mac系统 pip3 install scrapy 失败 No local packages or working download links found for incremental>=16.10.1 使用pip3 install scrapy命令之后,会出现如下问题: Collecting scrapy Downloading Scrapy-1.4.0-py2.py3-none-any.whl (248kB) 100% |████████████████████████████████|
主要错误提示如下: ld: library not found for -lssl clang: error: linker command failed with exit code 1 (use -v to see invocation) error: command 'clang' failed with exit status 1 ---------------------------------------- Failed building wheel for mysqlclient
chenhuimingdeMacBook-Pro:groceryList Mch$ sudo pip3 install beautifulsoup4 The directory '/Users/Mch/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and o
构建maven项目 创建自定义的文件目录方法: 在项目名称右键-->Builder Path-->Configure Builder Path...Source菜单下的Add Folder按钮 不用勾选选框,直接选中要创建的目录分支后,点击下面的Create New Folder按钮,写目标目录的名称,finish OK-->Apply --> Apply and close