python怎么讀文件

這篇文章主要講解了“python怎么讀文件”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“python怎么讀文件”吧！

#!usr/bin/env python
# encoding:utf-8


###刪除包含關鍵字“ Time taken: 0.”

def readfile(filename):
    lines = [line for line in open(filename)]

def printTimeTaken(filename):
    filename="data/aaa.csv"
    lines = [line for line in open(filename)]
    for line in lines[: ]:
        if not line.__contains__("Time taken: 0."):
            print(line.replace('\n', ''))
def appendToFile(context,filepath):

    print()

def contactexp(tb,date_list,cpexp,file,filesql):

        for tbname in tb:
            if tbname.replace('\n','').endswith("day") or tbname.replace('\n','').endswith("semester")or tbname.replace('\n','').endswith("7days"):
                for date_item in date_list:
                    file.write(cpexp.format_map(vars()).lower() + "\n")
                    filesql.write(addPart.format_map(vars()).lower()+"\n")
            else:
                date_item='2020-08-01'
                file.write(cpexp.format_map(vars()).lower() + "\n")
                filesql.write(addPart.format_map(vars()).lower()+"\n")




def whh(filename,file,filesql):
    with open(file, "w+") as file:
        with open(filesql, "w+") as filesql:
            tbname_list=[]
            lines = [line for line in open(filename)]
            for line in lines[: ]:
                if line.lower().replace('\n','').endswith("_"):
                    tbname_list=[line.lower().replace('\n','')+"day",line.lower().replace('\n','')+"week",line.lower().replace('\n','')+"semester",line.lower().replace('\n','')+"7days"]
                   # tbname_list = [line.lower().replace('\n', '') + "week"]
                    contactexp(tbname_list, date_list, cpexp, file,filesql)

                else:
                    #for date_item in date_list:
                    date_item = '2020-08-01'
                    tbname=line.lower().replace('\n','')
                    file.write(cpexp.format_map(vars()).lower() + "\n")
                    filesql.write(addPart.format_map(vars()).lower() + "\n")

#date_list=["2020-06-15","2020-06-16","2020-06-17","2020-06-18","2020-06-19","2020-06-20","2020-06-21"]
date_list=["2020-08-01"]

cpexp="hadoop fs -rm -r /user/hive/warehouse/dev_treasury.db/{tbname}/day={date_item} \n hadoop distcp hdfs://10.1.11.3:8020/user/hive/warehouse/treasury.db/{tbname}/day={date_item} hdfs://sandbox-hadoop-03.xuele.net:8020/user/hive/warehouse/dev_treasury.db/{tbname}/day={date_item}"
addPart="alter table {tbname} add partition (day='{date_item}');"

#fileC= open("data/shell", 'w')
file="data/shell"
filesql="data/sql"
#date_list.append()
print("test")
#for date_item in date_list:
#    print(date_item.replace('\n',''))

tbname_list=whh("data/replyjob",file,filesql)
#contactexp(tbname_list,date_list,cpexp,file)

感謝各位的閱讀，以上就是“python怎么讀文件”的內容了，經過本文的學習后，相信大家對python怎么讀文件這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是億速云，小編將為大家推送更多相關知識點的文章，歡迎關注！