Send SMS via TextMagic API and Python

TextMagic.py

# import modules
from textmagic.rest import TextmagicRestClient

def runAPI():
    username = <username>
    token = <token>
    global client
    client = TextmagicRestClient(username, token)

def messagetext(name, examDate, examTime):
    examDate=str(examDate)
    date = ("%d月%d日" % (int(examDate[-4:-2]), int(examDate[-2:])))
    examTime=str(examTime)
    time=("%s:%s"%(examTime[:-2], examTime[-2:]))
    message = ("%s君您好，xx醫院提醒您，%s%s有....，若無法配合請來電(07)7533967轉0000，謝謝" % (name, date, time) )
    return message

def messageschedule(examDate): #檢查日期需要是西元 YYYYMMDD
    examDate=datetime.datetime.strptime(str(examDate), "%Y%m%d")
    #週一檢查，週四寄 (提前四天)，其餘皆提前兩天。時間皆大約中午。

    if examDate.isoweekday() == 1: #週一檢查
        messageSchedule=examDate-datetime.timedelta(days=3, hours=12)
    else:
        messageSchedule=examDate-datetime.timedelta(days=1, hours=12)

    if (messageSchedule-datetime.datetime.now()).total_seconds() < 60: #若沒有提早足夠的時間就10分鐘後寄出
        messageSchedule=datetime.datetime.now() + datetime.timedelta(minutes=10)

    messageSchedule=messageSchedule.timestamp()
    return messageSchedule

def sendmessage(name, messageText, phone, client, messageSchedule):
    phone= ("886%d" % phone)
    message = client.messages.create(phones=phone, text=messageText, sendingTime=messageSchedule)
    
    # for log
    _timestamp = datetime.datetime.now() 
    _date = _timestamp.strftime("%Y%m%d")
    _time = _timestamp.strftime("%H%M%S")
    filepath = "log/%s.txt" % (_date)
    log = "%s %s %s"%(_time, phone, messageText)
    print(log)
    outF = open(filepath, "a+")
    outF.write(log)
    outF.write("\n")
    outF.close()