Python中通过csv的writerow输出的内容有多余的空行
第一种方法
如下生成的csv文件会有多个空行
import csv #python2可以用file替代open with open("test.csv","w") as csvfile: writer = csv.writer(csvfile) #先写入columns_name writer.writerow(["index","a_name","b_name"]) #写入多行用writerows writer.writerows([[0,1,3],[1,2,3],[2,3,4]])
加入newline='' 参数
#coding=utf-8 import csv #python2可以用file替代open with open("test.csv","wt",newline='') as csvfile: writer = csv.writer(csvfile) #写入多行用writerows writer.writerows([["index","a_name","b_name"],[0,1,3],[1,2,3],[2,3,4]])
这样就不会有空行了。
第二种方法:
先写入csv文件,然后读出去掉空行,再写入
with open('E:\\test.csv','wt')as fout: #生成csv文件,有空行 cout=csv.DictWriter(fout,list_attrs_head ) cout.writeheader() cout.writerows(list_words) with open('E:\\test.csv','rt')as fin: #读有空行的csv文件,舍弃空行 lines='' for line in fin: if line!='\n': lines+=line with open('E:\\test.csv','wt')as fout: #再次文本方式写入,不含空行 fout.write(lines)
参考:
https://www.crifan.com/python_csv_writer_writerow_redundant_new_line/?utm_source=tuicool&utm_medium=referral
https://blog.csdn.net/langaer/article/details/70052971