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发布时间:2018-01-19 17:44:09
pandas.sum()函数默认时对列求和。对行求和 用dataframe.sum(axis=1),(实际是设置列坐标为1)。......
发布时间:2018-01-11 12:27:46
http://blog.csdn.net/shwan_ma/article/details/76906027?locationnum=10&fps=1importerror: dll load failed: 找不到指定的模块我的python默认目录为:d:\python\lib\site-packages\pywin32_system32 原因是pywin32的dll需要放到c:\windows\system32目录下, 该文件夹下有两个dll,“pythoncom35.dll” .........
发布时间:2016-10-10 11:40:25
ubuntu 16.04 xampp环境下,安装mysql-client,执行mysql后报错:error 2002 (hy000): can't connect to local mysql server through socket解决方法:将/opt/lampp/etc/my.cnf 复制到 /etc/my.cnf下,重启动服务就可以了。参考:http://stackoverflow.com/questions/11657829/error-2002-hy000-cant-connect.........
发布时间:2016-08-22 17:44:16
http://www.fullstackdevel.com/coding-tech/python/767.html这个列表包含与网页抓取和数据处理的python库网络通用urllib -网络库(stdlib)。requests -网络库。grab – 网络库(基于pycurl)。pycurl – 网络库(绑定libc.........
发布时间:2016-05-22 20:53:55
python 资源大全http://python.jobbole.com/84464/......