Y-%m-%d %H:%M:%S %Z%z" # Current time in UTC now_utc = datetime.now(timezone('UTC')) print(now_utc.strftime(fmt)) # Convert to US/Pacific time zone now_pacific = now_utc.astimezone(timezone('US/Pacific')) print(now_pacific.strftime(fmt)) # Convert to Europe/Berlin time zone now_berlin = now_pacific.astimezone(timezone('Europe/Berlin')) print(now_berlin.strftime(fmt))运行结果：2009-05-06 03:09:49 UTC+00002009-05-05 20:09:49 PDT-07002009-05-06 05:09:49 CEST+02004.查看所有时区from pytz import all_timezones print len(all_timezones) for zone in all_timezones: if 'US' in zone: print(zone)运行结果：US/AlaskaUS/AleutianUS/ArizonaUS/CentralUS/East-IndianaUS/EasternUS/HawaiiUS/Indiana-StarkeUS/MichiganUS/MountainUS/PacificUS/Pacific-NewUS/Samoa

Ubuntu安装Samba服务及配置共享文件夹 1.安装sambasudo apt-get install samba samba-common2.创建共享文件夹，权限777mkdir /home/username/share sudo chmod 777 /home/username/share3.添加用户和密码sudo smbpasswd -a username4.修改配置文件sudo vi /etc/samba/smb.conf[share] comment = share folder browseable = yes path = /home/nanshou/share create mask = 0700 directory mask = 0700 valid users = username force user = username force group = username public = yes available = yes writable = yes5.重启sambasudo service smbd restart

Linux搭建打印服务器 1.安装p910ndapt install p910nd2.插上USB, dmesg检查是否连接[ 1966.857496] usb 2-1: new full-speed USB device number 3 using ohci-platform [ 1967.045264] usb 2-1: New USB device found, idVendor=09c5, idProduct=0588 [ 1967.045287] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1967.051636] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x09C5 pid 0x05883.编辑文件 vi /etc/default/p910nd# Printer number, if not 0 P910ND_NUM="0" # Additional daemon arguments, see man 8 p910nd P910ND_OPTS="-f /dev/usb/lp0" # Debian specific (set to 1 to enable start by default) P910ND_START="1"4.生效配置sudo systemctl restart p910nd reboot5.参考链接

git lg彩色显示日志 git lggit config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit"