最近在看一个自动化测试框架的问题,需要用到Lxml库,下载lxml总是报错. 1,使用pip安装lxml pip install lxml 2,然后报错了,报错内容是: In file included from src/lxml/lxml.etree.c:139:src/lxml/etree_defs.h:9:10: fatal error: 'libxml/xmlversion.h' file not found#include "libxml/xmlversion.h" ^1 e…
python安装tensorflow报错:python No matching distribution found for tensorflow==1.12.0 python版本是3.7.2 要安装的tensorflow版本是1.12.0 pip版本是18.1 安装操作是在pycharm上进行操作的. 但是一安装就报错:python No matching distribution found for tensorflow==1.12.0 解决办法: 将python进行退版本,也就是卸载当前这…
1.mac下python环境pip报错: issuserdeMacBook-Pro:~ issuser$ pip install pyinstallerCollecting pyinstaller Could not fetch URL https://pypi.python.org/simple/pyinstaller/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSIO…