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python3.4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)#...

都读出来放在一个list中, 一次写入就成了. 注意修改一下变量filename为你自己的路径. from functools import reduceimport jsonfilename = '/path/to/your/file'data = reduce(lambda s, x: s.extend([int(e) for e in x.split(',')]) or s, ope...

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

最顶上这样写: #!/usr/bin/env python# coding: UTF-8还有文件名的引号前加u

假设csv文件地址为:E:\test.csv,则 f=open('E:\\test.csv') lines=f.readlines() #lines就是csv读出的表格了

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() ......

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)

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

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