报错 环境 解决 手动安装pip install mysqlclient 报错: _mysql.c(29) : fatal error C1083: Cannot open include file: 'mysql.h': No such file or directory no module named MySQLdb win7 py2.7 下载https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient 安装pip install mysql…
he following error occurred while trying to add or remove files in theinstallation directory: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/test-easy-install-2452.write-test' The installation directory you specified (via --install-…
问题描述:数据处理,尤其是遇到大量数据且需要for循环处理时,需要消耗大量时间,如代码1所示.通过data['trip_time'][i]的方式会占用大量的时间 代码1 import time t0=time.time() for i in range(0,len(data.index)): data['trip_time'][i] = pd.Timestamp(data['lpep_dropoff_datetime'][i]) - pd.Timestamp(data['lpep_pickup_…