prss.net
当前位置:首页 >> python34读取Csv >>

python34读取Csv

import csvwith open('eggs.csv', newline='') as csvfile: spamreader = csv.reader(csvfile, delimiter=',', quotechar=',') for row in spamreader: print(', '.join(row))

这两天刚好看到,Python CookBook上有说到。这里是三种读取csv的方法。 文件格式是这样的 Region,DATE_,RAW_ACU zh_ch,Jan 27 2017,208172 import csvfrom collections import namedtuple# with open('data.csv') as f:# f_csv = csv.reader(f)#...

你这个sys.setdefaultencoding("utf-8") 是Python2 的语法,Python 3 不支持这个。 Python 3 编码不需要这样。直接读埃只有bytes 和str 之间转换才需要decode 和encode

Python | 怎么读写csv文件 http://jingyan.baidu.com/article/f0e83a259f33c722e4910163.html

遍历文件夹,找出csv格式文件 import osstr_file=os.getcwd()for dirpaths, dirnames, filenames in os.walk(str_file): for filename in filenames: if filename.endswith('.csv'): with open(filename,'r')as f: line= f.readlines() ......

import pandas as pd from pandas import DataFrame,Series data = pd.read_csv('exampledatas.csv')

和普通文件一样读龋csv中文件数据项有逗号划分开。 infile = open("data.csv", 'r')for line in infile: data = line.rstrip().split(',') print(data)

用pandas库, import pandas as pddata = pd.read_csv('train.csv')train_data = data.values[0:TRAIN_NUM,1:]train_label = data.values[0:TRAIN_NUM,0] study.163.com/course/courseMain.htm?courseId=1000035 机器学习正好讲了这个手写识别的...

import xlrd EXCEL_BOOK_FULLNAME='FULL FILE NAME' workbook=xlrd.open_workbook(EXCEL_BOOK_FULLNAME) worksheet=workbook.sheet_by_name('Sheet1') rows=worksheet.nrows #worksheet rows cols=worksheet.ncols #worksheet columns lists=[[]...

import csvfor row in csv.reader(open('sales.csv','rb')): for col in row: print col

网站首页 | 网站地图
All rights reserved Powered by www.prss.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com