AttributeError: module 'pip' has no attribute 'main'问题解决

Mac平台下找到packaging_tool.py（如果其他平台可以按报错查这个文件目录及文件。）

URL：/Applications/PyCharm.app/Contents/helpers/packaging_tool.py

好久没打开PyCharm创建项目了，今天打开突然报了一个“AttributeError: module 'pip' has no attribute 'main'”查了资料才知道怎么解决。

vim /Applications/PyCharm.app/Contents/helpers/packaging_tool.py

修改do_install和do_uninstall

原来：
def do_install(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip.main(['install'] + pkgs)


def do_uninstall(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip.main(['uninstall', '-y'] + pkgs)

修改后
def do_install(pkgs):
    try:
        #import pip
        try:
            from pip._internal import main
        except Exception:
            from pip import main
    except ImportError:
        error_no_pip()
    return main(['install'] + pkgs)


def do_uninstall(pkgs):
    try:
        #import pip
        try:
            from pip._internal import main
        except Exception:
            from pip import main
    except ImportError:
        error_no_pip()
    return main(['uninstall', '-y'] + pkgs)

修改好就OK了。